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, namely the static characteristics of the sensor can be used without a time variable algebraic equations, or to enter the amount as X-axis, the amount for the corresponding output The ordinate of the characteristic curve drawn described. The main parameter characterizing the sensor static characteristics are: linearity, sensitivity, hysteresis, repeatability, drift. Hall voltage changes with changes in magnetic field strength, the stronger the magnetic field, the higher the voltage, the weaker the magnetic field, the lower the voltage. Hall voltage value is very small, typically only a few millivolts, but amplified by the integrated circuit can be enough so that the output voltage is amplified to a stronger signal. Ruoshi Hall effect sensor integrated circuits play, need to use mechanical means to vary the magnetic field strength. The method shown in the following figure is a rotating wheel as a control flux sensor switch filter selection, when the impeller vanes in the air gap between the magnet and the Hall IC sensor in the filter, integrated on-chip magnetic deviation diesel filter sensors, Hall voltage disappears. Thus, the change in output voltage of the Hall IC can be expressed impeller shaft at a position, take advantage of this principle of cleaner water level sensor can be a Hall effect IC chip with the ignition timing sensor. Hall-effect sensor is a passive sensor, it must have external power supply to work, a feature that enables it to detect low speed functioning. Filters Sensors Filter sensor _ _ Xinfeng Xinfeng sensor provided by 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!