Kistler 9119AA2 Owner's manual

Type
Owner's manual

This manual is also suitable for

Instruction
Manual
MiniDyn
Multicomponent
Dynamometer
up to
4 000 N
Typ
e 9119AA1
9119AA1_002-622e-02.15
Instruction
Manual
MiniDyn
Multicomponent
Dynamometer up to
4 000 N
Type 9119AA1
9119AA1_002-622e-02.15
MiniDyn
Multicomponent
Dynamometer
up to 4 000 N
Type 9119AA1
Foreword
9119AA1_002-622e-02.15 Page 1
Foreword
Thank you for choosing a Kistler quality product
characterized 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
obligation to notify any person or organization of such
changes or improvements.
©2013 … 2015 Kistler Group. All rights reserved. Except as
expressly provided herein, no part of this manual may be
reproduced for any purpose without the express prior
written consent of Kistler Group.
Kistler Group
Eulachstrasse 22
8408 Winterthur
Switzerland
Tel. +41 52 224 11 11
Fax +41 52 224 14 14
www.kistler.com
MiniDyn Multicomponent Dynamometer up to 4 000 N, Type 9119AA1
Page 2 9119AA1_002-622e-02.15
Contents
1. Introduction ................................................................................................................................... 4
2. Important Information .................................................................................................................... 5
2.1 For Your Safety .................................................................................................................... 5
2.2 Hints for Handling this Device .............................................................................................. 6
2.3 Tips on Using the Instruction Manual ................................................................................... 7
2.4 What Happens When There are Changes? ........................................................................... 7
3. General Device Description ............................................................................................................ 8
3.1 What is a Multicomponent Dynamometer Used for? ........................................................... 8
3.2 Functional Principle .............................................................................................................. 9
3.3 Dynamometer Construction ............................................................................................... 10
4. Mounting, Installation and Initial Startup .................................................................................... 11
4.1 Important Information ........................................................................................................ 11
4.2 Mounting the Dynamometer .............................................................................................. 12
4.3 Basic Connection and Cabling of the Measuring System .................................................... 15
4.4 Dynamometer Positioning .................................................................................................. 15
4.5 Basic Connection and Cabling of the Measuring System .................................................... 16
4.6 Measuring System for 3-Component Measurement (F
x
, F
y
, F
z
) ........................................... 17
4.7 3-Component Force Measurement .................................................................................... 18
4.8 Measuring System for 6-Component Measurement (Fx, Fy, Fz, Mx, My, Mz) .................. 19
5. Operation ..................................................................................................................................... 21
5.1 Range Selection .................................................................................................................. 21
5.2 Measuring Small Changes in Force ..................................................................................... 21
5.3 Useful Frequency Range ..................................................................................................... 23
5.4 Piezoelectric Force Measurement ....................................................................................... 25
5.5 Tips for Better Measuring Results ....................................................................................... 28
5.6 Measurement Signal Polarity .............................................................................................. 28
6. Maintenance ................................................................................................................................ 29
6.1 Re-calibrating the Device ................................................................................................... 29
6.2 Maintenance Work ............................................................................................................ 30
7. Fault Elimination .......................................................................................................................... 31
7.1 Troubleshooting ................................................................................................................. 31
7.2 What to Do if the Dynamometer is Faulty .......................................................................... 32
8. Technical Data ............................................................................................................................. 33
8.1 MiniDyn Type 9119AA1 .................................................................................................... 33
8.2 Dimensions ........................................................................................................................ 34
8.2.1 Dynamometer Type 9119AA1 dimensions ............................................................ 34
Introduction
9119AA1_002-622e-02.15 Page 3
9. Accessories ................................................................................................................................... 35
9.1 Included Accessories ........................................................................................................... 35
9.2 Optional Accessories ........................................................................................................... 35
10. Ordering Code .............................................................................................................................. 38
11. Appendix ...................................................................................................................................... 39
11.1 Glossary .............................................................................................................................. 39
11.2 Measurement Uncertainty .................................................................................................. 43
11.3 Linearity .............................................................................................................................. 44
11.4 Frequency Range ................................................................................................................ 46
11.5 Influence of Temperature .................................................................................................... 47
Total pages 47
MiniDyn Multicomponent Dynamometer up to 4 000 N, Type 9119AA1
Page 4 9119AA1_002-622e-02.15
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
products 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
torque
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 sectors.
