The displacement sensor has no sliding contacts, is not affected by non-metallic elements such as dust during operation, has low power consumption, and has a long service life, so it can be used in various bad conditions. Displacement sensors are mainly used to intelligently control the analog quantity of automation equipment production lines.
The displacement sensor uses the laser triangulation reflection method for measurement, and there is no requirement for the data of the measured object, which mainly affects the ambient light intensity and whether the measured surface is flat, for example, if the real laser position sensor is used for road measurement, the sensor is specially equipped, which is different from the ordinary situation.
Displacement is a quantity related to the azimuth movement of the object in the process of motion, the measurement method of displacement touches a wide range of applications, strain type, formula, beauty dynamic instrument type Deep flow type and Luer sensor Tongxue Tian in small displacement, sensor synchronizer, gauge gate, magnetic and other sensing skills are used to measure large displacement, during which the grating sensor is easy to digitize, high precision (at present, the highest fraction can reach the nanometer level, strong anti-interference ability, no human reading error, easy installation, reliable use and other advantages, in machine tool processing, Detection instruments and other industries have been more and more widely used.
Displacement sensors can be classified by method of motion
Linear displacement sensors.
Principle: The function of a linear displacement sensor is to convert the displacement of a linear machine into an electrical signal. In order to achieve this effect, the variable electric positive slide rail is positioned in the fixed part of the sensor, and the different electric positive values are measured by the displacement of the sliding blade on the slide rail, and the sensor slide rail is connected to the steady state (voltage, which promises a small current to flow through the safe circuit. The voltage between the slide rail and the start end is proportional to the telecontrol length of the slide rail. The use of the sensor as a voltage divider can minimize the peak and low requirements for the total electrical return accuracy of the slide rail, and the change in resistance due to temperature change will not affect the measurement result.
Viewpoint displacement sensor
The viewpoint displacement sensor is used in obstructions" to enable the viewpoint sensor control wheel to directly detect obstacles. The principle is very simple: if the motor viewpoint sensor structure is running and the gears are not turning, it means that your machine is now blocked by obstacles. This skill is very simple to use, and the only requirement is that the tele wheels must not slip on the floor (perhaps most often), otherwise you will not be able to detect obstacles. An empty gear is able to avoid this problem by connecting to a motor, and this wheel is not driven by the motor, but by the movement of the device. If the drive wheel is stopped, it will be driven.
Categorization is based on data.
Metal film sensors, conductive plastic sensors, photoelectric sensors, magnetic sensors, metal-glass uranium sensors, wire-wound sensors.
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