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  • How High in Frequency Are Accelerometer Measurements Meaningful
    by the term pyrotechnic shock (pyroshock). Unfortunately, in spite of the advantage provided by the high. resonant frequencies of these accelerometers, the extremely low. intrinsic damping of silicon acts as a counterbalance. The result of. this low damping is often over-ranging and breakage
  • Introduction to LIVM Accelerometers
    Low Impedance Voltage Mode (LIVM) accelerometers are designed to measure shock and vibration phenomena over a wide frequency range. They contain integral IC electronics that converts the high impedance signal generated by the piezo crystals to a low impedance voltage that can drive long cables
  • PT 101: Accelerometers Measure Slow Speed Rollers and Detect High Frequencies
    accelerometers are the sensor of choice for accurately measuring the broad range of frequencies and low amplitudes occurring in slow speed roller bearing installations. Wilcoxon accelerometers are specially designed to maximize sensitivity to low level vibrations. Their low electronic noise floor is needed
  • PT 102: Low Frequency Vibration Measurements on a Compressor Gear Set
    The gear set on a critical turbo-compressor was monitored with a standard industrial accelerometer at very low frequencies. Severe vibrations at the hunting tooth frequency were found to be amplified by a compressor surge modulation. Diagnostic evaluation and repair effectively eliminated the surge
  • Selecting Accelerometers for and Assessing Data from Mechanical Shock Measurements
    After first clarifying what mechanical shock is and why we measure it,. basic requirements are provided for all measurement systems that. process transient signals. High- and low-frequency dynamic models for. the measuring accelerometer are presented and justified. These models. are then used
  • PT 103: Pump Monitoring
    at specific frequencies across a very wide spectrum. Reliable measurements of low frequency surge pulsations, running speed harmonics, and high frequency cavitation requires optimized vibration sensor technology. Wilcoxon Research piezoelectric accelerometers provide the dynamic and frequency ranges required
  • TN 18: Industrial Vibration Sensor Selection - Piezovelocity Transducers
    PiezoVelocity transducers have distinct advantages over traditional velocity pickups and piezoelectric accelerometers in many industrial monitoring applications. Onboard velocity integration overcomes low frequency cable pickup and the input noise of data acquisition equipment. In addition
  • Development of a Damped Piezoresistive MEMS High Shock Sensor
    , an undesirable characteristic of SCS is its extremely low internal damping, which results in susceptibility to overshoot and resonant excitation. The most commonly used MEMS devices for extreme shock applications were designed to maximize their resonant frequency. The intent was to avoid accelerometer

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