Piezoelectric quartz level sensor

Details Piezoelectric quartz level sensor Piezoelectric quartz level sensor

2007-09-29

2009-10-20

Smith, R. A. (Department: 2841)

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

C033S365000

Reexamination Certificate

active

07603786

ABSTRACT:
The present invention relates to a new piezoelectric quartz level sensor mainly applied in the attitude stabilized and control system of the aircraft, robot, vehicle, ship, oil drilling platform, construction, industrial automation equipment, radar, and satellite, comprising a sensitive element, signal processing circuit, base, outer case and socket. The piezoelectric quartz level sensor transfers the deflection angle of the object to the force exerted on two symmetrical mounted round piezoelectric quartz wafers, and then utilizing the prominent force sensitivity of the piezoelectric quartz, the level attitude parameter of an objected can be detected through the frequency variation due to the force exerted on the two piezoelectric quartz wafers. Therefore, the present invention can satisfy the demand of high stability and resolution, low non-linear degree, quick start time, wide measuring range and operating temperature, good ability to resist shock, and digital output.

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patent: 6536123 (2003-03-01), Tamura
patent: WO 03/087719 (2003-10-01), None

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