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
either on-line or in this manual, please contact Kistler's
extensive support organization.
Important Information
9119AA1_002-622e-02.15 Page 5
2. Important Information
It is essential to follow the instructions below for your own
personal safety when working and to ensure long-lasting,
trouble-free operation of the device.
2.1 For Your Safety
This device has been thoroughly tested and was
perfectly safe when it left the factory. To keep it in this
condition and ensure risk-free operation, the user must
observe the information and warnings contained in this
Instruction Manual.
The dynamometer must only be installed, operated and
repaired by persons who are familiar with the device
and who are suitably qualified for their particular work.
If you believe that the device can no longer be operated
without risk, it must be taken out of operation and
secured to prevent accidental operation.
You should believe that the device can no longer be
operated without risk,
if there are visible signs of damage on the device,
if the device is no longer working,
after prolonged storage under adverse conditions,
if mishandled during transportation.
When measuring the cutting force, fasten the
dynamometer to the machine tool as specified! Details
can be found in the 4.2 "Mounting the dynamometer"
chapter.
Fasten all the parts mounted on the cover plate of the
dynamometer in accordance with the forces that are
expected!
MiniDyn Multicomponent Dynamometer up to 4 000 N, Type 9119AA1
Page 6 9119AA1_002-622e-02.15
2.2 Hints for Handling this Device
You must only work with the dynamometer in specified
environmental and operating conditions
Insulation resistance is crucial for piezoelectric
measurements; it must be about 100 T
(but at least
10 T)
To obtain this value, all the plug connections must be
kept scrupulously clean and dry
The insulation resistance can be measured with a Type
5493 insulation tester
Protect the device signal output against contamination
and do not touch it with your fingers. Put on the
supplied cover if the connection is not assigned
The connecting cable (connecting cable from the
dynamometer to the charge amplifier input) has high
insulation. Only specified connecting cables must be
used
The connecting cable should not be removed from the
dynamometer
When the dynamometer is not being used, keep it in
the supplied packing case to protect it
During long-term measurements, make sure that the
dynamometer temperature stays as constant as possible
Important Information
9119AA1_002-622e-02.15 Page 7
2.3 Tips on Using the Instruction Manual
We always recommend that you read the entire Instruction
Manual. But if you are in a hurry and are already familiar
with Kistler dynamometers, you only have to read the
particular information you need.
We have tried to design this manual to make it easy for
you to directly access the information you are looking for.
Keep this Instruction Manual in a safe place, where it will
always be close at hand.
Should you lose the manual, contact your Kistler customer
service department to obtain an immediate replacement.
All the information and instructions in this manual may be
changed at any time without prior notice.
2.4 What Happens When There are Changes?
Modifications to the device usually result in changes to the
Instruction Manual. Ask your Kistler customer service
department about the update options for your
documentation.
MiniDyn Multicomponent Dynamometer up to 4 000 N, Type 9119AA1
Page 8 9119AA1_002-622e-02.15
3. General Device Description
3.1 What is a Multicomponent Dynamometer Used for?
The multicomponent dynamometer is used for dynamic
and quasistatic measurement of the 3 orthogonal
components of any force acting on the cover plate (Fx, Fy
and Fz).
The dynamometer is extremely rigid and therefore has a
high natural frequency. The high resolution allows the
smallest dynamic changes of large forces to be measured.
The dynamometer measures the active force, irrespective
of its application point. Both the average force value and
the dynamic increase in force can be measured. The useful
frequency range mainly depends on the natural frequency
of the entire measurement setup.
