Kistler 9327C User manual

Instruction
Manual
3-Component Force
Link
Type 9327C
9327C_002-477e-05.10

Instruction
Manual
3-Component Force
Link
Type 9327C
9327C_002-477e-05.10
Fz
Fx
Fy

Foreword
9327C_002-477e-05.10 Page 1
Foreword
Thank you for choosing a Kistler quality product character-
ized by technical innovation, precision and long life.
Information in this document is subject to change without
notice. Kistler reserves the right to change or improve its
products and make changes in the content without obliga-
tion to notify any person or organization of such changes
or improvements.
©2010, Kistler Group. All rights reserved. Except as ex-
pressly provided herein, no part of this manual may be re-
produced for any purpose without the express prior written
consent of Kistler Group.

3-Component Force Link, Type 9327C
Page 2 9327C_002-477e-05.10
Content
1. Introduction ................................................................................................................................... 4
2. Important Notes............................................................................................................................. 5
2.1 For Your Safety .................................................................................................................... 5
2.2 Unpacking............................................................................................................................ 6
2.3 Notes on Handling the Instrument ....................................................................................... 6
2.4 Tips on the Use of this Instruction Manual ........................................................................... 7
2.5 What Happens in the Event of Changes? ............................................................................. 7
3. General Description of the Instrument........................................................................................... 8
3.1 What is the Purpose of a 3-Component Force Link? ............................................................ 8
3.2 Functional Principle ............................................................................................................10
4. Assembly, Installation and Initial Start-Up .................................................................................. 11
4.1 Important Notes.................................................................................................................11
4.2 Mounting of 3-Component Force Link............................................................................... 11
5. Measuring Range/Introduction of Force ...................................................................................... 13
5.1 3-Component Force Measurement Using a Dynamometer ................................................ 13
5.2 6-Component Force Measurement Using a Dynamometer ................................................ 15
5.3 3-Component Force Measurement Using a Single Force Sensor......................................... 16
5.4 Measuring System with 3-Component Force Link .............................................................. 21
5.5 Measuring System with four 3-Component Force Links (Dynamometer)............................ 21
6. Operation..................................................................................................................................... 22
6.1 Range Selection.................................................................................................................. 22
6.2 Measuring Small Force Changes......................................................................................... 22
6.3 Useful Frequency Range..................................................................................................... 24
6.4 Piezoelectric Force Measurement ....................................................................................... 26
6.5 Hints for Better Measuring Results ..................................................................................... 29
6.6 Polarity of the Measuring Signal......................................................................................... 29
7. Maintenance ................................................................................................................................30
7.1 Recalibrating the Instrument .............................................................................................. 30
7.2 Maintenance Work ............................................................................................................ 30
8. Rectifying Faults .......................................................................................................................... 32
8.1 Troubleshooting .................................................................................................................32
8.2 If Your Sensor is Defective.................................................................................................. 32
9. Technical Data ............................................................................................................................. 33
9.1 3-Component Force Link Type 9327C ............................................................................... 33
9.2 Dimensions 3-Component Force Link Type 9327C............................................................. 34
9.3 Optional Accessories .......................................................................................................... 35

Content
9327C_002-477e-05.10 Page 3
10. Annex ...........................................................................................................................................38
10.1 Glossary ..............................................................................................................................38
10.2 Measurement Uncertainty ..................................................................................................41
10.3 Linearity..............................................................................................................................42
10.4 Frequency Range ................................................................................................................44
10.5 Influence of Temperature....................................................................................................45
10.6 Index ..................................................................................................................................47
Total pages 47

3-Component Force Link, Type 9327C
Page 4 9327C_002-477e-05.10
1. Introduction
Please take the time to thoroughly read this instruction
manual. It will help you with the installation, maintenance,
and use of this product.
To the extent permitted by law Kistler does not accept any
liability if this instruction manual is not followed or prod-
ucts other than those listed under Accessories are used.
Kistler offers a wide range of products for use in measuring
technology:
Piezoelectric sensors for measuring force, torque, strain,
pressure, acceleration, shock, vibration and acoustic-
emission
Strain gage sensor systems for measuring force and tor-
que
Piezoresistive pressure sensors and transmitters
Signal conditioners, indicators and calibrators
Electronic control and monitoring systems as well as
software for specific measurement applications
Data transmission modules (telemetry)
Kistler also develops and produces measuring solutions for
the application fields engines, vehicles, manufacturing,
plastics and biomechanics.
Our product and application brochures will provide you
with an overview of our product range. Detailed data
sheets are available for almost all products.
If you need additional help beyond what can be found ei-
ther on-line or in this manual, please contact Kistler's ex-
tensive support organization.

