Temperature controller system
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United States of America Patent
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Sep 8, 1987
Issued Date -
N/A
app pub date -
Feb 14, 1986
filing date -
Oct 16, 1982
priority date (Note) -
Expired
status (Latency Note)
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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.
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