| タイトル | Temperature control system with a pulse width modulated bridge |
| 本文（外部サイト） | http://hdl.handle.net/2060/19730017703 |
| 著者（英） | Heyser, R. C. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 1973-05-15 |
| 言語 | eng |
| 内容記述 | A temperature control system, which includes a modified wheatstone bridge with a resistive-capacitive (RC) circuit in one leg of the bridge, is disclosed. The RC circuit includes a resistor which provides an effective resistance as a function of its absolute resistance and the on-time to off-time ratio of pulses supplied to a switch connected across it. A sawtooth voltage is produced across the RC circuit. The voltage is compared with the voltage across a temperature sensor with heat being applied during each pulse period portion when the sawtooth voltage exceeds the voltage across the temperature sensor. |
| NASA分類 | INSTRUMENTATION AND PHOTOGRAPHY |
| レポートNO | 73N26430 |
| 権利 | No Copyright |
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