Level-measuring circuit of a laser tilt meter

Details Level-measuring circuit of a laser tilt meter Level-measuring circuit of a laser tilt meter

2006-01-24

2006-01-24

Fulton, Christopher W. (Department: 2859)

Geometrical instruments

Straight-line light ray type

Level

C033S286000

Reexamination Certificate

active

06988319

ABSTRACT:
A signal sampling circuit of a tilt sensor, suitable to be used in a tilt sensor, is described. The signal sampling circuit has a signal-generating module, a sample and hold module, and a differential module. The signal-generating module regularly generates a plurality of level-measuring signals at equally timed intervals and unidirectionally and alternately sends them to the first input pin and the second input pin of the tilt sensor, respectively. Then, the tilt sensor sequentially outputs the corresponding first and second output signals. The sample and hold module alternately samples and holds the first and the second output signals and outputs the first and the second sampling signals, respectively. The differential module receives and differentiates the first and the second sampling signals and outputs a level-estimating-result signal to a micro-controller unit to derive the tilt information of one direction.

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patent: 2004/0187326 (2004-09-01), Yung et al.

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