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Oscilloscope Maintenance

 

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Test equipment and instrument repair services test and repair industrial equipment and instruments. They specialize in the test and repair of acoustic and vibration equipment, electrical and electronic test equipment, laboratory equipment and instruments, inspection instruments or non-destructive testing (NDT) equipment, or specialty testing equipment and instruments.
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  • Applying Acoustic Vibration Monitoring to Predictive Maintenance
    to a bearing, and when. compared to the relatively smooth whirring noises of a well-. the bearing itself is entering early failure stages. greased bearing. The waveform on an oscilloscope will. Remember, trending acoustic vibration warns us of the ear-. show inconsistent peaks if the bearing is lacking
  • FIBER BRUSHES: The Maintenance-Free Wind Turbine Slip Ring Contact Material
    . There is some. small variation in contact resistance during rotation. of a slip ring. Under normal conditions this. variation is quite low. The variation in contact. resistance is measured with an oscilloscope as a. peak-to-peak change in voltage at a constant. current (often 50 ma). Most systems
  • Electric Motor Testing-The New Kid on the PdM Block
    in the past might include: VOM, control center (MCC) bucket (see Image 1) feeding a. ammeter, megohmeter, LRC bridge, low resistance bridge, motor and its associated asset (pump, gearbox, fan, etc.) It. oscilloscope or a monolithic rotor bar tester, to name a is sometimes necessary to test at a secondary
  • Encoders for Linear Motors in the Electronics Industry (.pdf)
    of the scanning reticle fi lters the. light current to generate nearly sinusoidal. output signals. In the XY representation on an oscilloscope. the signals form a Lissajous fi gure. Ideal. output signals appear as a concentric inner. circle. Deviations in the circular form and. position are caused
  • IR Drop Compensation Adjustment
    the. reasonably expected. speed potentiometer to run the motor at the speed at which. regulation is most critical: usually the machine linespeed. It. One word of caution: IR drop compensation must never be. will be necessary to use a hand tachometer, oscilloscope,. used with a speed regulator that uses
  • Using Alpha Ionization to Optimize Performance of a Spin Station
    to a LeCroy 9345 digitizing oscilloscope. A grounded P-2042 alpha ionizer was placed 1" above the center of the plate. A discharge time of < 200 msec was achieved for discharges from 1000 V to 100 V and for 10 V to 1 V. For the later measurement, the plate was touched by a lead from a 10 V DC
  • Rotary Vs. Solid State Design
    . A 50% or more cost adder is acceptable (vs. rotary design) primarily to achieve the desired operating sound level after considering the three alternatives for rotary and finding them unacceptable under the circumstances. An English speaking electrical technician capable of using an oscilloscope
  • Varistor Testing (.pdf)
    in Figure 1 is used,. Two typical current impulses that may be used to define the. except an AC VARIACTM is substituted for the DC power supply,. varistor clamping voltage are the 8/20µs and the 10/1000µs. and an oscilloscope is substituted for the voltmeter. This circuit. pulses. Figure 5 shows

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