发明授权
US3992945A Bourdon pressure gauge having direct-coupled electronic and visual
readout
失效
波登压力表具有直接耦合的电子和视觉读数
- 专利标题: Bourdon pressure gauge having direct-coupled electronic and visual readout
- 专利标题(中): 波登压力表具有直接耦合的电子和视觉读数
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申请号: US583889申请日: 1975-06-05
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公开(公告)号: US3992945A公开(公告)日: 1976-11-23
- 发明人: Sherwood P. Judson
- 申请人: Sherwood P. Judson
- 申请人地址: CT Bridgeport
- 专利权人: American Chain & Cable Company, Inc.
- 当前专利权人: American Chain & Cable Company, Inc.
- 当前专利权人地址: CT Bridgeport
- 主分类号: G01L9/00
- IPC分类号: G01L9/00 ; G01L9/02 ; G01L7/04
摘要:
A Bourdon pressure gauge is provided with a direct-coupled electronic and visual readout. Specifically, the electronic and visual readouts are direct-coupled in that they are taken along a common linkage from the Bourdon tube. In addition, they are of comparable accuracy because the electrical readout is taken at a point of relatively small displacement amplification on the commmon linkage whereas the visual readout is taken at a point of substantial displacement amplification. In a preferred embodiment, the Bourdon tube is linked to a pivotally mounted linkage element having a cam head for driving a helicoidal gear. An electrical contact in cooperation with resistor disposed on the pivotally mounted element is used to take a variable resistance electrical readout, and a pointer for taking a visual readout is connected to the helicoidal gear. Circuitry is provided for producing an electrical current proportional to the pressure sensed by the tube, and the visual readout provides a readily accessible check on the accuracy of the electrical readout.
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