Apparatus and method for measuring temperature distribution in alkali metal air chamber of atom magnetometer

A technology of alkali metal gas chamber and atomic magnetic intensity, applied in the field of temperature detection and optical detection, can solve the problems of insufficient temperature and heat balance time and in-depth, and achieve the effect of improving sensitivity

Active Publication Date: 2016-03-16
SOUTHEAST UNIV
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Problems solved by technology

However, the research on the temperature, especially the distribution of the temperature in the alkali metal gas chamber an...

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  • Apparatus and method for measuring temperature distribution in alkali metal air chamber of atom magnetometer
  • Apparatus and method for measuring temperature distribution in alkali metal air chamber of atom magnetometer
  • Apparatus and method for measuring temperature distribution in alkali metal air chamber of atom magnetometer

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Embodiment Construction

[0026] The invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] Such as figure 1 As shown, the present invention proposes a measuring device for temperature distribution in a SERF atomic magnetometer alkali metal gas chamber, including a light source system, an oven 11, an alkali metal gas chamber 12, and a signal detection system; the light source system is used to generate and measure alkali metal Laser for temperature distribution in gas chamber, including laser 1, Wave plate 2, PBS3, coupler 4, NPBS7, aperture 8, mirror 10; Described oven 11 is used for heating alkali metal gas chamber 12; Said alkali metal gas chamber 12 is packaged with alkali metal atom, inert gas and Buffer gas, which is placed inside the oven 11; the signal detection system is used to detect signals representing the temperature distribution in the alkali metal gas chamber 12, including two photodetectors 14,16, an optical chopper 6, two phase-lo...

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Abstract

The invention discloses an apparatus for measuring temperature distribution in an alkali metal air chamber of an SERF atom magnetometer. The apparatus comprises a light source system, a heating system, the alkali metal air chamber and a signal detection system, wherein the light source system is used for generating laser for measuring the temperature distribution in the alkali metal air chamber and comprises a laser, a lambda/2 wave plate, a PBS, a coupler, an NPBS, diaphragms and a reflective mirror; the heating system is used for heating the alkali metal air chamber; alkali metal atoms, inert gases and buffer gases are packaged in the alkali metal air chamber; and the signal detection system is used for detecting signals representing the temperature distribution in the alkali metal air chamber and comprises two photoelectric detectors, an optical chopper, two lock-in amplifiers and an oscilloscope. The invention further discloses a method for measuring temperature distribution and thermal stability time in an alkali metal air chamber. According to the invention, a simple, effective and quite-high-precision measurement scheme is provided for evaluating the temperature distribution condition and the thermal stability time in the alkali metal air chamber for the SERF atom magnetometer, and a theoretical reference is provided for improving the sensitivity of the SERF atom magnetometer.

Description

technical field [0001] The invention relates to a measuring device and method suitable for temperature distribution in an alkali metal gas chamber of a SERF atomic magnetometer, belonging to the technical fields of optical detection and temperature detection. Background technique [0002] Magnetic fields exist widely in nature, and the precise detection of extremely weak magnetic fields will help researchers in various fields discover new phenomena and explore new mechanisms. In recent years, with the rapid development of quantum manipulation technology, photoelectric detection technology and quantum sensing technology, the use of atomic spin effect to measure magnetic field has become a new development direction. Ultra-sensitive quantum sensors, such as superconducting quantum interferometers, proton magnetometers, optically pumped magnetometers, and nuclear magnetic resonance magnetometers, have emerged as the times require. Among these quantum magnetometers, atomic magne...

Claims

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Application Information

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IPC IPC(8): G01K11/00
CPCG01K11/006
Inventor 陈熙源张红邹升
Owner SOUTHEAST UNIV
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