The main purpose of editing proximity switch in aviation, space technology and industrial production have a wide range of applications. In everyday life JM18L-Y8K, such as automatic doors in hotels, restaurants, garage, automatic hot air on both applications. In terms of security, security, such as data files, accounting, finance, museum, treasury and other powerhouse, are usually equipped with anti-theft device composed by a variety of proximity switches. In the measurement technology, such as length, position measurement; in control technology, such as displacement, velocity, acceleration measurement and control JKL31-M4I 5B, also the use of a large number of proximity switches. Technical indicators detect movement distance measuring 2.1; when the action film from the front close proximity switch sensing face, so close to the switching distance of the proximity switch maximum operating distance, measured data should be within the parameters of the product. 2.2 Determination of the release distance; when operating piece from the front left of the proximity switch sensing surface, the switch is released by the movement into, action film was measured maximum distance away from the sensing surface. 2.3 Determination of H hysteresis; the absolute value of the difference between the maximum operating distance and the distance of the release. 2.4 Determination of the operating frequency; bakelite disc drive with variable speed motors, a fixed number of steel on the disc, switch to adjust the distance between the sensor surface and action films, and is about 80% JC-D5PK switching distance, turn round dish, turn to make an action movie close proximity switch on the disc spindle is equipped with speed measuring device, the switching output signal shaping, connected to a digital frequency meter. At this point the starter motor, and gradually increase the speed, speed and action films in the frequency count is equal to the product of the conditions can be read directly switching frequency meter movement frequency. 2.5 Determination of repeatability; fixed on the action film gauges, other than switching from 120% distance from the front of the switch sensing surface area close to the switching action, velocity control in 0.1mm / s on. When switching readout gage readings on L, then exit the action area, the switch is turned off. Repeat 10 times, the final calculation of the maximum and minimum values ??of 10 measurements and 10 times the difference between the average value of the difference is greater for repeatability error. J4-D5C1, L, Shenyang on the people by the people on the Shenyang Electric Co., Ltd. available. Shenyang Electric Co. on people (www.zsmsy.com) strong, credible, in other industries, such as Shenyang, Liaoning province has accumulated a large number of loyal customers. The company better work attitude and constantly improving people and innovative ideas will lead you to walk hand in hand on the Shenyang brilliant, for a better future!