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1.高精度压力传感器美国Robinson-Halpern公司宣称它的144A系列高精度压力传感器可检测强腐蚀性的液体和气体的压力,可直接测量生产过程的压力、发动机的压力等,其精度为±0.1％。此类传感器分电压输出和电流输出两种。电压输出单元具有低输出阻抗(小于1Ω)性能,而电流输出单元则为高输出阻抗(大于3MΩ)。其量程有12种,压力范围从0～10磅/时～2到0～10000磅/时～2而电流量程从1～5mA和4～20mA。其中有些传感器可装上过载保护装置,过载量为150％～200％,它不会损坏单元装置或导致校验误差。传感器的测量元件为MOnel合金波登管,亦可用不锈钢弹簧。
1. High-precision pressure sensor The United States Robinson-Halpern announced that its 144A series of high-precision pressure sensor can detect highly corrosive liquid and gas pressure, can directly measure the pressure of the production process, the engine pressure, the accuracy of ± 0.1 %. This type of sensor sub-voltage output and current output of two. The voltage output unit has a low output impedance (less than 1Ω) while the current output unit has a high output impedance (greater than 3 MΩ). The range of 12 species, the pressure range from 0 to 10 pounds / hour ~ 2 to 0 to 10,000 pounds / hour ~ 2 and the current range from 1 ~ 5mA and 4 ~ 20mA. Some of these sensors can be equipped with overload protection devices with overloads of 150% to 200%, which do not damage the unit or result in calibration errors. The measuring element of the sensor is a MOnel alloy Bourdon tube, stainless steel spring is also available.