PI P-2 5 Series User manual

Physik Instrumente (PI) GmbH & Co. KG, Auf der Roemerstrasse 1, 76228 Karlsruhe, Germany
Phone [phone], Fax [phone], Email [e-mail], www.pi.ws
PZ245E
P
-2x5 Piezo Actuator
User Manual
Version: 1.1.1
Date: 24.05.2022
This document describes the following products:

P-225
Preloaded high-load piezo actuator
P-225.10/.20/.40/.80: Without sensor
P-225.10V/.20V/.40V/.80V: Without sensor;
high temperature range and high vacuum
P-225.1S/.2S/.4S/.8S: With sensor
P-225.1SV/.2SV/.4SV/.8SV: With sensor; high
temperature range and high vacuum

P-235
Preloaded high-load piezo actuator
P-235.10/.20/.40/.80/.90: without sensor
P-235.10V/.20V/.40V/.80V/.90V: without
sensor; high-temperature range and high
vacuum
P-235.1S/.2S/.4S/.8S/.9S: with sensor
P-235.1SV/.2SV/.4SV/.8SV/.9SV: with sensor;
high-temperature range and high vacuum

The following company names and brands are registered trademarks of Physik Instrumente (PI) GmbH & Co.
KG:
PI®, NanoCube®, PICMA®, PILine®, NEXLINE®, PiezoWalk®, NEXACT®, Picoactuator®, PInano®, PIMag®,
Q-Motion®
The patents held by PI are found in our patent list:
https://www.physikinstrumente.com/en/about-pi/patents
© 2022 Physik Instrumente (PI) GmbH & Co. KG, Karlsruhe, Germany. The text, photographs and drawings in
this manual are protected by copyright. With regard thereto, Physik Instrumente (PI) GmbH & Co. KG retains
all the rights. Use of said text, photographs and drawings is permitted only in part and only upon citation of
the source.
Original instructions
First printing: 24.05.2022
Document number: PZ245E, CBo, version 1.1.1
Subject to change without notice. This manual is superseded by any new release. The latest release is
available for download (p. 3) on our website.

1About this Document 1
1.1 Objective and Target Group of this User Manual ...................................................... 1
1.2 Symbols and Typographic Conventions...................................................................... 1
1.3 Figures ........................................................................................................................ 2
1.4 Other Applicable Documents ..................................................................................... 2
1.5 Downloading Manuals................................................................................................ 3
2Safety 5
2.1 Intended Use .............................................................................................................. 5
2.2 General Safety Instructions ........................................................................................ 5
2.3 Organizational Measures............................................................................................ 6
3Product Description 7
3.1 Model Overview ......................................................................................................... 7
3.2 Product View ............................................................................................................ 10
3.2.1 Overview...................................................................................................... 10
3.2.2 Product Labeling.......................................................................................... 11
3.3 Scope of Delivery...................................................................................................... 12
3.4 Suitable Electronics .................................................................................................. 12
3.5 Accessories ............................................................................................................... 13
3.6 Technical Features.................................................................................................... 15
3.6.1 PICA Piezo Actuators ................................................................................... 15
3.6.2 Strain Gauge Sensors (SGS) ......................................................................... 15
4Unpacking 17
5Installation 19
5.1 General Notes on Installing ...................................................................................... 19
5.2 Connecting the P-2x5 to the Protective Earth Conductor........................................ 22
5.3 Mounting the P-2x5.................................................................................................. 23
5.4 Optional: Mounting a Tip ......................................................................................... 24
5.5 Fixing the Load.......................................................................................................... 25
5.6 Optional: Connecting the Purge Air ......................................................................... 25
6Starting and Operating 27
6.1 General Notes on Starting and Operating................................................................ 27
6.2 Determining the Operating Parameters................................................................... 30
Contents

