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Eddy Current > Components/Controls on Equipment (3) > Flashcards

Components/Controls on Equipment (3) Flashcards

1
Q

Excitation

A

Power generator / Oscillator

Frequency Hz - MHz selection

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2
Q

Modulation Circuitry

A

Shows differences in bridge circuit current flow when comparing the primary magnetic field to the secondary magnetic field.

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3
Q

Signal Preparation

A
  • Balance networks
  • Amplifiers (Gain/Db)
  • Low & High pass frequency filters
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4
Q

Demodulation & Analysis Circuitry Signal Display

A
  • Brightness
  • Contrast
  • Phase Rotation
  • Grid Selection
  • X/Y Positioning
  • Screen Persist
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5
Q

Alarms and Data Recorders

A
  • alarm when there is a disruption

- hold/save results

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6
Q

Five components of an ET instrument

A
  • Excitation
  • Modulation Circuitry
  • Signal Preparation
  • Demodulation & Analysis Circuitry Signal Display
  • Alarms & Data Recorders
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Eddy Current (20 decks)

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