Electronic inclination gauge

Details Electronic inclination gauge Electronic inclination gauge

1978-02-03

1979-09-18

Phillips, Charles E.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

G01C 906

Patent

active

041678184

ABSTRACT:
An inclination gauge that includes a bar placeable against a surface to be gauged to determine the degree to which the surface is inclined with respect to the horizontal or vertical axis and to provide a readout in digital as well as in analog terms. Mounted on the bar is a gravity-sensing potentiometer coupled to a balancing circuit to produce an analog output voltage which has a null value when the bar is placed against a horizontal or vertical surface and which has a magnitude and polarity or phase that depends on the extent and direction of the deviation from the norm when the surface being gauged is inclined. The analog voltage is converted into a corresponding digital value that is applied to a digital display. Also mounted on the bar are conventional spirit level tubes, one being arranged for horizontal and the other for vertical gauging. Thus the user of the gauge can observe the displacement of the air bubble in each tube from a null position and thereby obtain an analog reading of inclination, whereby analog and digital readings are concurrently presented on the same bar.

REFERENCES:
patent: 2511525 (1950-06-01), Bradwell et al.
patent: 3171213 (1965-03-01), Swarts et al.
patent: 3172212 (1965-03-01), Pappas
patent: 3786472 (1974-01-01), Scopacasa
patent: 3869805 (1975-03-01), Dieringer
patent: 3911592 (1975-10-01), Crask
patent: 4028815 (1977-06-01), Buckley et al.
patent: 4121347 (1978-10-01), Thele

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