Important Notes
9327C_002-477e-05.10 Page 5
2. Important Notes
It is essential for you to study the following information,
compliance with which is for your personal safety during
the work and will ensure long, fault-free operation of the
instrument.
2.1 For Your Safety
This instrument has been thoroughly tested and has left
the factory in a perfectly safe condition. In order to
maintain this condition and to ensure hazard-free oper-
ation, the user must comply with the information and
warning notes contained in these operating instructions.
The sensor must be installed, operated and maintained
only by persons who are familiar with the instrument
and are adequately qualified for the work concerned.
If it is accepted that safe operation is no longer possible,
the instrument must be shut off and made safe against
accidental start-up.
Safe operation must be assumed to be no longer possi-
ble when the product
Shows visible signs of damage,
has been overloaded,
is no longer operating,
has been in lengthy storage under unsuitable condi-
tions and
has been subjected to rough transport conditions.
Mount the sensor in position as prescribed. Details can
be found in Chapter 4.1.
Secure all parts mounted on the sensor according to
anticipated forces!

3-Component Force Link, Type 9327C
Page 6 9327C_002-477e-05.10
2.2 Unpacking
Check all packaging for transport damage. Report any such
damage to the transporters and to the authorized Kistler
distributor.
2.3 Notes on Handling the Instrument
The sensor must be used only under the environmental
and operating conditions specified.
With piezoelectric sensors, insulation resistance is of
crucial importance; it must be approx. 1014 (but not
less than 1013 ). In order to preserve this value, all
plug-and-socket connections must be kept absolutely
clean and dry. The insulation resistance can be meas-
ured with the insulation tester Type 5493.
Protect the connector of the sensor against contamina-
tion and on no account touch it with your fingers (con-
nector front). Fit the cover supplied over the connector
when it is not in use.
A high-insulation cable is used to connect the sensor to
a charge amplifier. Once fitted, it should if possible
remain connected to the sensor. Use only specified con-
necting cables.
Protect the sensor when it is not in use by storing it in
its original packaging.

Important Notes
9327C_002-477e-05.10 Page 7
2.4 Tips on the Use of this Instruction Manual
We recommend you to read through the entire instruction
manual. However, if you are in a hurry and already have
experience with Kistler 3-component force links, you can
restrict yourself to the specific information needed.
We have endeavored to give these instructions a neat
layout to make it easy for you to gain direct access to the
information you require.
Please keep these instructions in a safe place where they
are always to hand.
If you lose these instructions, please contact your Kistler
customer service organization and you will receive a re-
placement by return.
All details and directions in these instructions are subject to
change at any time without prior notice.
2.5 What Happens in the Event of Changes?
Equipment modifications will normally result in changes to
the operating instructions. In such cases, please contact
your Kistler customer service organization concerning
updating facilities for your documentation.

3-Component Force Link, Type 9327C
Page 8 9327C_002-477e-05.10
3. General Description of the Instrument
3.1 What is the Purpose of a 3-Component Force Link?
The 3-component force link is used for the dynamic and
quasistatic measurement of the three orthogonal compo-
nents of any force acting on the sensor (Fx, Fyand Fz).
3-component force links measure:
Cutting forces during machining
Impact forces in crash tests
Recoil forces of rocket engines
Vibration forces of components for space travel
Friction forces
Forces in product testing
Ground reaction forces in biomechanics
Vehicle forces on a road and a test stand
Forces on a wind tunnel balance
Cutting Force Measurement
Fig. 1: Grinding