Network-connectable displacement sensor with stored ID

Details Network-connectable displacement sensor with stored ID Network-connectable displacement sensor with stored ID

1995-04-03

1998-03-10

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Displacement

32420724, G01B 714, G01R 3300

Patent

active

057265674

ABSTRACT:
A displacement sensor comprises a measuring head which measures displacement by variation in frequency of an oscillator due to movement of a core in a coil. The signal from the oscillator is used to gate a high frequency crystal clock into a counter. The count is representative of the change in frequency of the oscillator and thus the displacement to be measured. The count is compared by a microprocessor with a look-up table stored in the memory during initial calibration. The operating and processing electronics connected to the sensor head are mounted in a connector which can be directly coupled to connectors of other sensors to form a bus connecting multiple sensors to a data logger or computer.

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patent: 5006797 (1991-04-01), Smith

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