Evaluation of the temperature characteristic of reference capacitors

Conclusions

• 1. Numerical values of α and Β can be determined from (6) and (6a) by using the relationship of capacitance to temperature approximated by second-order curves.

• 2. The certified records which are supplied with reference capacitors and dielectrics should contain the values of α and Β, as it is done in the case of resistance coils. The temperature range for which the value of these parameters was determined should also be indicated.

• 3. The application of linear formulas in approximating temperature curves of capacitors, used over a wide temperature range or for determining with high precision the temperature coefficient of capacitance, can lead to substantial errors.