应用领域： 
正广泛应用于电力、石油化工、冶金等行业的汽轮机、水轮机、发电机、鼓风机、压缩机、齿轮箱等设备的位移、振动、转速、油膜厚度等参数的在线监测与故障诊断。 广泛应用于电力、石油、化工、冶金等行业和一些科研单位。对汽轮机、水轮机、鼓风机、压缩机、空分机、齿轮箱、大型冷却泵等大型旋转机械轴的径向振动、轴向位移、键相器、轴转速、胀差、偏心、以及转子动力学研究和零件尺寸检验等进行在线测量和保护。 

探头头部采用耐高低温和各种化学腐蚀的聚苯硫醚(PPS)注塑成形保护，线圈被严格密封；电路采用防酸碱不锈钢螺纹圆管和环氧树脂封装，防潮、防尘；信号电缆采用屏蔽电缆，可选用不锈钢金属软管铠装保护；具有电源极性、输出短路多种保护功能，任意接线错误不会损坏；可在恶劣环境下长期连续工作。 
1非接触测量，*磨损。 
2抗干扰能力强，高可靠性，长寿命。 
3工作温度：-50～+120℃，温漂0.05%/℃。 
4输出形式：三线制电压或电流输出。 
5频响：0～10kHz，幅频特性0～1kHz衰减小于1％，10kHz衰减小于5％；相频 
特性0～1kHz相位差小于-10°，10kHz相位差小于-100° 
6电压输出形式传感器供电电源：+12Vdc～ +30Vdc，输出范围0.1～10.5V或1～   
5V，功耗≤12mA(不含输出电流)；电流输出形式传感器供电电源：+18Vdc～ +30Vdc, 4～20mA电流输出, 功耗 ≤12mA(不含输出电流)。     
7、纹波（测量间隙恒定时zui大输出噪声峰峰值）：电压输出形式的传感器输出纹波不大于20mV；电流输出形式的传感器输出纹波不大于30uA。 
8、负载能力：电压输出形式的传感器输出阻抗不大于10Ω，zui大电流40mA，zui大驱动信号电缆长度300m；4～20mA电流输出形式的传感器zui大负载电阻不小于750Ω，带zui大负载电阻时输出变化-1%。 

The sensor (hereinafter referred to as a sensor) can measure the relative position of the measured body (which must be a metal conductor) and the end of the probe. Because of its non-contact measurement, long-term high reliability, high sensitivity and strong anti-interference ability, fast response, no influence of oil and water, is often used for long-term real-time monitoring of the parameters of the axial displacement, large rotating machinery shaft vibration, shaft speed, working condition and fault reasons can be divided into precipitation equipment, protection and predictive maintenance of equipment effectively. The displacement, amplitude, speed, size, thickness, surface unevenness and so on can be measured. From the theoretical analysis of rotor dynamics and bearing science, the running state of large rotating machinery is mainly determined by its core rotating shaft. The eddy current displacement sensor can directly measure the state of the rotating shaft, and the measurement results are reliable and credible.

A brief introduction to Section 1
The leading technology of the JX20 series of eddy current displacement sensors:
1, "the matching of the optimum temperature stability parameters of the coil" ensures a good temperature stability of the probe.
2, adopt the new PPS engineering plastics through the "two times injection molding" process, ensure good sealing, dimensional stability and interchangeability of the probe, and extend the working temperature range to -50 C to +175 C.
3, "deformation joint" process combination, higher intensity and reliability of the probe.
4, the technology of "deep negative feedback stable resonant circuit" makes the stability of the preposition (0.05%/, 0.02%/).
5. Design and production according to the standard of the United States, the prefix can work for a long time in the environment of -50 ~ +105.
6. Fault tolerance design is adopted in the predevice circuit to ensure that any connection error will not be damaged.
7. The preposition device uses the latest electronic technology, and the power consumption is less than 12mA.
8, the front part housing is made of die casting technology, high frequency socket concave and wiring terminal mosaic protection, engineering plastics isolation insulation and other structures, so that the front end device is more sturdy, and the installation and use are more convenient.