ATCP SONELASTIC SX-PD User manual
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
Page 2 of 21
Installation and Operation Manual
SX-PD
Adjustable support for discs and rings
Manufactured by:
ATCP do Brasil –Alves Teodoro Cerâmicas Piezoelétricas do Brasil Ltda.
ATCP Physical Engineering, SonelasticDivision
Rua Lêda Vassimon, 735-A
Ribeirão Preto –SP, Brazil
CEP 14026-567
CNPJ: 03.970.289/0001-60
Inscrição estadual: 797.013.492.110
Brazilian Industry
www.sonelastic.com
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
Page 4 of 21
TABLE OF CONTENTS
1. Introduction ................................................................................................. 05
2. Definitions .................................................................................................... 05
3. Application and features ............................................................................... 05
4. Configurations, parts, accessories and optional items .................................. 06
5. Parts identification ....................................................................................... 08
6. Specifications ............................................................................................... 09
7. Specimens ..................................................................................................... 09
7.1 Recommended aspect ratios .................................................................... 09
7.2 Placing the specimen ............................................................................... 10
8. Support installation ...................................................................................... 11
8.1 Requirements ........................................................................................... 11
8.2 Typical arrangements ................................................................................ 11
8.3 Replacing the support-cables ..................................................................... 13
8.4 Mounting the acoustic sensor in the vertical base .......................................... 14
8.5 Installing the IED Automatic Impulse Device ........................................................... 15
9. Support operation.......................................................................................... 16
9.1 Positioning the specimen............................................................................ 16
9.2 Positioning the acoustic sensor ................................................................... 16
9.3 Positioning the IED Automatic Impulse Device .................................................. 17
10. Acquisition and excitation modes ................................................................ 18
11. Warnings and support transportation.......................................................... 18
12. Maintenance and troubleshooting................................................................ 19
13. Symbology................................................................................................... 19
14. Technical support and warranty ................................................................. 19
15. Statement of responsibility.......................................................................... 20
Notes ................................................................................................................. 21
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
Page 5 of 21
1. Introduction
ATCP Physical Engineering equipment and products have been projected and manufactured
to provide a long-lasting and top-rated performance. This Installation and Operation Manual
contains all necessary information regarding the use and maintenance of SX-PD Support.
Carefully read this manual before using the support. Improper use may
damage the product and affect its performance.
2. Definitions
Impulse Excitation Technique: The Impulse Excitation Technique is a non-destructive
technique to determine the elastic moduli and damping of materials by the resonance
frequencies of test specimens. ASTM E1876 is the main standard related to the Impulse
Excitation Technique.
Resonance frequencies: Specimen natural frequencies of vibration.
Elastic modulus: Elastic modulus or Young’s modulus is defined as the slope of the stress-
strain curve at the elastic region, as described by Hooke’s Law. The elastic modulus
determined by Impulse Excitation Technique is also termed as dynamic elastic modulus.
Damping: Damping is the phenomenon by which mechanical energy is dissipated in dynamic
systems. It is directly linked to the presence of defects and to the material microstructure.
3. Application and features
SX-PD Support is an apparatus to support specimens for non-destructive characterization of
Young’s modulus and damping of materials by the Impulse Excitation Technique, in
agreement with ASTM E1876 and correlated standards. SX-PD Support was developed to be
used alongside Sonelastic®Systems.
SX-PD Support allows discs and ring-shaped specimens to rest on the nodal lines of the planar
vibration mode. This support is a practical and adjustable system according to the specimen
under test dimensions.
For greater convenience, SX-PD Support may be combined with IED Automatic Impulse
Device.
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
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4. Configurations, parts, accessories and optional items
SX-PD Support is available in both manual and automatic configurations. Optional items are
offered to customize the Sonelastic®Systems.
Manual configuration
Parts:
[01] –SX-PD Support;
[02] –CA-PD Acoustic Sensor with vertical mounting base.
Accessories:
[03] –Medium Manual Impulse Device.