Fig. 1: MiniDyn Type 9119AA1
The most important areas of application for the
multicomponent dynamometer are:
General 3-component force measurement of small
forces
Force measurement in confined spaces
Cutting force measurement in precision machining,
such as:
precision machining
micromachining
ultra-high precision machining of brittle, hard
materials
General Device Description
9119AA1_002-622e-02.15 Page 9
3.2 Functional Principle
The force to be measured is applied via a cover plate and
distributed to four, 3-component force sensors arranged
between the cover plate and the two base plates.
Each force sensor contains three quartz crystal plate pairs,
of which one is sensitive to pressure in the z direction and
the other two are sensitive to shear in the x and
y directions. There is practically no deflection during
measurement.
In these four force sensors, the applied force is split into
three components.
Fig. 2: Force sensor setup in the multicomponent
dynamometer: quartz crystal plate pairs for the 3
measuring directions
For force measurement with 3 components, the individual
signals are brought together in the connecting cable.
Positive or negative charges are produced at the
connections, depending on the direction of the force.
Negative charges produce positive voltages at the charge
amplifier output, and vice versa.
MiniDyn Multicomponent Dynamometer up to 4 000 N, Type 9119AA1
Page 10 9119AA1_002-622e-02.15
3.3 Dynamometer Construction
The dynamometer consists of four 3-component force
sensors, mounted under high preload between two base
plates and one cover plate.
This preload is the requirement for friction force
transmission.
The four force sensors are installed ground-isolated. This
largely eliminates ground loop problems.
The dynamometer is rustproof and protected against the
ingress of splash water and cooling agent. Together with
the (Type 1687B5 or Type 1677A5) connecting cable, the
dynamometer meets the requirements of degree of
protection IP67.
As a result of the specific sensor location and signal
connection, the dynamometer is largely insensitive to
temperature shifts.
1 Base plates
2 Cover plate
3 Connector
1
2
3
1
Mounting, Installation and Initial Startup
9119AA1_002-622e-02.15 Page 11
4. Mounting, Installation and Initial Startup
4.1 Important Information
The Type 9119AA1 multicomponent dynamometer is a
precision instrument, with inherent accuracy that will only
remain useful and intact if the device is carefully handled. It
is therefore important to observe the following instructions:
Do not drop the dynamometer and do not subject it to
sharp blows! The maximum force of this type of shock
could exceed the device measuring range and cause
lasting deformation
Do not use a hammer to position the workpieces, as
striking the workpieces will also cause deformation
The chapters that follow contain information about
dynamometer installation.
MiniDyn Multicomponent Dynamometer up to 4 000 N, Type 9119AA1
Page 12 9119AA1_002-622e-02.15
4.2 Mounting the Dynamometer
To mount the dynamometer properly, please note the
following:
The dynamometer must only be installed by persons
who are familiar with the device and who are suitably
qualified for this work
The connecting cable is first connected to the
dynamometer. Both sides of the connector (the
dynamometer and the cable) are cleaned with Type
1003 cleaning and insulating spray. The enclosed O-
ring is used for sealing. The bearing surfaces for the O-
ring must be clean. The O-ring is inserted and the cable
flange screwed to the dynamometer with two screws,
and tightened until seated
Tightening torque (M
A
): 4.5 N·m
Before mounting the dynamometer on a machine tool
or a testing device, check that the mounting surface is
flat. Uneven bearing surfaces cause inner distortion,
which additionally exposes the individual force sensors
to high shear loads and can increase crosstalk
Fig. 3: Cable mounting with O-ring seal
1 2 3
3
1 Dynamometer
2 O-ring seal
3 M4x10 screw
4 Cable (high insulation)
Mounting, Installation and Initial Startup
9119AA1_002-622e-02.15 Page 13
The bottom surface of the dynamometer is ground, i.e.
precision machined. The device must therefore only be
installed on mounting surfaces that are ground or
machined to the same standard. The specific alignment of
the force sensors requires the quality of the mounting
surface to be meticulously monitored. Thoroughly clean
the bearing surfaces before assembly.
