Static characteristics of the sensor means between the static input signal, the output of the sensor and the input has the relationship. Because then both input and output and time-independent, so the relationship between them, an angle sensor, namely the static characteristics of the sensor can be used without a time variable algebraic equations, or to enter the amount as X-axis, to the corresponding output characteristic curve plotted as ordinate and described. The main parameter characterizing the sensor static characteristics are: linearity, sensitivity, hysteresis, repeatability, drift. Capacitive level sensor consists of a capacitive sensor and an electronic module circuit, it is a two-wire 4 ~ 20mA constant current output as the base type, sensor size, after conversion, it can output three-wire or four-wire mode, the output signal is formed to 1 ~ 5V, 0 ~ 5V, 0 ~ 10mA and other standard signals. Capacitive sensor consists of insulated electrode and the cylindrical metal container filled with the measuring medium components. When the material level rises, Guiyang sensor, because the dielectric constant of the non-conductive material is significantly less than the dielectric constant of air, so the capacitance change with altitude change material. Module circuit sensor by the reference source, pulse width modulation, conversion, constant current amplification, feedback and current limiting unit. The advantage of using the principle of pulse width modulation special measure is to lower frequencies, radio frequency interference on the surrounding elements, good stability, good linearity, no significant temperature drift. Distance sensors | Guiyang sensor | Xinfeng Xinfeng sensor provided by the Xinxiang purification technology Limited. Xinxiang City, Xinfeng purification Sensing Technology Co., Ltd. (www.xfcgq.com) (www.xfcgjh.com) strong, credible, in Xinxiang sensor industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement will lead Xinfeng innovative ideas into the brilliant and you work for a better future!