6.2.1 Overview of Limiting Factors ....................................................................... 30
6.2.2 Calculating the Effective Mass..................................................................... 31
6.2.3 Calculating the Maximum Operating Frequency of the Loaded Piezo
Actuator....................................................................................................... 31
6.2.4 Calculating the Forces that Occur During Dynamic Operation.................... 32
6.2.5 Calculating the Power Requirement for Sinusoidal Operation ................... 32
6.3 Operating the P-2x5 ................................................................................................. 33
6.4 Discharging the P-2x5............................................................................................... 34
7Maintenance 35
7.1 General Notes on Maintenance ............................................................................... 35
7.2 Cleaning the P-2x5.................................................................................................... 35
8Troubleshooting 37
9Customer Service 39
10 Technical Data 41
10.1 Specifications............................................................................................................ 41
10.1.1 Data Table.................................................................................................... 41
10.1.2 Maximum Ratings........................................................................................ 43
10.1.3 Ambient Conditions and Classifications ...................................................... 44
10.2 Dimensions ............................................................................................................... 45
10.2.1 P-2x5 Piezo Actuator ................................................................................... 45
10.2.2 P-2x5 with P-177.50 Option (Temperature Sensor and Purge Air
Connector)................................................................................................... 46
10.2.3 P-2x5 with the P-706.00 Option (Water-Resistant Housing)....................... 46
10.2.4 Ball Tip P-176.B25........................................................................................ 46
10.2.5 Flat Tips P-176.F25 and P-176.F35 .............................................................. 47
10.2.6 Vacuum Feedthrough for High-Voltage Piezo Actuators ............................ 48
10.2.7 Vacuum Feedthroughs for Sensors ............................................................. 49
10.3 Pin Assignment ......................................................................................................... 50
10.3.1 Voltage Connection ..................................................................................... 50
10.3.2 Connection of the Position Sensor .............................................................. 50
10.3.3 Connection of the Temperature Sensor...................................................... 50
11 Old Equipment Disposal 51
12 European Declarations of Conformity 53

1 About this Document
P-2x5 Piezo Actuator PZ245E Version: 1.1.1 1
In this Chapter
Objective and Target Group of this User Manual.......................................................................... 1
Symbols and Typographic Conventions ......................................................................................... 1
Figures............................................................................................................................................ 2
Other Applicable Documents......................................................................................................... 2
Downloading Manuals ................................................................................................................... 3
1.1 Objective and Target Group of this User Manual
This user manual contains the information required for using the P-2x5 as intended ("x" stands
for the different models (p. 7)).
Basic knowledge of control technology, drive technologies, and suitable safety measures is
assumed.
The latest versions of the user manuals are available for download (p. 3) on our website.
1.2 Symbols and Typographic Conventions
The following symbols and typographic conventions are used in this user manual:
DANGER
Immediate threat of danger
Failure to comply could lead to death or serious injury.
Precautionary measures for avoiding the risk.
CAUTION
Dangerous situation
Failure to comply could lead to minor injuries or cause damage to equipment.
Precautionary measures for avoiding the risk.
NOTICE
Dangerous situation
Failure to comply could cause damage to equipment.
Precautionary measures for avoiding the risk.
1
About this Document

1 About this Document
2 Version: 1.1.1 PZ245E P-2x5 Piezo Actuator
INFORMATION
Information for easier handling, tricks, tips, etc.
Symbol/Label Meaning
1.
2.
Action consisting of several steps whose sequential order must be
observed

Action consisting of one or several steps whose sequential order is
irrelevant

List item
p. 5 Cross-reference to page 5
RS-232 Labeling of an operating element on the product (example: socket of
the RS-232 interface)
Warning signs fixed to the product that refer to detailed information in
this manual.
1.3 Figures
For better understandability, the colors, proportions, and degree of detail in illustrations can
deviate from the actual circumstances. Photographic illustrations may also differ and must not
be seen as guaranteed properties.
1.4 Other Applicable Documents
The devices and software tools from PI mentioned in this documentation are described in
separate manuals.
The latest versions of the user manuals are available for download (p. 3) on our website.
Product Document
E-421.00: High-power piezo amplifier module
PZ178E User Manual
E-470.20: High-power piezo amplifier
PZ178E User Manual
E-471.20: High-power piezo amplifier
PZ178E User Manual
E-472.20: High-power piezo amplifier, 2 channels
PZ178E User Manual
E-462.00: HVPZT piezo amplifier PZ210E User Manual
E-462.OE1: HVPZT high-power piezo amplifier, 10 to
1000 V, OEM version
PZ210E User Manual
E-464.00: HVPZT piezo amplifier, 3 channels
PZ176E User Manual

1 About this Document
P-2x5 Piezo Actuator PZ245E Version: 1.1.1 3
Product Document
E-481.00: High-power piezo amplifier / controller
PZ170E User Manual
E-482.00: PICA high-power piezo amplifier / controller
PZ236E User Manual
E-500: Modular piezo controller
PZ62E User Manual
1.5 Downloading Manuals
INFORMATION
If a manual is missing or problems occur with downloading:
Contact our customer service department (p. 39).
Downloading Manuals
1. Open the website www.pi.ws.
2. Search the website for the product number (e.g., P-225) or the product family (e.g.,
PICA Power).
3. Click the corresponding product to open the product detail page.
4. Click the Downloads tab.
The manuals are shown under Documentation. Software manuals are shown under
General Software Documentation.
5. Click the desired manual and fill out the inquiry form.
The download link will then be sent to the email address entered.

