The high-temperature proximity sensor, which uses a conductive object approaching this can generate an electromagnetic field near the switch, will create an eddy current inside the object. In the eddy-current response proximity sensor, the switch changes in the circuit parameters to find out the presence of a conductor and then controls the switch to turn on or off. This method switch can detect objects that must be conductive. HallWhen a magnetic object is close to the switch, the Hall effect in the test circuit is made on the surface of the switch Hall element, so that the switch state changes, so as to find out the existence of nearby magnetic objects, and then control the switch to turn on or off. Must be the object of the metal proximity sensor test object.
It is a non-contact, fast, non-damage control of various solids, liquids and transparent bodies, black bodies, soft bodies and materials such as cold light source, infrared, red, green and blue light, such as smoking and mobility. Small size, long service life, high precision, fast response speed, long detection distance, strong optical, electrical and magnetic interference capabilities.
By people's love, more and more in our lives, it is the use of detecting objects to block or reflect beams, called the path of synchronous circuitry, to detect the presence of objects. Objects are not limited to metal, and all objects that reflect light can be tested. The photoelectric transfer switch converts the input current into an optical signal emitted by the transmitter, while the power of the receiver is further based on the light received or corrosive material. In the safety system of ordinary photoelectric switch smoke alarm, we often use it to calculate the number of movements of the robotic arm.