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
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Automatic configuration
Parts:
[01] –SX-PD Support;
[02] –CA-PD Acoustic Sensor with vertical base.
Accessories:
[03] –Medium Manual Impulse Device;
[04] –IED Automatic Impulse Device / Medium RT Impulse Device;
[05] –IED Automatic Impulse Device / Control unit.
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
Page 8 of 21
5. Parts identification
SX-PD Support
01- Support-cables tensioning spring;
02- Support-cable;
03- Central anchor;
04- Support-cable fastener;
05- Large bearing bar;
06- Sliding prop;
07- Small bearing bar;
08- Leveling feet;
09- Vertical bearing bar.
CA-PD Acoustic Sensor
01- Sensor;
02- P2 plug (3.5 mm);
03- Flexible cable;
04- Cable gland;
05- Frame;
06- Vertical mounting base.
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
Page 9 of 21
6. Specifications
Maximum dimensions for circular specimens (D x T) .................. 380 x 60 mm
Minimum dimensions for circular specimens (D x T) ................... 80 x 5 mm
Maximum dimensions for rectangular specimens (L x W x T) ....... 380 x 380 x 60 mm
Minimum dimensions for rectangular specimens (L x W x T) ....... 60 x 60 x 5 mm
Maximum weight capacity........................................................ 30 kg
Distance between the SLIDING PROPS (minimum - maximum) ... 50 - 385 mm
Support dimensions (L x W x T) .............................................. 562 x 562 x 160 mm
Support weight....................................................................... 1.6 kg
Working temperature range .................................................... 10 - 40°C (50 - 104 °F)
7. Specimens
7.1 Recommended aspect ratios
Minimum aspect ratios must be observed to avoid coupling between specimen’s vibration
modes. In addition, aspect ratio determines the pattern of frequency spectrum of the acoustic
response. We advise users to standardize the aspect ratio in order to facilitate the frequencies
identification. The table below presents the recommended aspect ratio and typical dimensions
for discs and rings.
Geometry
Recommended aspect ratio
Discs
𝐷𝑜
𝑇≥10
The ration between diameter (Do) and thickness (T) must
be greater than or equal to 10.
Rings
𝐷𝑜
𝑇≥10
The ratio between outer diameter (Do) and thickness (T)
must be greater than or equal to 10.
𝐷𝑜
𝐷𝑖
≥ 2
The ratio between outer diameter (Do) and inner diameter
(Di) must be greater than or equal to 2.
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
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Important observations for preparing and finishing the specimens:
- The recommended dimension tolerance is 2%;
- Faces should be flat and parallel;
- Corners should not be rounded.
Note: Minimum dimensions may vary as a function of aspect ratio and material Young’s
modulus; the frequency should be lower than CA-DP Acoustic Sensor maximum frequency
(96 kHz). It is possible to estimate the frequency using SonelasticSoftware simulation tool.
The higher the Youngs’ modulus, the higher the frequency.
7.2 Placing the specimen
The specimen should be symmetrically placed on the support-cables, and only by its edges.
Typical placement for an abrasive grinding wheel.
Cable sliding prop adjustment (left) and center anchor (right).
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
Page 11 of 21
8. Support installation
8.1 Requirements
- A flat and leveled workbench with a free space of at least 60 x 120 cm (depth and width).
This space is enough to fit SX-PD Support, specimens, computer and optional items.
- A 127 or 220 VAC three-pin ground wired electrical mains plug. This plug is needed to
power the computer up.
The support installation consists of positioning it over the workbench, coupling the acoustic
CA-DP Acoustic Sensor to the vertical base and connecting it to the acquisition card.
8.2 Typical arrangements
Next are presented the typical arrangements for SX-PD Support:
[1]
Configuration: Manual.
Specimen: Disc.
Acoustic sensor: Using a vertical
mounting base.
Impulse device: Medium Manual
Impulse Device.
[2]
Configuration: Manual.
Specimen: Ring.
Acoustic sensor: Using a vertical
mounting base.