2 Safety
P-2x5 Piezo Actuator PZ245E Version: 1.1.1 5
In this Chapter
Intended Use.................................................................................................................................. 5
General Safety Instructions............................................................................................................ 5
Organizational Measures............................................................................................................... 6
2.1 Intended Use
The P-2x5 is a laboratory device as defined by DIN EN 61010-1. It is intended to be used in
interior spaces and in an environment which is free of dirt, oil and lubricants.
In accordance with its design, the P-2x5 is intended for the following applications:
Positioning of high loads; see "Specifications" (p. 41)
Dynamic positioning
Vibration damping
Force generation
The motion takes place in one axis.
The specifications of the P-2x5 apply to mounting with a vertically oriented motion axis.
Mounting with a horizontally oriented motion axis is not recommended.
The intended use of the P-2x5 is only possible in a completely mounted and connected state
and only in combination with suitable drive or control electronics (p. 12) available from PI. The
electronics is not included in the scope of delivery of the P-2x5.
The electronics must provide the required operating voltages. To ensure proper performance of
the position control, the electronics must also be able to read out and process the signals from
the position sensors.
2.2 General Safety Instructions
The P-2x5 is built according to state-of-the-art technology and recognized safety standards.
Improper use can result in personal injury and/or damage to the P-2x5.
Use the P-2x5 for its intended purpose only, and only when it is in perfect technical
condition.
Read the user manual.
Eliminate any malfunctions that may affect safety immediately.
The operator is responsible for the correct installation and operation of the P-2x5.
2
Safety

2 Safety
6 Version: 1.1.1 PZ245E P-2x5 Piezo Actuator
Temperature changes and compressive stresses can induce charges in the P-2x5 piezo actuator.
After being disconnected from the electronics, the piezo actuator can stay charged for several
hours. Touching the live parts of the P-2x5 can result in serious injury or death from electric
shock.
Do not open the P-2x5.
If a protective earth conductor is not or not properly connected, dangerous touch voltages can
occur on the P-2x5 in the case of malfunction or failure of the system. If there are touch
voltages, touching the P-2x5 can result in serious injury or death from electric shock.
Connect the P-2x5 to a protective earth conductor (p. 22) before starting.
Do not remove the protective earth conductor during operation.
If the protective earth conductor has to be removed temporarily (e.g., in the case of
modifications), reconnect the P-2x5 to the protective earth conductor before restarting.
Mechanical forces can damage or misalign the P-2x5.
Avoid knocks that affect the P-2x5.
Do not drop the P-2x5.
Avoid torques, bending forces, and lateral forces on the tip of the P-2x5.
Do not exceed the maximum permissible loads (p. 41).
2.3 Organizational Measures
User Manual
Always keep this user manual together with the P-2x5.
The latest versions of the user manuals are available for download (p. 3) on our
website.
Add all information from the manufacturer to the user manual, for example,
supplements or technical notes.
If you give the P-2x5 to a third party, include this user manual as well as other relevant
information provided by the manufacturer.
Do the work only if the user manual is complete. Missing information due to an
incomplete user manual can lead to serious or fatal injuries as well as damage to the
equipment.
Install and operate the P-2x5 only after you have read and understood this user manual.
Personnel Qualification
The P-2x5 may only be installed, started, operated, maintained, and cleaned by authorized and
appropriately qualified personnel.

