Calibration Services

The Laboratory offers calibration of 2 and 3 terminal capacitors in the range from 10 pF to 1.11 µF, including measurement of capacitance and dissipation factor.

Tests are normally made at a nominal ambient temperature of 23°C; and unless otherwise specified the test frequency will be 1 kHz. Tests at other frequencies in the range from 50 Hz to 10 kHz can be offered but with increased measurement uncertainty.

 

The Laboratory offers calibration of standard inductors in the range from 100 µH to 1 H.

Measurements are normally made at a nominal ambient temperature of 23°C and unless otherwise specified, the test frequency will be 1 kHz. (Tests at 400 Hz and 10 kHz can be offered upon request.)

The inductor will be calibrated as a 2-terminal device and the series equivalent inductance of the device will be reported.

 

There are many methods for measuring impedance and commercial LCR meters may have very different working principles. It is more advisable that customers submit their impedance standards for calibration, which in turn can be used to perform in-house checking of their LCR meters. However, the Laboratory may offer performance checks for LCR meters using impedance standards.

The tests will normally be made at 1 kHz and will be restricted to decade values in the following ranges:

• Resistance : 1 Ω to 10k Ω (2- or 4-terminal)
• Capacitance : 10 pF to 1.0 µF (2- or 3-terminal)
• Inductance : 100 µH to 1H (2-terminal)

Customers may be required to submit compatible test fixture and/or test leads for the tests.

 

SCL has been accredited to calibrate phase standard generators.

The phase accuracy between two test signals will be determined.

Calibration will cover frequency range from 40 Hz to 100 kHz.

 

The Laboratory offers calibration for phasemeters in frequency range 1 Hz to 100 kHz.

The phasemeters will be calibrated by applying two digitally synthesized low distortion sine waves generated by the Laboratory's phase angle standard. Signal levels range from 100 mV to 100 V rms.

The basic calibration for a phasemeter include checking of phase angle measurement accuracy at equal signal levels for 4 different frequencies.