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Broadband pulse electric field test probe

A pulsed electric field and broadband technology, applied in the field of electromagnetic field measurement devices, can solve the problems of small range and poor anti-interference ability, and achieve the effect of strong anti-interference ability, stable system gain and reduction of system noise.

Inactive Publication Date: 2016-03-23
NORTHWEST INST OF NUCLEAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the technical problems of poor anti-interference ability and small range of existing frequency-domain electric field probes, the present invention provides a broadband pulsed electric field test probe

Method used

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  • Broadband pulse electric field test probe

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Embodiment Construction

[0027] Broadband pulsed electric field test probe, its electronic circuit board 1 is fixed in the metal shielding box 2, mainly including impedance conversion circuit and electro-optic conversion circuit; antenna mounting base 3 is welded on the electronic circuit board, monopole cylindrical antenna 4 is fixed on the In the antenna mounting base, and use the insulation kit 5 to maintain electrical insulation with the metal shielding box 2; the semiconductor laser is welded on the electronic circuit board 1, and the tail fiber of the semiconductor laser is connected to the outside through the optical fiber adapter flange fixed on the metal shielding box 2 Fiber link connection.

[0028] The pulse electric field probe adopts the monopole cylindrical antenna 4 as the signal receiving unit of the measuring device, which is processed by brass material, the design size is Φ2mm*L6mm~66mm, and the bottom end is equipped with a 5mm long thread for installation on the antenna mounting ba...

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Abstract

The invention relates to a broadband pulse electric field test probe comprising a metal shielding box, an electronic circuit board which is fixed in the metal shielding box, an antenna mounting base which is welded on the electronic circuit board, and a unipolar cylindrical antenna which is fixed in the antenna mounting base via threads and stretches out of the metal shielding box. The unipolar cylindrical antenna and the metal shielding box are maintained to be electrically insulated. The electronic circuit board is provided with a voltage follower and an electro-optical conversion circuit which are electrically connected in turn. The electro-optical conversion circuit comprises a semiconductor laser device and a driving circuit thereof. The unipolar cylindrical antenna is connected with the input end of the voltage follower. The tail fiber of the semiconductor laser device is connected with an external optical fiber link via an optical fiber adapter flange which is fixed on the metal shielding box. The objective of the invention is to provide the broadband pulse electric field test probe based on optical fiber transmission, and the broadband pulse electric field test probe is broadband, wide-range and high in anti-interference capacity.

Description

technical field [0001] The invention belongs to an electromagnetic field measuring device, in particular to a wide-band test probe used for measuring fast leading edge pulse electric field signals. Background technique [0002] The strong electromagnetic pulse generated by a nuclear explosion can couple energy into electronic equipment through cables or antennas, thereby causing damage to the electronic devices in them, resulting in functional failure or even damage to the equipment. The nuclear explosion electromagnetic pulse and its engineering protection technology have been widely concerned. The IEC Communication Committee (TC-77) listed it as a high-power electromagnetic environment that needs to be protected for civilian electronic equipment, electronic systems and devices. It has already been carried out at home and abroad. A lot of research work on nuclear electromagnetic pulse simulation and its effects. The pulse electric field measurement device mainly plays the ...

Claims

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Application Information

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IPC IPC(8): G01R29/08
CPCG01R29/0814
Inventor 崔志同聂鑫孙东阳陈鹏
Owner NORTHWEST INST OF NUCLEAR TECH
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