Pressure transmitter
一种压力传感器(20,21,60,150,190,200,201)具有带外壁(64,154)以提供热阻(66)的传感器外盒(22,62,152)。外壁(64,154)从在第一端(70)处的同温岛(68,156)延伸至第二端(74)处的热沉热岛(72,159)。同温岛(68,156)包括流体入口(38,76,158,202)和压力及温度敏感元件(34,78,164;42,80,166)。热沉热岛(72,159)包括基本热负载部件(40,41,110,174),它向电连接器的外壳(104,170)沉降热量。电连接器(102,168)的接触器(24,26,108,172)承受传感器控制的电流,并由基...
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Sprache: | chi ; eng |
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Zusammenfassung: | 一种压力传感器(20,21,60,150,190,200,201)具有带外壁(64,154)以提供热阻(66)的传感器外盒(22,62,152)。外壁(64,154)从在第一端(70)处的同温岛(68,156)延伸至第二端(74)处的热沉热岛(72,159)。同温岛(68,156)包括流体入口(38,76,158,202)和压力及温度敏感元件(34,78,164;42,80,166)。热沉热岛(72,159)包括基本热负载部件(40,41,110,174),它向电连接器的外壳(104,170)沉降热量。电连接器(102,168)的接触器(24,26,108,172)承受传感器控制的电流,并由基本热负载部件(40,41,110,174)传导所述电流的一部分。电路板(120,176)控制电流,以表示压力。一个高精度的、温度得到补偿的电流输出表示压力。
A pressure transmitter with a transmitter housing having an outer wall providing thermal resistance. The outer wall extends from an isothermal island at a first end to a heat sink island at a second end. The isothermal island includes a fluid inlet, and pressure and temperature sensors. The heat sink island includes a primary heat load device that is heat sunk to an outer shell of an electrical connector. The connector contacts carry a current controlled by the transmitter, and a portion of the current is conducted by a primary heat load device. A circuit board controls the current to represent the pressure. A high accuracy, temperature compensated current output represents pressure. |
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