FIELD: automatic control devices. SUBSTANCE: temperature controller has pulse generator 1, measuring bridge 2, recording unit 3, power element 4, temperature indicator 5, and load 6. Voltage regulator diode 10, resistor 9, and transistor 8 shape 100-Hz pulses synchronized by supply mains as sine wave crosses zero. EFFECT: improved temperature control accuracy, eliminated supply mains and radio interferences, simplified design. 2 dwg
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Authors
Dates
1995-03-27—Published
1992-03-03—Filed