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  • MICRO: The Hot Button
    Pressures Build on Tool Performance Shrinking feature sizes, tighter control of device electrical parameters, such as threshold voltage and leakage current, and new interconnect materials will provide the main challenges for physical metrology methods. " So says the metrology chapter in the latest
  • Design and Development of Medical Electronic Instrumentation
    to perform volume-conductor experiments with a voltage-to-current converter. and physical models of the body. In Chapter 7 we look at the principles and clinical applications of electrical stimulation. of excitable tissues. Projects include the design of stimulation circuits for implantable. pulse
  • Proximity Sensors
    to 158 F. Conditioning the output of position sensors has always been difficult. Designers must confront linearity, hysteresis, excitation voltage instability, and voltage offset. Circuits that measure current flow between the sensing electrode and the target provide readouts in appropriate
  • Optical fibers keep an eye on sensor connections
    their threshold points readjusted to ensure proper detection. With the new amplifier's APC circuit, however, users no longer need to readjust the sensor's threshold point, says Omron. The APC continuously monitors the LED's light intensity level. When it detects a reduction in the LED's light incident level
  • Environmental Noise Control Trends in Instrumentation
    with a first-order averaging filter, and the resulting "level" or "amplitude" is displayed by a galvanometer. Traditionally three time constants are used for the averaging filter: * Extra-Fast (35ms). This is often used for peak detection. * Fast (125 ms - or 1/8s). With the fast time constant

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