Germany Puettmann KG sensor Puettmann KG model Puettmann KG price

Puettmann KG sensor, also known as a displacement sensor, is a type of sensor used to detect the distance to an object to perform a preset function, and has been widely applied. Main products include mobile phone proximity sensors and long-distance measurement sensors, applied in smart belts. Proximity sensors can be divided into optical proximity sensors, infrared proximity sensors, ultrasonic proximity sensors, etc., based on their working principles. Most proximity sensors used in mobile phones are infrared proximity sensors, which have an infrared emitting tube and an infrared receiving tube. When the infrared ray emitted by the emitting tube is received by the receiving tube, it indicates that the distance is close, and the screen needs to be turned off to avoid misoperation. When the receiving tube does not receive the infrared ray emitted by the emitting tube, it indicates that the distance is far, and there is no need to turn off the screen. The working principles of other types of proximity sensors are similar; they also judge the distance by the emission and reception of some substance, such as ultrasonic waves, light pulses, etc.

Puettmann KG sensor applications

The most widespread application of distance sensors is in mobile phones. Smartphones on the market all contain distance sensors. When a user makes or receives a call, the phone is close to the ear, which can easily lead to accidental operations (for example, cheeks puffing out when laughing may accidentally hang up the call). Therefore, a distance sensor is needed to monitor the proximity in real time; when the distance becomes too close, it automatically turns off the screen to prevent accidental operations. In addition, distance sensors are also widely used for measuring mine shaft depth, detecting aircraft altitude, and exploring outdoor environments. With continuous technological advancement, they also show prominent performance in wearable devices (such as smart belts).

Puettmann KG sensor working principle

When the time-of-flight laser sensor is operating. The time-of-flight laser sensor must measure the transmission time extremely accurately because the speed of light is too fast. For example, the speed of light is approximately 3´108m/s. To achieve a resolution of 1mm, the electronic circuit of the time-of-flight ranging sensor must be able to distinguish the following extremely short time: 0.001m¸(3´108m/s)=3ps. Distinguishing a time of 3ps places excessive demands on electronic technology, making implementation too costly. However, today's inexpensive time-of-flight laser sensors cleverly avoid this obstacle by using a simple statistical principle, namely the law of averages, to achieve a resolution of 1mm while ensuring response speed.

Puettmann KG sensor industry applications

1) Application in taxi meter testing systems: To further save energy and reduce emissions, and to meet the metrological needs of the electric vehicle industry, the mobile electric taxi meter testing system has been officially launched. The testing device is roughly divided into two parts: one is a host unit about the size of a password box, placed on the back seat of the car, and the other is a distance sensor attached to the car body. It is reported that the device uses the driving distance measurement method. As the driver drives a certain distance, the testing device and the meter sample synchronously. The entire testing process is expected to be completed in seven to eight minutes. 2) Wide range of applications in the automation field: Nowadays, in addition to ultrasonic sensors and ordinary photoelectric sensors, a new method capable of solving long-distance measurement and inspection has been added to automatic detection and control methods—the time-of-flight laser distance sensor. It provides application flexibility for various occasions, including the following: (1) Equipment positioning. (2) Measuring the level of material packages. (3) Measuring the distance and height of objects on conveyor belts. (4) Measuring log diameter. (5) Protecting overhead cranes from collisions. (6) Error-free inspection occasions. (7) Aircraft ground clearance monitoring.

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