发明名称 |
Apparatus for temperature compensation in a digital data handling system. |
摘要 |
<p>Temperature compensation in a digital data handling system uses a digital temperature compensation for producing a digital word modification for an input to a temperature sensitive digital to analog converter (6). The temperature affecting the digital data handling system is sensed and produces a digital temperature representation which is used by the digital computer to produce an output signal in accordance with a characterization equation in the form of Output = f(D, M) where D = digital data and M = f (temperature). The temperature stability of the digital data handling system is affected by the temperature stability of a reference voltage circuit (8, 10, 11) used in the digital-to-analog converter and having a voltage reference diode (8). A compensation circuit (29) uses a temperature sensor in the form of a second diode (28), which is thermally coupled to the reference diode (8), and a tracking type analog-to-digital converter (30-42) for converting an analog signal. The output of the analog-to-digital converter is a count stored in the counter (38) and is supplied as a digital word to a digital computer (1) which uses the digital word to modify a digital input signal to the digital-to-analog converter (6).</p> |
申请公布号 |
EP0147700(A2) |
申请公布日期 |
1985.07.10 |
申请号 |
EP19840114964 |
申请日期 |
1984.12.08 |
申请人 |
HONEYWELL INC. |
发明人 |
BOZARTH, THEODORE B., JR.;OLSEN, ARTHUR M.;ROWLANDS, RONALD H. |
分类号 |
G01D3/028;G01L19/04;G06J1/00;G08C25/00;H03M1/06;(IPC1-7):H03M1/00 |
主分类号 |
G01D3/028 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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