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Method for detecting temperature of atomic gas chamber based on phase-locked amplification

A technology of atomic gas chamber and detection method, which is applied to thermometers, thermometers using directly heat-sensitive electric/magnetic elements, measuring devices, etc., can solve the problems of repeatability of measurement results, etc., to improve stability, The effect of improving stability

Inactive Publication Date: 2018-09-07
BEIJING AUTOMATION CONTROL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the reproducibility of the measurement results is poor due to the uncertain location of the alkali metal freezing point

Method used

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  • Method for detecting temperature of atomic gas chamber based on phase-locked amplification
  • Method for detecting temperature of atomic gas chamber based on phase-locked amplification
  • Method for detecting temperature of atomic gas chamber based on phase-locked amplification

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Embodiment Construction

[0049] A method for detecting the temperature of an atomic gas chamber based on lock-in amplification, comprising the steps of:

[0050] Step 1: Set up the temperature sensor

[0051] The temperature sensor used in this application can be any temperature sensor in the prior art, preferably Pt1000. The glue used to set the temperature sensor is thermal silica gel, and the position of the sensor is set to the bottom of the air chamber. The wire of the temperature sensor adopts 0.035mm 2 Small section installation lines.

[0052] Step 2: Build the bridge

[0053] Pt1000 and three low-temperature drift precision resistors are used to form a temperature measuring bridge, and the low-temperature drift precision resistors are RJK52 type resistors. The composed bridge circuit has four ports in total, any one port is connected to the power supply, the port opposite to the power supply is grounded, and the remaining two ports are bridge outputs.

[0054] Step 3: Set up the temperat...

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Abstract

The invention belongs to a gas temperature detection method, and particularly relates to a method for detecting the temperature of an atomic gas chamber based on phase-locked amplification. The methodcomprises the steps of first, setting a temperature sensor, and arranging the temperature sensor at the bottom of the gas chamber by an adhesive; second, building a bridge; third, setting a temperature measuring circuit, wherein the temperature measuring circuit comprises a phase-locked circuit, a differential amplification circuit, a power supply and a processor; fourth, performing measurement;fifth, carrying out signal processing; and sixth, carrying out signal conversion. The method has the significant effect that the stability and sensitivity of the system are improved.

Description

technical field [0001] The invention belongs to a gas temperature detection method, in particular to an atomic gas chamber temperature detection method based on phase-locked amplification. Background technique [0002] The stability of the atomic gyroscope is closely related to the temperature stability of the atomic gas chamber. At present, there are two main types of atomic gas chamber temperature detection systems: temperature measurement systems based on atomic spectroscopy and electronic circuit temperature measurement systems based on thermistors. [0003] Atomic spectrum temperature detection has the advantages of in-situ measurement and non-magnetic. However, the reproducibility of the measurement results is poor due to the uncertain location of the alkali metal freezing point. In addition, the accuracy of temperature detection requires high laser frequency stability. [0004] The temperature detection system based on thermistor has the advantages of high precisio...

Claims

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Application Information

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IPC IPC(8): G01K7/20
CPCG01K7/20
Inventor 秦杰牛光星邱宏波韩文法刘建丰汤恩琼
Owner BEIJING AUTOMATION CONTROL EQUIP INST