Current sensing device based on vector light field cavity enhancement effect
A technology of enhancement effect and sensing device, which is applied in the field of optics, can solve the problems of poor anti-interference ability and low sensitivity of current sensing device, and achieve the effect of good anti-electromagnetic interference characteristics and not easy to be affected by electromagnetic
Pending Publication Date: 2022-02-01
上海电铠智能科技有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to solve the problems of poor anti-interference ability and low sensitivity in existing current sensing devices
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Embodiment 1
[0027] Refer to attached figure 1 , a current sensing device based on the vector optical field cavity enhancement effect of the present embodiment, comprising a laser light source 7 and an optical field adjuster 6, a polarizing beam splitter 5, and a beam shaping device sequentially arranged on the outgoing beam path of the laser light source 7 device 4 and high-definition cavity 3, the central area of the high-definition cavity 3 is provided with an alkali metal atom gas chamber 2, and the alkali metal atom gas chamber 2 is arranged in the magnetic field area generated by the detection current 1, and the high-definition The spherical surface of the precision cavity 3 emits light beams toward the laser light source 7, and the high-precision cavity 3 is provided with two spherical beam exit ends, and the two spherical beam exit ends are respectively provided with two beam polarization analysis sensors for receiving high-definition For the output beam of the measuring cavity 3...
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The invention discloses a current sensing device based on a vector light field cavity enhancement effect. The device comprises a laser light source, and a light field regulator, a polarizing beam splitter, a beam shaper and a high-fineness cavity which are sequentially arranged in an emergent beam path of the laser light source, an alkali metal atom gas chamber is arranged in a central area of the high-fineness cavity, the alkali metal atom gas chamber is arranged in a magnetic field area generated by detection current, the spherical surface of the high-fineness cavity emits light beams towards the laser light source, the high-fineness cavity is provided with two spherical light beam emitting ends, the two spherical light beam emitting ends are respectively provided with two light beam polarization analysis sensors used for receiving the emergent light beams of the high-fineness cavity, and the two light beam polarization analysis sensors are both in communication connection with the same information processing unit. The information processing unit obtains the magnetic field information of the space where the alkali metal atom gas chamber is located by analyzing the polarization characteristics of the information light field, the current magnetic effect is detected through an optical method, the current information is obtained, the light field does not have electromagnetic interference behaviors, and the stability is higher.
Description
technical field [0001] The invention belongs to the field of optical technology, in particular to a current sensing device based on vector light field cavity enhancement effect. Background technique [0002] In electromagnetism, the amount of electricity passing through any cross-section of a conductor per unit time is called the current intensity, referred to as current, the symbol of the current is I, and the unit is ampere (indicated by the letter A). Regular directional movement can form an electric current. The current sensor is a detection device that can feel the information of the measured current, and can transform the information sensed by the detection into an electrical signal that meets certain standards or other required forms of information output according to certain rules. It widely exists in the fields of power transmission, automation, Internet of Things, power supply system, transformer station, lightning protection, electrical engineering, electronic ...
Claims
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Login to View More IPC IPC(8): G01R19/25
CPCG01R19/25
Inventor 高秀敏赵建民郭修立赵建涛王喜贵
Owner 上海电铠智能科技有限公司