Measuring apparatus

Details Measuring apparatus Measuring apparatus

1984-01-13

1985-04-23

Little, Willis

Geometrical instruments

Area integrators

Electrical

33174L, G01B 702, G01B 1102

Patent

active

045120838

ABSTRACT:
A measuring system for measuring the relative position of two objects, which includes a transducer for converting a mechanical input into an analog electrical signal, is provided with a trigger stage and a reference signal stage. An analog electrical signal generated by the transducer is applied to one input of the trigger stage and to the input of the reference signal stage. The reference signal stage operates to generate a reference signal which is dependent upon the analog signal and is applied to the second input of the trigger stage. The trigger stage generates a trigger signal at its output in response to a change in the analog signal resulting from a change in the mechanical input magnitude.

REFERENCES:
patent: 3234655 (1966-02-01), Skeels et al.
patent: 3615143 (1971-10-01), Barr et al.
patent: 3828439 (1974-08-01), Ishikawa et al.
patent: 4109200 (1978-08-01), McNulty
patent: 4110611 (1978-08-01), Tann et al.
patent: 4143267 (1979-03-01), Johnson et al.
patent: 4338722 (1982-07-01), Delmas

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