Advanced Transducer Technology. Volume I. Polyvinylidene Fluoride Transducer Techology.
Abstract
Various techniques were investigated for fabricating single element and multiple element pyroelectric detectors from polyvinylidene (PVF2) films. Effort was applied towards the fabrication of vacuum deposited metal electrodes on the surface of the film. The best quality films were made with 100 to 1000 A deg aluminum electrodes. Various techniques were used for poling the films to make pyroelectric devices. During the poling process, high voltage breakdown sometimes occurred due to imperfections in the film or was caused by pressure points from the supporting apparatus which caused a dielectric weakening of the film. Successful fabrication techniques were achieved for both single element and multiple element detector arrays. The single element detectors were used to investigated the pyroelectric effect and for the construction and testing simple infrared detectors. The multiple element detectors were designed to be used in a low resolution (4 x 4) infrared imaging instrument. The multiple element detectors were utilized in a breadboard model of an infrared imager which demonstrates the feasibility of the concept. The resulting instrument which used spherical reflecting mirrors as optics, was capable of detecting a human at approximately 5 meters. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1976
- Accession Number
- ADA032315
Entities
People
- Wendell R. Peters
Organizations
- Southwest Research Institute