On site calibration of linear displacement sensors
This paper describes how to calibrate all kinds of fixed line displacement sensors used in the field by the standard measuring block of grade 4(or grade 5 accuracy)and self-made fixture.Through online calibration,it can eliminate the risk of system error of the whole machine caused by only sending the sensor,and greatly reduce the labor cost,time cost and damage to the sensor caused by regular dis-assembly and assembly,so as to achieve the real sense of the whole machine system calibration,so that the obtained measurement value is more reflective of the technical performance of the whole machine,more accurately measure the system error of the whole machine,and meet the process requirements and improve the level and ability of online detection of measuring equipment.Through comparative analysis of several cycles of experimental data,the reliability and accuracy of the calibration method are verified,which provides a reference for online calibration of other measuring instruments.
linear displacement sensorson site calibrationsystematical errorverify
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