Make sure that the dynamometer is resting completely
flat. Even the tiniest air gap can produce unwanted
elasticity and lead to a reduction in the resonance
frequency of the measuring arrangement. Please
therefore pay attention to the oscillation aspects of the
assemblies as well
If possible, the connecting cable should always stay
connected to the dynamometer
Install the connecting cable so that it can neither shear
off nor be pulled out when working
The two long sides of the base plates or the long sides
of the cover plate are used to align the dynamometer
on a magnetic plate or a machine table
Alignment surfaces on base plates
Alignment surfaces on the cover plate
MiniDyn Multicomponent Dynamometer up to 4 000 N, Type 9119AA1
Page 14 9119AA1_002-622e-02.15
The dynamometer can be mounted in two different ways.
a. With 8 M4x25 screws
For this type of mounting, 8 M4 threaded bores
(minimum thread length: 12 mm) are required on the
assembly table. The tightening torque is always 4.3
N·m, the strength class 12.9.
b. On a magnetic plate
If a magnetic plate is used, there is no need to
subsequently provide the assembly table with
mounting bores.
Beware!
With this type of mounting, the process forces must not be
greater than the magnetic forces. It is essential to stop the
dynamometer slipping in order to prevent damage to the
measuring instrument.
Mounting, Installation and Initial Startup
9119AA1_002-622e-02.15 Page 15
4.3 Basic Connection and Cabling of the Measuring System
Charge amplifiers convert the electric charges output by
the dynamometer (picocoulomb = pC) into proportional
voltages that can be displayed, recorded or processed with
the usual instruments.
Please note the following information when cabling the
measuring system
The connecting cables from the dynamometer to the
charge amplifier must have good insulation and be low
triboelectricity. Only the specified connecting cables
must be used.
Conventional cables can be used for the connection
between the charge amplifier and the indicators or
evaluation devices.
All work on electrical connections must be carried out
carefully and tidily. Only remove the caps covering the
connections immediately before connecting a cable.
Please refer to the two chapters below for the cabling
information for specific configurations.
4.4 Dynamometer Positioning
The dynamometer and the cables must be posi-tioned
so that coolants can drain completely. This stops
aggressive bacteria forming in old coolant, which could
then damage the dynamometer and the cables.
Depressions and creases should therefore be avoided
Install the connecting cable so that it can neither shear
off nor be pulled out when working
MiniDyn Multicomponent Dynamometer up to 4 000 N, Type 9119AA1
Page 16 9119AA1_002-622e-02.15
4.5 Basic Connection and Cabling of the Measuring System
Charge amplifiers convert the electric charges yielded by
the dynamometer (pC) into proportional voltages that can
be displayed, recorded or processed with the usual
instruments.
Please note the following information when cabling the
measuring system
The connecting cables from the dynamometer to the
charge amplifier must have good insulation and be poor
in frictional electricity. Only the specified connecting
cables must be used
Conventional cables can be used for the connection
between the charge amplifiers and the indicators or
evaluation devices
All work on electrical connections must be carried out
carefully and tidily. Only remove the caps covering the
connections immediately before connecting a cable
Please refer to the two chapters below for the cabling
information for specific configurations
Mounting, Installation and Initial Startup
9119AA1_002-622e-02.15 Page 17
4.6 Measuring System for 3-Component Measurement (Fx, Fy, Fz)
The diagram below shows the elements required to connect
a dynamometer to a multichannel charge amplifier (e.g.
Type 5080Axx3x001). This is a ground-isolated measuring
chain with a 3-wire cable.
MiniDyn Connecting cable Multichannel charge amplifier
Type 9119AA1 Type 1687B5 Type 5080Axx3x001
Degree of protection EN 60529
Fig. 4: Measuring system for 3-component
measurement Fx, Fy, Fz
Input Output
Input Signals Pin No.
Ground 1
X1 + 2 2
X3 + 4 3
Y1 + 4 4
Y2 + 3 5
Z1 6
Z2 7
Z3 8
Z4 9
Fig. 5: Cable diagram for connecting cable Type 1687B5
Pin No. Output Signals
1 Ground
2 F
x
3 –
4 F
y
5 –
6 F
z
7 –
8 –
9 –
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Kistler 9119AA2 Owner's manual

Type
Owner's manual
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