发明名称 |
Thermal noise thermometer |
摘要 |
A thermal noise thermometer operating on the principle that the temperature of a resistor is related to the magnitude of the thermal noise signal produced in the resistor. The thermoseter comprises a temperature-sensing resistor, a shot noise source, means for selectively applying shot noise signals from the shot noise source to the resistor, a DC amplifier for amplifying the DC signal produced in the resistor, an AC amplifier for amplifying the AC signal produced in the resistor, and means for calculating the temperature to be measured from the output signal of the AC amplifier produced when the shot noise signal is applied to the resistor, the output signal of the AC amplifier produced when no shot noise signal is applied to the resistor, and the output signal of the DC amplifier.
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申请公布号 |
US4099413(A) |
申请公布日期 |
1978.07.11 |
申请号 |
US19770805729 |
申请日期 |
1977.06.13 |
申请人 |
YOKOGAWA ELECTRIC WORKS, LTD. |
发明人 |
OHTE, AKIRA;IMAMURA, MAKOTO |
分类号 |
G01K7/30;(IPC1-7):G01K7/30 |
主分类号 |
G01K7/30 |
代理机构 |
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地址 |
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