Related Manuals for Kistler 9287C Series
Summary of Contents for Kistler 9287C Series
- Page 1 Instruction Manual Multicomponent Force Plate for Biomechanics Type 9287C… ä 9287C_002-462e-03.11...
- Page 2 Instruction Manual Multicomponent Force Plate for Biomechanics Type 9287C… ä 9287C_002-462e-03.11...
- Page 4 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.
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Page 5: Table Of Contents
Multicomponent Force Plate for Biomechanics Type 9287C… Content Introduction ........................... 4 Important Information........................5 For your Safety........................5 ä-Conformity........................6 How to Treat the Instrument....................6 2.3.1 With External Amplifier (Type 9287C).................. 6 Hints for Using the Instruction Manual................. 7 What Happens After Modifications? .................. - Page 6 .......................35 8.4.2 Error ay .......................35 8.4.3 COP Correction Algorithm for Force Plates .................36 Frequency Response ......................37 Glossary............................38 Coordinate System......................38 9.1.1 Kistler Coordinate System ....................38 9.1.2 ISB Coordinate System......................39 Parameters Calculation......................39 Warranty............................40 Declaration of Conformity ......................41 Total pages 42 9287C_002-462e-03.11 Page 3...
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Page 7: Introduction
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. -
Page 8: Important Information
Important Information Important Information Please keep to the following rules without fail. This will en- sure your personal safety when working, and assure long, trouble-free performance by the instrument. 2.1 For your Safety This instrument has been tested thoroughly and it left the works in a perfectly safe condition. -
Page 9: Ä-Conformity
Multicomponent Force Plate for Biomechanics Type 9287C… ä-Conformity The Force Plate Type 9287C… is conforming to ä direc- tives according to the Declaration of Conformity enclosed with this instruction manual. How to Treat the Instrument The force plate may be used only under the specified environmental and operating conditions ... -
Page 10: Hints For Using The Instruction Manual
Please keep these instruction manual in a safe place where they can be consulted any time. If the instructions get lost, just turn to your Kistler distribu- tor and they will be replaced without delay. All information and directives in these instructions may be modified at any time without prior notification. -
Page 11: General Description Of The Instrument
Multicomponent Force Plate for Biomechanics Type 9287C… 3. General Description of the Instrument 3.1 What does a Multicomponent Force Plate Do? The multicomponent force plate provides dynamic and quasistatic measurement of the 3 orthogonal components of a force (F ) acting from any direction onto the top plate. -
Page 12: Two Different Versions
General Description of the Instrument 3.2 Two Different Versions The force plate 9287C... is available in two versions: Type 9287C with external 8 channel amplifier (e.g. Type 9865…) Type 9287CA with built-in charge amplifier 3.3 Application Examples The force plate is particularly suitable to measure fast actions and impact in sports but it can also be used for a wide range of other applications ... - Page 13 Multicomponent Force Plate for Biomechanics Type 9287C… The electrical charges yielded by the force plate are strictly proportional to the measured quantities. They are converted by charge amplifiers into analog voltages and can then be processed in any way. Negative charges give positive voltages at the output of the charge amplifier, and vice versa.
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Page 14: Design Of The Force Plate
General Description of the Instrument 3.5 Design of the Force Plate The force plate comprises a top plate of sandwich light- weight construction under which the four 3-compo-nent force sensors are mounted under high prestress. This prestress is a prerequisite for transmissing shear forces by friction. -
Page 15: Assembly, Installation And Putting Into Operation
Please refer to the instruction manual 002-034 "Force Plate Installation and Maintenance" for detailed proce- dures and information. For nonobservance of the mounting instructions Kistler will decline all responsibility. Page 12 9287C_002-462e-03.11... -
Page 16: Basic Circuitry And Cabling Of The Measuring System
The following rules should be observed when cabling the measuring rig: Between force plate and charge amplifier the special cables supplied by Kistler must be used Ordinary cables may be used to link the charge amplifi- ers with the display or evaluation instruments ... -