3 Product Description
P-2x5 Piezo Actuator PZ245E Version: 1.1.1 7
In this Chapter
Model Overview............................................................................................................................. 7
Product View................................................................................................................................ 10
Scope of Delivery ......................................................................................................................... 12
Suitable Electronics...................................................................................................................... 12
Accessories................................................................................................................................... 13
Technical Features ....................................................................................................................... 15
3.1 Model Overview
INFORMATION
Optional accessories are available for the P-2x5 piezo actuators that have to be integrated
during the manufacturing of the P-2x5 (p. 13). If a P-2x5 piezo actuator is ordered with these
options, it receives a customer-specific product number (beginning with "P-2x5K").
This manual also applies to all piezo actuators that have a customer-specific product number
due to integrated options.
Piezo actuators without a sensor
Model Description
P-225.10 Preloaded high-load piezo actuator, 15 µm, 1000 V, 12500 N
P-225.20
Preloaded high-load piezo actuator, 30 µm, 1000 V, 12500 N
P-225.40
Preloaded high-load piezo actuator, 60 µm, 1000 V, 12500 N
P-225.80
Preloaded high-load piezo actuator, 120 µm, 1000 V, 12500 N
P-235.10
Preloaded high-load piezo actuator, 15 µm, 1000 V, 30000 N
P-235.20
Preloaded high-load piezo actuator, 30 µm, 1000 V, 30000 N
P-235.40 Preloaded high-load piezo actuator, 60 µm, 1000 V, 30000 N
P-235.80
Preloaded high-load piezo actuator, 120 µm, 1000 V, 30000 N
P-235.90
Preloaded high-load piezo actuator, 180 µm, 1000 V, 30000 N
3
Product Description

3 Product Description
8 Version: 1.1.1 PZ245E P-2x5 Piezo Actuator
Piezo actuators without a sensor, suitable for high-temperature range and high
vacuum
Model Description
P-225.10V
Preloaded high-load piezo actuator, 15 µm, 1000 V, 12500 N, high temperature
/ vacuum
P-225.20V
Preloaded high-load piezo actuator, 30 µm, 1000 V, 12500 N, high temperature
/ vacuum
P-225.40V
Preloaded high-load piezo actuator, 60 µm, 1000 V, 12500 N, high temperature
/ vacuum
P-225.80V
Preloaded high-load piezo actuator, 120 µm, 1000 V, 12500 N, high
temperature / vacuum
P-235.10V
Preloaded high-load piezo actuator, 15 µm, 1000 V, 30000 N, high temperature
/ vacuum
P-235.20V
Preloaded high-load piezo actuator, 30 µm, 1000 V, 30000 N, high temperature
/ vacuum
P-235.40V
Preloaded high-load piezo actuator, 60 µm, 1000 V, 30000 N, high temperature
/ vacuum
P-235.80V
Preloaded high-load piezo actuator, 120 µm, 1000 V, 30000 N, high
temperature / vacuum
P-235.90V
Preloaded high-load piezo actuator, 180 µm, 1000 V, 30000 N, high
temperature / vacuum
Piezo actuators with a position sensor
Model Description
P-225.1S
Preloaded high-load piezo actuator, 15 µm, 1000 V, 12500 N, SGS
P-225.2S
Preloaded high-load piezo actuator, 30 µm, 1000 V, 12500 N, SGS
P-225.4S Preloaded high-load piezo actuator, 60 µm, 1000 V, 12500 N, SGS
P-225.8S
Preloaded high-load piezo actuator, 120 µm, 1000 V, 12500 N, SGS
P-235.1S
Preloaded high-load piezo actuator, 15 µm, 1000 V, 30000 N, SGS
P-235.2S
Preloaded high-load piezo actuator, 30 µm, 1000 V, 30000 N, SGS
P-235.4S
Preloaded high-load piezo actuator, 60 µm, 1000 V, 30000 N, SGS
P-235.8S
Preloaded high-load piezo actuator, 120 µm, 1000 V, 30000 N, SGS
P-235.9S Preloaded high-load piezo actuator, 180 µm, 1000 V, 30000 N, SGS

3 Product Description
P-2x5 Piezo Actuator PZ245E Version: 1.1.1 9
Piezo actuators with a sensor, suitable for high-temperature range and high vacuum
Model Description
P-225.1SV
Preloaded high-load piezo actuator, 15 µm, 1000 V, 12500 N, SGS, high
temperature / vacuum
P-225.2SV
Preloaded high-load piezo actuator, 30 µm, 1000 V, 12500 N, SGS, high
temperature / vacuum
P-225.4SV
Preloaded high-load piezo actuator, 60 µm, 1000 V, 12500 N, SGS, high
temperature / vacuum
P-225.8SV
Preloaded high-load piezo actuator, 120 µm, 1000 V, 12500 N, SGS, high
temperature / vacuum
P-235.1SV
Preloaded high-load piezo actuator, 15 µm, 1000 V, 30000 N, SGS, high
temperature / vacuum
P-235.2SV
Preloaded high-load piezo actuator, 30 µm, 1000 V, 30000 N, SGS, high
temperature / vacuum
P-235.4SV
Preloaded high-load piezo actuator, 60 µm, 1000 V, 30000 N, SGS, high
temperature / vacuum
P-235.8SV
Preloaded high-load piezo actuator, 120 µm, 1000 V, 30000 N, SGS, high
temperature / vacuum
P-235.9SV
Preloaded high-load piezo actuator, 180 µm, 1000 V, 30000 N, SGS, high
temperature / vacuum

