Today, Wuxi RIHUAN Sensing Technology Co., Ltd. will introduce RIhuan proximity switches to you. The era of quality and price ratio: Domestic proximity switches are on par with imported quality.

What is a proximity switch?

Proximity sensors are a general term for sensors that aim to detect objects without contact, replacing contact detection methods such as limit switches. They can convert the movement and presence information of the detected object into electrical signals.

Among the detection methods that switch to electrical signals, there are those that utilize the eddy current generated in the metal body of the detection object caused by electromagnetic induction and those that change the capacity of the electrical signal due to the approach of the measured object.

Types of proximity switches

Inductive type：

The inductor generates a high-frequency magnetic field through the internal inductance. When the target approaches the magnetic field, induced eddy currents will be generated on the target surface.

As the target approaches, the induced eddy current will intensify, causing the load on the oscillation circuit to increase and leading to a weakening or even cessation of the oscillation.

The sensor can determine whether the target exists by detecting the amplitude.

Application: It is often used to detect metal material targets, such as iron, copper, aluminum and other metals.

Inductive metal cylindrical type

Inductive metal plug type

Inductive rubber shell square type

Capacitive type

The sensing surface of the sensor serves as one plate, and the detection target acts as the other plate. As the target gradually approaches, the medium or the distance between the plates will change, thereby causing a change in capacitance. By detecting the capacitance, the existence of the target can be determined.

Application: It can detect any material, such as metal, wood, liquid, plastic, etc.

Capacitive proximity switch

Application scenarios

Identification of workpieces picked up by mechanical arms

In the application of grasping workpieces, the product is installed at the front end of the arm, which can help the mechanical arm effectively detect the workpiece when grasping it, determine the correct grasping position, and improve the assembly accuracy. Moreover, its compact design does not occupy the limited space at the front end of the robotic arm and is easy to install and use.

Silicon wafer loading identification

The flat capacitive sensor is used to detect the position of the tongue on the silicon wafer and send a signal to trigger the upward movement of the flower basket lifting structure. The stable detection of the flower basket can reduce the risk of fragmentation during the feeding and silicon wafer transfer process.

Product parameter

There are too many products, and only some of the parameters are displayed

For more product details or to obtain customized solutions, please feel free to contact us at any time. Wuxi Rihuan Sensing Technology Co., Ltd. has always taken quality as its core and innovation as its driving force, dedicated to providing more reliable and cost-effective high-temperature detection solutions for the industrial automation field, and striving to become your trusted partner in high-temperature working conditions!