Kaman Extreme Environment Sensors Manual do Utilizador descarregar pdf (Página 7)

High Temperature Displacement System

During factory calibration the grounding was maintained via the electronics only.

Further grounding along the cabling or sensor should have minimal effect on the

sensitivity since special high temperature cabling was developed to alleviate this

effect.

Careless handling of the sensor either directly during installation or indirectly during

operation may seriously damage the sensitive front portion of the sensor. Impinging

high velocity debris, including bulk contaminants, may be as injurious as an

impacting target.

The standard "zero" calibrated displacement is the offset as listed in appendix A from

the front of the sensor for safety. This offset can be modified or eliminated by

recalibration. Calibration data furnished with each sensor lists output voltage versus

the absolute displacement values from the face of the sensor. Sensitivity and

linearity performance at elevated temperatures are similar the ambient temperature

record except for a zero shift related to the sensing technique and the properties of

the target material. Typical performance curves for some standard targets are shown

in figures 4, 5, and 6.

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Kaman Extreme Environment Sensors Manual do Utilizador Página 7