3 Product Description
10 Version: 1.1.1 PZ245E P-2x5 Piezo Actuator
3.2 Product View
3.2.1 Overview
The figure serves as an example and can differ from your model.
Figure 1: Exemplary product view
1Housing, consisting of:
1a: Base with wrench flats
1b: Housing tube
Not shown here: Optional inlets and outlets for purge air, optional
water protection
2Tip with wrench flat and M8 inner thread
3Cable exit for piezo voltage
Not shown here: Cable exits for sensors
4Protective earth connector
Arrow: Positive direction of motion of the tip

3 Product Description
P-2x5 Piezo Actuator PZ245E Version: 1.1.1 11
3.2.2 Product Labeling
Labeling Description
Data matrix code (example; contains the serial number)
P-225.80
Product number (example), the digits after the period refer
to the model
123456789
Serial number (example), individual for each P-2x5
Meaning of each position (from the left):
1 = internal information
2 and 3 = year of manufacture
4 to 9 = consecutive number
Manufacturer's logo
Warning sign "Pay attention to the manual!"
Old equipment disposal (p. 51)
Country of origin: Germany
Country of origin
WWW.PI.WS Manufacturer's address (website)
CE conformity mark
Symbol for the protective earth conductor, marks the
protective earth connector of the P-2x5 (p. 22)
Figure 2: P-2x5: Warning sign "DANGER" on voltage connection (with attached shorting plug):
Indicates risk of electric shock (p. 5)

3 Product Description
12 Version: 1.1.1 PZ245E P-2x5 Piezo Actuator
3.3 Scope of Delivery
Product no. Description
P-2x5 Piezo actuator according to order (p. 7)
000036450
M4 screw set for protective earth, consisting of:
1 M4x8 flat-head screw with cross recess, ISO 7045
2 safety washers
2 flat washers
P-202.01
Shorting plug for high-voltage piezo actuators
PZ246EK
Short instructions for "PICA Piezo Actuators 1000 V"
3.4 Suitable Electronics
You need electronics to operate a P-2x5. The device is selected depending on the type of
application. The table below lists the suitable devices.
Product no. Description
E-421.00
High-power piezo amplifier module, without housing, 1 channel, 1100 V
voltage range, 550 W, integrated power supply
E-470.20
High-power piezo amplifier, 1 channel, 1100 V voltage range, 550 W, benchtop
device
E-471.20
High-power piezo amplifier, 1 channel, 1100 V voltage range, 550 W, 19'',
prepared for servo controller and display / PC interface
E-472.20
2-channel high-power piezo amplifier, 1100 V voltage range, 550 W, 19"
E-462.00
HVPZT Piezo amplifier, 10 to 1000 V, benchtop device
E-462.OE1 HVPZT Piezo amplifier module, 10 to 1000 V, OEM Version
E-464.00
HVPZT piezo amplifier, 3 channels, 1100 V voltage range, benchtop device
E-481.00
PICA high-performance piezo amplifier / controller with energy recovery,
1100 V voltage range, 2000 W, 19''
E-482.00
PICA high-performance piezo amplifier / controller with energy recovery,
1050 V, 6 A, 19''

