Resistive

Touch Technology

A D Metro’s resistive touch products include two styles of sensors.

Choose either our conventional, standard resistive sensors or our patented ULTRA armored resistive sensors. ULTRA sensors are proven in the most physically demanding touch applications. An extensive range of 4-wire, 5-wire and 8-wire resistive sensors are available in either style.

A D Metro’s resistive touch products include a range of trusted and advanced controllers.

Our most popular 1-touch controller variant supports 4-wire or 5-wire resistive sensors and communicates through a standard USB interface. Other variants in this series attach to sensors using latching connectors specific to 4-wire, 5-wire or 8-wire sensors. There are further variants easily configurable to communicate either through USB or full voltage RS-232.

Our patented 2-touch resistive controller works with a range of unmodified 5-wire ULTRA or standard resistive controllers. Its unique 2-touch capability delivers pinch/zoom/rotate operations 5-wire resistive sensors through a standard multitouch USB interface.

A D Metro Resistive Product Technologies

A D Metro’s patented ULTRA touch screen, with its armor glass surface, is the most durable, reliable and economic resistive touch screen sensor on the market.
A D Metro stands behind these high quality resistive touch sensors that target the most cost-sensitive applications. Sensors include 5-Wire models that deliver reliability and longevity well beyond expectations.
A D Metro’s one-touch resistive touch controllers provide feature-rich, high-performance, low-cost, universal resistive touch screen control solutions.
A D Metro’s patented two-touch resistive controller, along with A D Metro’s 5-wire resistive sensors (traditional or ULTRA) deliver a unique two-touch solution that’s ideal for applications in challenging environments requiring pinch, zoom and rotate functions, such as outdoor marine and military applications.

How do resistive touch screen sensors work?

A resistive touch screen sensor is an analogue switch technology that is pressure activated. Two conductive coated layers (usually using Indium Tin Oxide [ITO]), facing each other, are separated by a layer of dielectric spacer dots. When pressure is applied to the top surface, the two layers come into contact and the controller locates the touch point. To determine the x and y coordinates, in 4- and 8-wire sensors a voltage gradient is applied to each layer in turn; and in 5-wire sensors the resistance is measured between the top layer and each of the four corners of the base layer.

For more information on popular touch screen technologies, please download our whitepaper.

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Ask the touch screen experts at A D Metro