Page 17: Connections With External Amplifier (Type 9287C)
Multicomponent Force Plate for Biomechanics Type 9287C… Connections with External Amplifier (Type 9287C) The following figure shows the elements required for a complete measuring system. Fig. 5: Measuring system with BioWare ® and two force plates Type 9287C Instead of the BioWare software system also other process- ing and indicating instruments can be connected to the charge amplifier. -
Page 18: Output Connector Of Force Plate Type 9287C (With External Amplifier)
Assembly, Installation and Putting Into Operation 4.3.1 Output Connector of Force Plate Type 9287C (with External Amplifier) 1 Masse x1+2 x3+4 y1+4 y2+3 Socket type: 9-pin Fischer DEE 104A055 Important Remarks: It is very important that the correct type of cable be used only ... -
Page 19: Connections With Built-In Amplifier (Type 9287Ca)
Multicomponent Force Plate for Biomechanics Type 9287C… 4.4 Connections with Built-in Amplifier (Type 9287CA) ® Fig. 6: Measuring system with BioWare and two force plates Type 9287CA Instead of the BioWare software system also other process- ing and indicating instruments can be connected to the force plate. -
Page 20: Output Connector Of Force Plate Type 9287Ca (With Built-In Amplifier)
Assembly, Installation and Putting Into Operation 4.4.1 Output Connector of Force Plate Type 9287CA (with Built-in Amplifier) 1 Exct. GND 6 Betrieb 7 Control GND 8 N.C. (reserved) x1+2 10 F x3+4 11 F y1+4 12 F y2+3 13 A' (Range z select) 14 Signal GND 15 N.C. -
Page 21: Cable Type 1759
A cable Type 1759... (90 degree Fischer connector) is avail- able from the force plate Fischer 19 pin connector to a D-Sub 37 pin neg. connector. It provides the following output connector and is compatible with the Kistler BioWare hardware. D-Sub 37 neg. -
Page 22: Digital Control
Assembly, Installation and Putting Into Operation 4.4.3 Digital Control All Digital Inputs are isolated with Opto Couplers: Dig input Control GND Fig. 10: Digital Control input circuit Logical signal Dig. input <4,4 V 5 ... 45 V Table 1: Digital Control input signals Range select group I F (Shear) Range select group II F... -
Page 23: Operation
Multicomponent Force Plate for Biomechanics Type 9287C… Operation Range Selection Below are range recommendations for different appli- cations. It is important that for every application the smallest possi- ble range is chosen. This will take full advantage of the maximum output voltage thus keeping noise and other er- rors the smallest possible. -
Page 24: Balance (Posturography)
Operation 5.2.1 Balance (Posturography) Important: It is imperative the charge amplifier is switched to OPERATE before the subject steps on the force plate. Otherwise Center of Pressure COP can not be calcu- lated correctly. Time Constant Some charge amplifiers have a time constant (TC) function. A time constant is a high pass filter (AC mode) which al- lows dynamic measurement without the static (DC) com- ponent. -
Page 25: Temperature Influences
Multicomponent Force Plate for Biomechanics Type 9287C… Temperature Influences The temperature coefficient of the sensitivity is negligibly small (sensitivity change with temperature, the entire force plate being at the same temperature). Temperature gradients on the other hand give rise to an error signal in the form of drift. -
Page 26: Surface Pressure
Operation Surface Pressure Please note that the surface pressure of the top plate is lim- ited to 5 N/mm . If this surface pressure is exceeded, the sandwich structure inside the top plate breaks down and the force plate is instantly destroyed. To get a feeling for this: The full range of 20 kN can be applied on a diameter of 70 mm. -
Page 27: Maintenance
Multicomponent Force Plate for Biomechanics Type 9287C… Maintenance The multicomponent force plate Type 9287C... is a de- pendable instrument requiring virtually no maintenance. To ensure long and reliable operation of the force plate, please read the next two sections. Recalibration of the Instrument The four 3-component force sensors in the force plate have quartz sensing elements. -
Page 28: System Check
Zero offset Drift Correct "amplification" ratio Charge [pC]/[Voltage V] This task needs special equipment and Kistler trained ser- vice personnel. Zero offset and drift tests can be done using the "voltme- ter" function of BioWare or any other software or voltme- ter directly at the analog output pins. -
Page 29: Calibration Of The Force Plate
Keep the connector meticulously clean. If necessary clean the plug and socket of the force plate or connecting cable with Kistler cleansing and insulating spray Type 1003 or rectified benzene if it is contaminated or the insulation re- sistance is bad (<1 TΩ). -
Page 30: Cleaning And Sterilization