3 Product Description
P-2x5 Piezo Actuator PZ245E Version: 1.1.1 13
Product no. Description
E-500
Modular piezo controller (example configuration)
High-voltage piezo amplifier for PICA HVPZT, 3 channels, with PC interface and
display, consisting of:
1 × E-500.00
19" housing for modular piezo controller system, 1 to 3 channels
3 × E-508.00
HVPZT piezo amplifier module, 3 to 1100 V, 1 channel
1 × E-518.I3
Interface module, 3 channels, TCP/IP, USB, and RS-232 interfaces
Optionally as high-voltage amplifier / servo controller additionally with:
1 × E-509.S3
Sensor / servo controller module, strain gauge sensors, 3 channels
To order, contact our customer service department (p. 39).
Before selecting electronics, calculate the power requirements of your application
(p. 32).
3.5 Accessories
For production-related reasons, the P-177.50 and P-706.00 options must be ordered together
with the P-2x5 piezo actuator. Piezo actuators equipped with these options have a customer-
specific product number (begins with "P-2x5K").
Product no. Description
P-177.50
PT1000 temperature sensor and purge air connector for PICA high-voltage
piezo actuators (with E-481 and E-482 controllers)
P-706.00
Splash-proof housing (IP64), for P-225 and P-235
P-176.B25
Ball tip (p. 46), contact surface hardened and polished, for P-225 and P-235
P-176.F25
Flat tip (p. 47), contact surface hardened and polished, for P-225
P-176.F35
Flat tip (p. 47), contact surface hardened and polished, for P-235
P-203.VA
Vacuum feedthrough for high-voltage piezo actuators, to 10
-6
hPa, 100 °C,
consisting of:
Vacuum feedthrough LEMO SJG.0B.701.CJA.1173
Air-side cable with 2 LEMO connectors, 2 m
P-892.VA
Vacuum feedthrough strain gauge sensor, to 10
-6
hPa, 100 °C, consisting of:
Vacuum feedthrough LEMO SWH.0S.304.CLLSV
Air-side cable with 2 LEMO connectors, 2 m
P-899.VA
Vacuum feedthrough temperature sensor, to 10
-6
hPa, 100 °C, consisting of:
Vacuum feedthrough LEMO SWH.0S.303.CLLSV
Air-side cable with 2 LEMO connectors, 2 m

3 Product Description
14 Version: 1.1.1 PZ245E P-2x5 Piezo Actuator
Product no. Description
P-203.01
Extension cable for PICA HVPZT actuators, 1 m
P-203.02
Extension cable for PICA HVPZT actuators, 2 m
P-203.03
Extension cable for PICA HVPZT actuators, 3 m
P-203.05
Extension cable for PICA HVPZT actuators, 5 m
P-203.10
Extension cable for PICA HVPZT actuators, 10 m
P-203.15
Extension cable for PICA HVPZT actuators, 15 m
Connector (m): FGG.0B.701.CJA.1173; connector (f): PHG.0B.701.CJL.1173
Product no. Description
P-892.01
Extension cable, for strain gauge sensors, LEMO connectors, 1 m
P-892.02
Extension cable, for strain gauge sensors, LEMO connectors, 2 m
P-892.03
Extension cable, for strain gauge sensors, LEMO connectors, 3 m
P-892.05
Extension cable, for strain gauge sensors, LEMO connectors, 5 m
P-892.10
Extension cable, for strain gauge sensors, LEMO connectors, 10 m
P-892.15
Extension cable, for strain gauge sensors, LEMO connectors, 15 m
Connector (m): FFA.0S.304.CLAC32; connector (f): PCA.0S.304.CLLC32
Product no. Description
P-899.01
Extension cable for temperature sensor, LEMO connectors, 1 m
P-899.02
Extension cable for temperature sensor, LEMO connectors, 2 m
P-899.03
Extension cable for temperature sensor, LEMO connectors, 3 m
P-899.05
Extension cable for temperature sensor, LEMO connectors, 5 m
P-899.07 Extension cable for temperature sensor, LEMO connectors, 7 m
P-899.10
Extension cable for temperature sensor, LEMO connectors, 10 m
P-899.15
Extension cable for temperature sensor, LEMO connectors, 15 m
Connector (m): FFA.0S.303.CLAC32; connector (f): PCA.0S.303.CLLC32
To order, contact our customer service department (p. 39).

3 Product Description
P-2x5 Piezo Actuator PZ245E Version: 1.1.1 15
3.6 Technical Features
3.6.1 PICA Piezo Actuators
P-2x5 are PICA preloaded high-load piezo actuators for static and dynamic applications. They
have a submillisecond response time and subnanometer resolution.
The piezo actuators have a friction-free, preloaded PICA Power piezo ceramic that is integrated
in a stainless-steel housing. The high load capacity and internal preload makes them ideal for
applications such as precision manufacturing and active vibration damping.
3.6.2 Strain Gauge Sensors (SGS)
Strain gauge sensors derive the position information from their expansion. A strain gauge
sensor consists of an electrically conductive film, the resistance of which changes with the
strain. Strain gauge sensors are attached to the actuator and measure its displacement. The
sensors are equipped with a full-bridge circuit that is insensitive to thermal drift, and assure
optimum position stability in the nanometer range.