Impulse device: Medium Manual
Impulse Device.
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
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[3]
Configuration: Automatic.
Specimen: Disc.
Acoustic sensor: Using a vertical
mounting base.
Impulse device: IED Automatic Impulse
Device with Medium RT Impulse Device
for IED.
[4]
Configuration: Automatic.
Specimen: Ring.
Acoustic sensor: Using a vertical
mounting base.
Impulse device: IED Automatic Impulse
Device with Medium RT Impulse Device
for IED.
[5]
Configuration: Manual.
Specimen: Rectangular plate.
Acoustic sensor: Using a vertical
mounting base.
Impulse device: IED Automatic Impulse
Device with Medium RT Impulse Device
for IED.
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
Page 13 of 21
[6]
Configuration: Automatic.
Specimens: Rectangular plate.
Acoustic sensor: Using a vertical
mounting base.
Impulse device: IED Automatic Impulse
Device with Medium RT Impulse Device
for IED.
Attention! Before using SA-BC Support, verify if its four rubber feet are
on the workbench (not wobbly). If any of its feet is not flat on the
workbench, readjust it until all feet are securely placed and flat on the
surface.
8.3 Replacing the support-cables
SX-PD Support comes fitted with support-cables ready for use. To replace it, follow the steps
below:
Step 01 - Slide the four sliding props to the ends of the support bars, then release the
support-cables off the central anchor to lower the tension applied on them.
Step 02 –Slide the sliding props to the center of the support to free up space near the
tensioning springs.
Step 03 - Using pliers, firmly secure the ends of the support-cable and pull to detach it
from the tensioning spring lug.
Step 04 –Release the other support-cable end of its tensioning spring lug, then the cable
will free from the support.
Step 05 –Repeat the previous steps if it is need to remove both support-cable.
Step 06 –Attach the new support-cable to one of the tensioning springs lugs.
Step 07 –Using the pliers, firmly secure the other end of the cable and pull it until it is
fitted in the tensioning spring lug on the other side. Ensure the cable fitted and
that is tensioned by the tensioning spring.
Step 08 –Repeat the previous steps to fit the other support-cable, if necessary.
Step 09 –Verify if both support-cables are correctly supported on the top of the sliding
props. Then hook the cables through in the central anchor.
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
Page 14 of 21
8.4 Mounting the acoustic sensor in the vertical base
Step 01 –Insert the acoustic sensor in the vertical mounting base ensuring the wire goes
out through the side opening, as shown below:
Step 02 –Press the base against the acoustic sensor until it feels coupled and secured to
the base.
Step 03 –Position the acoustic sensor under the specimen, near its edges, allowing a
distance of approximately 1 cm between the specimen face and the acoustic
sensor, as shown next:
Step 04 –Connect the acoustic sensor to the acquisition card.
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
Page 15 of 21
8.5 Installing the IED Automatic Impulse Device
Step 01 –Place the RT Impulse Device below the specimen, near the edge, diametrically
opposite to the acoustic sensor. Adjust the distance between the impact tip and
the specimen surface to approximately 1 cm as shown next:
Step 02 –Connect the RT Impulse Device cable to the output jack at the IED Automatic
Impulse Device control unit
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
Page 16 of 21
9. Support operation
After following 8 –Support Installation steps, the SX-PD support will be ready for use:
9.1 Positioning the specimen
To carry out a fast and precise characterization of specimens using SX-PD Support:
Step 01 –Prepare the support according to all information provided up to this point;
Step 02 –Adjust the sliding props, allowing a distance between them at least 2 cm bigger
than the specimen outer diameter so the specimen will rest only on the
support-cables;
Step 03 –Place the specimen on the support-cables and, using a ruler, centralize the
sliding props and the specimen with respect the support.
After completing these steps, the specimen will be read for characterization.
Attention! Respect the maximum and minimum dimensions as describe in 6 –
Specifications.
9.2 Positioning the acoustic sensor
Step 01 –Mount the acoustic sensor on the vertical mounting base, as described in 8.4 –
installing the acoustic sensor for acoustic signal acquisition.