Maintenance Cleaning and Sterilization In principle, because of the usual high temperatures sterili- zation of the force plate is not permissible. Instead of it we recommend the application of a mild, watersoluble clean- sing or disinfecting agent (clinically tested) with a pH-value 6 ... -
Page 31: Trouble Shooting
Defective Force Plate Proceed as follows if your force plate is defective: Contact your Kistler distributor and advise him that you are sending in the defective instrument Send the defective force plate in its original packing to your Kistler distributor ... -
Page 32: Technical Data
Technical Data Technical Data Dimensions Fig. 12: Dimensions and connection of the multicomponent force plate Type 9287C... 9287C_002-462e-03.11 Page 29... -
Page 33: Technical Data For Type 9287C
Multicomponent Force Plate for Biomechanics Type 9287C… Technical Data for Type 9287C Range –10 ... 10 –10 ... 20 Overload –13/13 –10/25 Calibrated range 0 ... 10 0 ... 20 Calibrated partial range 0 ... 1 0 ... 2 Threshold <0,05 –7,5 Sensitivity (nominal) -
Page 34: Mechanical And Environment
8.2.1 Mechanical and Environment Distance of force plate surface from x-, y-plane –52 Distance of sensor axis from y-axis Distance of sensor axis from x-axis Tightening torque of fastening screws M12x25 N·m Weight (without mounting frame) Surface pressure N/mm 5 (see also chapter 5.7) Material: Top plate... -
Page 35: Technical Data For Type 9287Ca
Multicomponent Force Plate for Biomechanics Type 9287C… Technical Data for Type 9287CA 8.3.1 General Nominal Range 1 (per channel) N/5V 125 N/5V 250 Nominal Range 1 (summed) 250 1 000 Ratio Range 1 : 2 : 3 : 4 1 : 5 : 10 : 20 Range switching accuracy <±0,5 Mechanical overload... -
Page 36: Mechanical And Environment
Technical Data 8.3.2 Mechanical and Environment –52 Distance of force plate surface from x-, y-plane Distance of sensor axis from y-axis Distance of sensor axis from x-axis N·m Tightening torque of fastening screws M12x25 Weight (without mounting frame) N/mm 5 Surface pressure (s. -
Page 37: Built-In 8 Channel Charge Amplifier
Multicomponent Force Plate for Biomechanics Type 9287C… 8.3.4 Built-In 8 Channel Charge Amplifier Fig. 13: Built-in 8-channel charge amplifier Page 34 9287C_002-462e-03.11... -
Page 38: Center Of Pressure Cop Accuracy
Technical Data 8.4 Center of Pressure COP Accuracy The distribution of the applied force into the four sensor elements can be used to calculate back to the center of pressure (COP or point of force application) expressed by its coordinates a and a The accuracy of the calculated COP coordinates depends on:... -
Page 39: Cop Correction Algorithm For Force Plates
3.5 using the following algo- rithm. Remarks The coefficients apply only if the force plate is mounted on a rigid foundation according to Kistler specifications (mounting frame or steel plate grouted on concrete foundation). Formulae... -
Page 40: Frequency Response
Technical Data Frequency Response x direction Fig. 16: Frequency response x direction y direction Fig. 17: Frequency response y direction z direction Fig. 18: Frequency response z direction See also chapter 5.4 "Effective Frequency Range". 9287C_002-462e-03.11 Page 37... -
Page 41: Glossary
There are two different coordinate systems in use. In these instruction manuals, the Kistler coordinate system is need exclusively. 9.1.1 Kistler Coordinate System The following coordinate system is used for all Kistler force plates. Fig. 19: Kistler coordinate system Page 38... -
Page 42: Isb Coordinate System
Glossary 9.1.2 ISB Coordinate System The ISB (International Society of Biomechanics) proposes the following coordinate system: Fig. 20: ISB coordinate system In the ISB-system not the active (acting) but counteracting (reacting) forces are described. The ISB coordinate system is used above all in connection with comprehensive move- ment analyses. -
Page 43: Warranty
Multicomponent Force Plate for Biomechanics Type 9287C… 10. Warranty Regarding the warranty reference is made to the agree- ment between the respective contracting parties. Page 40 9287C_002-462e-03.11... -
Page 44: Declaration Of Conformity
Declaration of Conformity 11. Declaration of Conformity EG-Konformitätserklärung EC Declaration of conformity / Déclaration de conformité CE Hersteller Kistler Instrumente AG Manufacturer / Fabricant CH-8408 Winterthur erklärt, dass das Produkt declares that the product / déclare que le produit Name /... - Page 45 Multicomponent Force Plate for Biomechanics Type 9287C… With external amplifier Force Plate Cable Amplifier Data Acquisition Type 9281E Type 1686A... Type 9865E... Type 5691A1 with cable Type 1769A Type 9285 Type 1685B... Type 9286B Type 1685B... Type 2812A… Type 9287C Type 1686A...
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