Temperature controller system
US4692598A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1986 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Feb 14, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/24
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A temperature controller for an incubator or an oven for keeping the temperature in a chamber at a constant level by controlling the energization of heaters. The temperature controller is provided with two temperature control systems, each of which comprising a sensor for detecting the temperature in the chamber, a thermostat for setting a temperature which is aimed at in the chamber, an error amplifier for detecting a difference between both output levels of the sensor and temperature setting means, and an electric power control circuit for controlling the energization of the heaters in correspondence with the output pulse-length of the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.