Displacement sensor
A displacement sensor, displacement technology, applied in the direction of converting sensor output, instrument, displaying liquid level indicator through pressure measurement, etc., can solve problems such as small gas pressure
Inactive Publication Date: 2002-07-10
TECHNO EXCEL CO LTD
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Problems solved by technology
[0022] The present invention is aimed at these problems existing in the prior art, and its purpose is to provide a gas pressure change that can absorb swings, etc., and can adjust the initial oscillation frequency without adding high-cost components. When the original oscillation frequency is replaced with a metal member that can be recycled, the small gas pressure can be detected only by deleting the compression coil spring, and the sensitivity (resolution) of frequency conversion can be improved only by attaching a metal plate to the lower case The versatile displacement sensor
Method used
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Embodiment Construction
[0050] Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0051] FIG. 1 is a front cross-sectional view of the displacement sensor detection unit 11 according to the first embodiment of the present invention when the vibrating piece 47 is not displaced. FIG. 2 is a front cross-sectional view of the displacement sensor detection unit 11 according to the first embodiment of the present invention when the vibrating piece 47 is displaced to the maximum. FIG. 3 is a reference front cross-sectional view of the displacement sensor detection unit 11 according to the first embodiment of the present invention. Figure 4 It is a reference enlarged front cross-sectional view of AA portion in FIG. 3 .
[0052]The displacement detecting part 11 of the displacement sensor of the first embodiment of the present invention includes: an upper housing (such as a resin-molded member such as PP tree finger, etc.) 20; Components, etc.) 30; a...
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A displacement sensor provided with a displacement detecting section includes: a upper case; a screw section and a bolt shaped cylindric magnetic member moveable along the axis direction of an oscillation coil which are bolted to the top of the upper case; an oscillation coil supported by a vibrating reed reinforcing plate with its winding holes corresponding the lower wall of the magnetic member; a vibrating reed reinforcing plate which is interlocked with a vibrating reed and moveable along the axis direction of an oscillation coil in the upper case; a compressing screw spring for elastically forcing the upper case and the vibrating reed reinforcing plate; a circle vibrating reed which is provided below the vibrating reed reinforcing plate between the upper case and the lower case, making axis direction displacement of the oscillation coil under the gas pressure in a compressing chamber; a lower case engaged with the upper case, composing the compressing chamber with the vibrating reed. The purpose of present invention is to absorb gas pressure alteration caused by swinging, adjust the initial oscillation frequency without mounting additional components, and detect a micro gas pressure only by removing the compressing screw spring.
Description
technical field [0001] The present invention relates to an LC oscillation displacement sensor, which converts the gas pressure introduced into a pressurized chamber composed of a lower housing and a soft actuating member (such as a wind housing, a vibrating plate) into the displacement of the soft actuating member, and converts the The displacement of the soft actuating member is converted into a frequency and output as a rectangular wave oscillation. Specifically, it relates to improvement of absorption of gas pressure fluctuations caused by vibrations and vibrations of household appliances equipped with displacement sensors, improvement of adjustment of initial oscillation frequency, improvement of recirculation, improvement of detection of micro-pressure gas pressure, Improvement of sensitivity (resolving power) of frequency conversion. Background technique [0002] For a long time, it has been used to detect air pressure in the measurement object chamber (such as the ai...
Claims
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IPC IPC(8): G01F23/16D06F33/02G01B7/04G01D5/12G01D5/248G01L7/10G01L9/10G01L19/14H01L29/84
Inventor ιζ¨δΈζ
Owner TECHNO EXCEL CO LTD