Life according to the classification of substances used in their receptors can be divided into: microbiological sensors, immune sensors, sensor tissue, cell sensor, biosensor, DNA sensors. In accordance with the principle of the sensor device detects classification, can be divided into: thermal biosensors, FET biosensor, piezoelectric biosensors, optical biosensor, acoustic channel biosensors, enzyme electrode biosensor mediator biosensors. Biologically sensitive materials according to the type of interaction classification, sensor types can be divided into pro and type and metabolic type two. Sensitivity generally chosen within the linear range of the sensor, the sensor Ningxia, hoping the higher the better sensitivity of the sensor. Because only when high sensitivity, and the value measured by the corresponding change in the output signal was relatively large, sensors classification, in favor of signal processing. But note that the high sensitivity of the sensor to be measured independent of outside noise is also easy to mix, amplification system will be enlarged, high-quality sensors, affect measurement accuracy. Therefore, the requirements of the sensor itself should have a high signal to noise ratio, to minimize the interference signal introduced from outside. Sensitivity of the sensor is directional. When measuring the amount of a one-way, and the higher its directivity requirements, you should choose the other direction sensitivity of the small sensor; if the measure is a multidimensional vector, require cross-sensitivity sensor as small as possible. Quality sensors, Xinfeng (online consultation), Ningxia sensor provided by Xinxiang City Xinfeng purification Sensing Technology Co., Xinxiang City, Xinfeng purification Sensing Technology Co., Ltd. (www.xfcgq.com) (www.xfcgjh.com) is a leader in Xinxiang, sensors, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. In Xinfeng leadership with the staff warmly welcome all inquiries negotiations to create a better future Xinfeng.