Non-contact Thickness/Displacement Meter FAQ

The influence of the VE series Gap Detector, when there are changes on environmental temperature

If the environmental temperature changes, the sensor will extends and the measurement error occurs. Also, you should consider the extension of fixing jig.

 

 

1.The influence of the sensor extension

The following formula shows the difference of measurement range which refers to the sensor temperature difference. The operating temperature range for measurement accuracy is 23±2°C.

 


 

 

 

2. The influence of the fixing jig extension

 

The fixing jig extension influenced straight to the measurement accuracy. Please consider the expansion rate of the object to be used for the fixing jig, and then process the jig design and operating temperature range control.

 

 

Example

If the jig X changes ΔX in length, the measurement thickness is ΔX thinner than the true value.

 

 

Revised:2011/04/18


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