Spurious signal generation in plastic film capacitors
Abstract
Spurious signals generated in plastic film capacitors are discussed; the transients appear as small spikes in capacitor voltage in the 10 to 300 microvolt range which may repeat at intervals from fractions of a second to years. Dielectric absorption evidently provides the source of charge and the energy for the voltage transients. Thus materials with high dielectric absorption, such as Mylar, more frequently show this type of spurious signal generation than do nonpolar dielectrics such as styrene. Minimization of spurious signals through selection of materials, preconditioning or annealing and capacitor screening techniques is considered.
- Publication:
-
NASA STI/Recon Technical Report A
- Pub Date:
- December 1977
- Bibcode:
- 1977STIA...7817866B
- Keywords:
-
- Capacitors;
- Dielectrics;
- Noise Generators;
- Noise Reduction;
- Polymeric Films;
- Spike Potentials;
- Annealing;
- Energy Absorption;
- Mylar (Trademark);
- Screening;
- Styrenes;
- Thermal Simulation;
- Transient Response;
- Electronics and Electrical Engineering