This section provides overview, applications, and principles of proximity switches. Also, please take a look at the list of 18 proximity switch manufacturers and their company rankings.
A detection switch is a switch used to detect the position of an object and turn it on and off or switch circuits.
They operate by detecting infrared, microwave, magnetism, light, vibration, or pressure. When a switch is used to detect contact, infrared, magnetism, light, or heat, the switch is operated by the change in electrons or resistance emitted when the built-in sensing element detects light, etc. The switch is operated by the change in electrons or resistance emitted when the built-in detection element detects light, etc.
Detection switches are used in stores, residences, products, production plants, and experimental equipment. When selecting a detector switch, it is necessary to consider size, detection accuracy, noise immunity, and durability.
The following are examples of detection switches in use.
Among detection switches, this section explains the detection methods of switches that operate by contact, switches that operate by magnetism, switches that operate by light, and switches that operate by temperature change.
There are two types of detection switches: "contact type" and "non-contact type" as the first type of detection method.
Contact-type detection switches are a method that switches the contact points by the action of a physical force. Since the sensing body directly contacts the switch to switch the circuit, there is no error in detection, but there is a disadvantage that the physical contact causes the detection switch to malfunction and deteriorate over time.
Non-contact detection switches are detection switches activated by magnetism or light. Unlike contact-type switches, there is no direct contact with the sensing element, so the main body of the sensing switch has a long service life. However, they tend to be more expensive than simple contact-type detection switches.
*Including some distributors, etc.
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