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  • New touch sensor uses trapped acoustic resonance technology to monitor contacts
    resonance and monitors its decay. * A thicker substrate in the ActiveTouch switch reduces the possibility of damage due to vandalism. How capacitive sensors work: touch ( Touch-sensitive devices have become common in cell phones, industrial touch panels, and appliances. These devices typically use
  • Capacitive Touch Sense Solutions
    A touch-sensitive switch is a switch that is implemented as a trace on a printed circuit board. The architecture of the trace creates a capacitive element on the board. Touching this trace with your finger creates a change in capacitance, which is detectable using a variety of techniques
  • Switch Contacts
    Mass-produced switch contacts have an rms roughness ranging from 0.5 to 1 10 in. These "smooth " surfaces, in reality, comprise microscopic peaks and valleys. As a result, two mating contacts touch only at the surface peaks or asperities. Contact force between the two surfaces plastically flattens
  • Wired 8.09: Bright Switch
    that looked, as he describes them, like "micron layers of Lincoln logs, orthogonal to one another, and joined where they touch. " To Joannopoulos' delight, the spaces between the bars interacted with laser light in just the way he predicted. Still, this was merely a proof of concept. The designs
  • Mechanical Switches
    of contacts or returns to the original position. Mechanical-bail switches have separate switching assemblies, which are interlocked so that actuation of one switch deactivates another. A capacitive touch switch consists of two conductive layers on opposite sides of an insulating material such as glass
  • Eliminated the Need for the Intermediate Actuator by Replacing Proximity Sensors
    How to detect workpieces made from various kinds of materials without installing an intermediate actuator onto a proximity sensor? By replacing it with Metrol "High-precision Positioning Switch" which directly touch the workpieces, reliable detection as well as cost reduction and space saving can
  • Sensor Sense: Capacitive Slide Sensors
    Sensor Sense: Capacitive Slide Sensors In the last Sensor Sense we looked at capacitive touch switches used for on/off control. But these switches are also found in capacitive touch sliders that can control various levels, such as volume and light, or act as a rotary selector switch for channels
  • Introduction to Capacitive Sensing
    AN1101 Introduction to Capacitive Sensing A SHORT HISTORY Author: Tom Perme Microchip Technology Inc. While capacitive sensing has been around for more than 50 years, it is becoming increasingly easier to implement and more popular. A classic example of a INTRODUCTION capacitive switch is the Touch

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