Abstract
The invention discloses a high-temperature resistant ultrahigh pressure sensor of a self-reinforced cylindrical double-liquid-cavity structure. The high-temperature resistant ultrahigh pressure sensor comprises a base, a support sleeve is connected to the base and provided with a lower liquid charging hole, a pressure bearing cylinder is arranged in the support sleeve, a pressure bearing hole of the pressure bearing cylinder is aligned with a through hole of the base, a sintering base is connected to the support sleeve, a sintering hole is formed in a lower step hole table of the sintering base, a lower step hole is communicated to an upper step hole through a liquid through hole, an upper liquid charging hole is formed in the side wall of the upper step hole, a sintering column is fixed in the sintering hole, a top cover is connected to the sintering base, a sensitive element is attached to the step face of the lower step hole, a Wheatstone bridge on the sensitive element is connected to an external circuit through the sintering column, a lower liquid cavity is formed by a cavity defined by the pressure bearing cylinder, the base, the support sleeve, the lower step hole and the sensitive element, an upper liquid cavity is formed by a cavity defined by the top cover, an upper step hole, the liquid through hole and the sensitive element, and the upper liquid cavity and the lower liquid cavity are filled with compressible liquid. The double-liquid-cavity structure forms a high-temperature compensating structure, and the measurement error is overcome.
| Titel in Übersetzung | High-temperature resistant ultrahigh pressure sensor of self-reinforced cylindrical double-liquid-cavity structure |
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| Originalsprache | Chinesisch (vereinfacht) |
| Veröffentlichungsnummer | CN104535250A |
| Publikationsstatus | Veröffentlicht - 2014 |