Step 02 –Adjust the acoustic sensor distance so its face is approximately 1 cm away from
the face of the specimen. Note: This distance is not critical for the results.
Step 03 –Position the acoustic sensor (height already adjusted) under the the specimen
for acoustic response acquisition.
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
Page 17 of 21
9.3 Positioning the IED Automatic Impulse Device
Step 01 –Install the RT Impulse Device as described in 8.5 –Installing the IED Automatic
Impulse Device.
Step 02 –Turn the impulse device adjusting nut anti-clockwise so the tip of the device
moves and stays at approximately 3 mm away from the specimen’s face.
Step 03 –To configure the Impulse Device intensity, verify the IED Installation and
Operation Manual.
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
Page 18 of 21
10. Acquisition and excitation modes
The table below describes in details the most practical positioning of the acoustic sensor and
impulse device for characterizing discs and rings employing the planar vibration mode.
Planar mode –ring
(anti-flexural)
Excitation and acquisition,
on the inferior face
diametrically opposed.
Allows Young’s Modulus
(E) characterization.
Applicable only to disks
and rings.
Planar mode –disc
(anti-flexural)
Excitation and acquisition,
on the inferior face
diametrically opposed.
Allows Young’s Modulus
(E) characterization.
Applicable only to disks
and rings.
SX-PD Support may be used to characterize the resonance frequencies of rectangular plates
too, however, the equipment is not able to calculate elastic moduli for this geometry.
11. Warnings and support transportation
Reading all the information contained in this Installation and Operation Manual is
compulsory for the correct use of the support;
The electricity network where the optional items and accessories will be connected for use
must have a functional ground system;
Do not use this support for other purposes apart from the ones specified by this Manual;
The non-compliance with the instructions provided by this manual in what regards the use
of the support may reduce or invalidate warranty time.
Support Transportation:
- Transport the support with care;
- Avoid impacts and falls when transporting the support;
- Do not transport the support under the rain, even when wrapped in its original packaging.
Sonelastic® Systems
SX-PD Adjustable support for discs and rings
Page 19 of 21
12. Maintenance and troubleshooting
- Depending on the specimen material, detachment of residues may occur during handling.
To avoid hazards and possible damages to the support, clean frequently using a slightly damp
cloth.
- To maintain the support in a good condition and extend its life, keep all accessories, optional
items and chutes clean.
Troubleshooting:
Problem
Possible cause
Solution
Cable sliding prop is locked.
The sliding chutes are dirty or
have been obstructed.
Clean the chutes or remove any
objects obstructing the way.
The support wobbles when
placed over a workbench.
The workbench surface is not
completely flat or presents
irregularities.
Adjust the rubber feet until the
four of them are completely flat
and supported by the surface.
The specimen touches the
central anchor hook and
disturb the measuring.
The weight of the specimen is
above the specified limit.
Verify 8 –Specifications to verify
the weight limits specified by the
manufactures.
Specimen does not fit
between the sliding props.
The dimensions of the
specimen are above the
specified limits.
Verify 8 –Specifications to verify
the maximum dimensions
specified by the manufactures.
13. Symbology
Attention! Risk of danger.
14. Technical support and warranty
If the support presents any abnormality, verify if the problem is listed in 12 –Maintenance
and troubleshooting. If the problem still cannot be fixed, contact ATCP.
ATCP Physical Engineering offers a 12-month warranty with this support, starting from the
date of purchase. It covers manufacturing defects or materials defects, but some factors may
cause the loss of warranty:
1 - The non-compliance with the recommended care regarding the installation and operation
of this support, as describe herein;
2 - Accidents, falls, inadequate installation or any other damage cause by incorrect use or
action of natural agents.
3 - Violation, repair or any other modification or alteration done in the support or parts of the
support carried out by non-authorized agents (non-authorized by ATCP Physical Engineering).
After the 12 months of warranty, parts, expenses and services shall be charged.
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