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瑞士奇石樂(lè)Kistler9257B三向測(cè)力儀
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瑞士奇石樂(lè)Kistler9257B三向測(cè)力儀
Type9257B
Quartz three-component dynamometer for measuring the three orthogonal componentsofaforce. Thedynamometer hasagreatrigidity andconsequentlyahighnaturalfrequency. Itshigh resolution enables the smallest dynamic changes in largeforcestobemeasured.
•Universalapplicable
•Forcuttingforcemeasurements
•Stableandreliable
Description
The dynamometerconsists of four three-componentforce sensors fitted under high preload betweenabaseplate and atopplate. Eachsensorcontains three pairsofquartz plates, onesensitivetopressure inthezdirectionandtheother two responding toshearin thex andy directionsrespectively.The forcecomponents aremeasuredpracticallywithout displace- ment.
Theoutputsofthe fourbuilt-inforcesensors areconnected insidethe dynamometerinaway to allowmulticomponent measurementsofforcesand momentstobeperformed. The eight outputsignalsare available at the 9-conductor flange socket.
The four sensors are mounted ground-insulated.Therefore ground loopproblemsarelargelyeliminated.
Thedynamometerisrustproof andprotectedagainstpenetra- tionofsplashwaterandcoolingagents.Togetherwiththecon- nectingcableType1687B5/1689B5andType1677A5/1679A5 itcorrespondstotheprotectionclassIP67.
Aspecial thermal isolation coating isintegratedinthe top plate which renders the dynamometerlargely insensitive to temperatureinfluences.
ApplicationExamples
•Dynamicandquasistaticmeasurementofthethreeorthogo- nalcomponentsofaforce
•Measuring cuttingforcewhenturning, milling,grindingetc. Inconjunction with the calibrated partial ranges the high sensitivityandlowthreshold allowexactmeasurementson smalltoolsandwhengrinding.
•Measurementsonscalemodelsinwindchannels
TechnicalData
Range Fx,Fy,Fz FzforFxandFy≤0,5Fz Fz | kN kN | –5...51) –5...10 2) |
Calibratedpartialrange1 Fx,Fy Fz | N N | 0...500 0...1000 |
Calibratedpartialrange2 Fx,Fy Fz | N N | 0...50 0...100 |
Overload Fx,Fy,Fz FzforFxandFy≤0,5Fz Fz | kN kN | –7,5/7,5 –7,5/15 |
Threshold | N | <0,01 |
Sensitivity Fx,Fy Fz | pC/N pC/N | ≈–7,5 ≈–3,7 |
Linearity,allranges | %FSO | ≤±1 |
Hysteresis,allranges | %FSO | ≤0,5 |
Crosstalk | % | ≤±2 |
Rigidity cx,cy cz | kN/μm kN/μm | >1 >2 |
Naturalfrequency fn(x,y,z) | kHz | ≈3,54) |
Naturalfrequency fn(x,y) (mounted onflanges) fn(z) | kHz kHz | ≈2,34) ≈3,54) |
Operatingtemperaturerange | °C | 0...70 |
Capacitance Fx,Fy,Fz | pF | ≈220 |
Insulationresistance(20°C) | Ω | >1013 |
Groundinsulation | Ω | >108 |
Protection classEN60529 | – | IP673) |
Weight | kg | 7,3 |
Clampingarea mm | 100x170 | |
Connection | Fischerflange, 9pol.neg. |
1) Applicationofforceinsideandmax.25mmabovetopplatearea
2) Rangeforturning, application offorceatpointA
3) WithconnectingcableTypes1687B5,1689B5,1677A5, 1679A5
4) Without toolholderType9403