Inductive Voltage Dividers
Inductive voltage dividers (IVD's) will be calibrated by comparison with the Laboratory's 8-dial IVD, normally at specific frequencies of 400 Hz, 1 kHz and 10 kHz with an input test voltage of 25 V. The calibration normally involve measurement of voltage ratio (magnitude) of the output voltage related to the input voltage of the IVD.
The basic calibration for a single decade IVD will include measurement of voltage ratio for all output settings of the IVD at one test frequency.
The basic calibration for a multi-decade IVD will include measurement of voltage ratio at one frequency for all separate settings of the first and second dials of the IVD. Additionally, measurement will be made with all dials in use to realise the ratios which are multiples of 1/11 to cover the performance of all dials.
Calibration charges
| Fee in HK$ | |
|---|---|
Calibration of a single- decade IVD at one frequency. |
$2970 |
| Calibration of a multi- decade IVD at one frequency. | $5940 |
| Calibration at each additional test point. | $240 |
