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Proximity Switches Manufacturers and Suppliers

IQS Directory provides an extensive list of proximity switch manufacturers and suppliers. Utilize our website to review and source proximity switch manufacturers with our easy-to-use features which allow you to locate proximity switch companies that will design, engineer, and manufacture proximity switches for your exact specifications. Our request for quote forms make it easy to connect with leading proximity switch manufacturers. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for silicone keypads, membrane switch panels, or rubber keyboards.

  • Perry, NY 800-227-5718

    JN White is an ISO 9001:2015 and ITAR-certified manufacturer of membrane switches, graphic overlays, and custom labels. We nimbly handle projects big and small and have the uncommon ability to translate what our customers need into high-quality, high-precision outcomes.

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  • Watertown, CT 800-853-5617

    ECI Technologies is a leading designer and manufacturer of innovative membrane switches, graphic overlays and electronic interfaces. We can produce tactile and non-tactile switches and keypads, as well as add features such as backlighting and environmental protection. We also offer quick-turn prototype design and production. Since 1991, we have been serving industries such as industrial, medical, military, and avionics.

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  • Kirkland, WA 888-211-6325

    With over 30 years of experience, ALMAX is a leading manufacturer of membrane switch assemblies, printed/flexible electronics, and interactive technologies. Our engineering and manufacturing capabilities are implemented and trusted around the globe, and we're proud to offer our clients a complete range of services that meet the highest standards of quality and reliability.

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  • New Bedford, MA 800-451-3275

    Design-Mark Industries is a membrane switch manufacturer offering custom membrane keyboards, tactile switches, membrane keypads and screen-printed graphic overlays. An ISO 9001-certified company, we meet the specifications for die cutting, shielding and insulators.

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  • Fullerton, CA 714-484-7597

    Since 1992, PRINTEC has earned a Global reputation for its excellence in designing and manufacturing Human Interface Devices. We are fully-owned and self-contained facility, which allows us to direct and control the progress of any project, production, and design. We're a leading manufacturer and designer of custom-built and standard electronic interfaces. We manufacture Membrane switches, Flexible Printed Circuits, Silicon Rubber Keypads, Touch Screens and more.

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Proximity Switches Industry Information

Proximity Switches

Proximity switches are made to open or close an electrical circuit when they either make contact or come within a certain distance of an object. They detect objects in close “proximity.” Proximity switches come in four basic types: infrared, acoustic, capacitive, and inductive.

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How Proximity Switches Work

Infrared proximity switches work by sending out beams of infrared invisible light. A photodetector on the switch determines if there are any objects nearby by detecting any reflection of the beam of light sent out. However, a switch with only a light source and photodiode is susceptible to inaccurate readings due to background light. For that reason, more complex models modulate the transmitted light at a specific frequency and have receivers that only respond to said frequency. Even more complex models can use the light reflected from an object to compute its distance from the sensor. In principle, acoustic proximity switches are similar to infrared switches, but instead of light, they use sound. Acoustic switches work by using a transducer to transmit inaudible sound waves at various frequencies in a preset sequence. Then, they measure the length of time the sound takes to hit a nearby object and then return to a second transducer on the switch. Essentially, acoustic switches employ echolocation, a practice similar to sonar, used in nature by bats and dolphins. Capacitive proximity switches sense distance to objects by detecting changes in surrounding capacitance. A radio-frequency oscillator is connected to a metal plate and its frequency changes when the plate nears an object. When this change takes place, the frequency detector sends a signal telling the switch to open or close. Finally, inductive proximity switches sense distances to objects by generating magnetic fields, similar in this way to metal detectors. To function, a wire coil is charged with an electrical current, which is measured by an electronic circuit. If a metallic part gets close enough to the coil, the current will increase, and the switch will open or close accordingly.

Applications of Proximity Switches

Proximity switches are used primarily in manufacturing processes and equipment, robotics, and security systems. For example, proximity switches may measure the position of machine components, detect the opening of a door or monitor a robot or its component's proximity to an object, and steer it accordingly.



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Proximity Switches Informational Video