Electronic level indicator

Details Electronic level indicator Electronic level indicator

1989-12-15

1991-07-02

Cuchlinski, Jr., William A.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

324676, 324710, G01C 906

Patent

active

050275224

ABSTRACT:
An electronic level indicator, having a housing including at least one planar surface, a gravity responsive sensor mounted on the housing, the sensor constituting at least a part of two branches of an electronic bridge circuit, a pulse generator coupled to the bridge circuit for feeding the bridge circuit with short pulses, a differential amplifier connected to the output of the bridge circuit, an A/D converter connected in circuit for receiving signals from the amplifier and a display unit connected to the output of the converter for displaying numerical data indicative of the inclination of the planar surface.

REFERENCES:
patent: 3227951 (1966-01-01), Dykaar
patent: 4167818 (1979-09-01), Cantarella et al.
patent: 4208625 (1980-06-01), Piso
patent: 4549277 (1985-10-01), Brunson et al.
patent: 4858331 (1989-08-01), Maus

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