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Product Tutorials

Power Meter Tutorials

Calibration

Pwer Meter Calibration

Traceability of wide-bandwidth power meter

Calibration method for the working standard

  1. Voltage calibration
  2. Current calibration
  3. Phase angle measurement of the capacitor
  • Preparing some capacitors each frequency (50/ 60/ 400/ 1k/ 2k/ 5k / 10k/ 20k/ 50k/ 100k/ 200k/ 500kHz)
  • Measuring admittance (Conductance-G and susceptance-X) of the capacitor using precision LCR meter
  • Calculating the phase angle of the capacitor
  1. Power calibration at PF=0
    (It measures Internal phase difference between voltage and current input circuit.)
  2. Power calibration at PF=1

Calibration Method for working standard at PF=0

Capacitor's Equivalent Circuit

Consumption power of the resistor in the capacitor

Working standard displays power value (expectation)

Compensate of the input impedance of the voltage input circuit

Phase difference (_t) including the influence of input impedance of the voltage input circuit

Consumption power of the total admittance

Working standard displays power value








Release of LS3300

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Release of DL350

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Release of AQ6374

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Release of WT1800E

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Release of DM7560

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Release of AQ6376

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Release of CA300

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Release of 2560A

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Release of CW500

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Release of AQ6375B

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Release of WT300E

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