Radiation source detector and tracker control having a shade pole and radiation responsive surface in the shape of narrow bands
US5317145A · kind A · utility
67Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 1993 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Apr 30, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/47
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A tracker controller system in which a pair of photo-resistive cadmium sulfide sensors mounted in the shadow of a shade pole generate a voltage signal proportional to their resistive values which signal is delivered to a comparator circuit that causes a tracker driver to operate when the voltage signal falls outside of a voltage window established by the comparator circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.