Ultrasonic water meter

According to the working principle of sensors, they can be divided into physical sensors and chemical sensors:
1、 Classification of sensor working principle Physical sensors apply physical effects, such as piezoelectric effect, magnetostrictive phenomenon, ionization, polarization, thermoelectric, photoelectric, magnetoelectric and other effects. Small changes in the measured signal quantity will be converted into electrical signals.
2、 Chemical sensors include those with chemical adsorption, electrochemical reaction and other phenomena as the causal relationship. The small changes in the measured signal quantity will also be converted into electrical signals.
Laser sensors, which are increasingly favored by industrial control, are developing rapidly. Laser sensors are not only widely used, but also can realize non-contact remote measurement by using the characteristics of laser such as high directionality, high monochromaticity and high brightness. Laser sensors are often used for the measurement of physical quantities such as length, distance, vibration, speed and orientation, and also for flaw detection and monitoring of atmospheric pollutants.
ZLDS10X series brand laser displacement sensor has digital integrated structure, 0.01% high resolution, 0.1% high linearity, 9.4KHz high response, IP67 protection level and synchronization and other high performance. Wide working temperature range, especially suitable for high-precision applications in industrial environment.
The basic principle is optical triangulation:
The semiconductor laser ① is focused on the measured object ⑥ by the lens ②. The reflected light is collected by the lens ③ and projected onto the CMOS array ④; The signal processor ⑤ calculates the position of light points on the array ④ through trigonometric function to obtain the distance from the object.