Sensor Gradually Replace The Use Of Mechanical And Electrical Switches

The function of the sensor is constantly strengthened, the application is also more and more widely, the sensor is to become a part of the old mechanical and electrical switch technology alternatives.

The use of sensors to detect objects, can promote the miniaturization of devices, to achieve intelligent. An increasing number of sensing technologies are emerging, and the presence, level, and position sensors are rapidly replacing the old electromechanical switches. Colleagues, because based on microprocessor control technology in a variety of applications in a wide range of,  capacitive, inductive, ultrasonic sensors, optical and Hall sensor in the industrial and consumer markets found broader arena.

The sensor has the characteristics of miniaturization and simplicity, but in many applications, it also shows the disadvantage in the durability. It is not easy to use the sensor to replace the electromechanical switch directly. A key point of the switch is that it can withstand higher electrical load than the sensor, which is very important for the mechanical and electrical equipment with high inductance or resistance load. The sensor usually requires the relay and other secondary switching devices, in order to deal with the type of load. Switches are typically two wire devices that do not require an external power. Sensor is generally at least three wire configuration, the need to re design to replace the switch. In all applications, the switch provides power while the sensor requires power. Obviously, switches and sensors for application specific each one has his good points, so to determine who is the most suitable for careful assessment.

Touch sensing technology is becoming more and more popular. Compared with the common touch screens, it for the operator provides between a and a large number of devices to communicate directly with the visual interface, the continuous expansion of the scope of application of all kinds of sensors, will further stimulate the demand for this technology.

The most important point, the sensor to replace mechanical and electrical switches to all need to take into account the cost of the problem, the cost of new sensor products dropped, the user will use the sensor to replace the switch. Improved electrical design, the use of fewer sensors to replace multiple switches, sensors in the new application of reliability improvement, the sensor market will open a new door.