Device using electrorheological fluid to detect DC electric field intensity

A technology of electrorheological fluid and electric field strength, applied in the direction of electrostatic field measurement, etc., can solve the problems of less measurement means or devices, high equipment or test cost, complex equipment, etc., and achieve low cost, simple structure, and fast response. Effect

Active Publication Date: 2018-02-23
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In stark contrast, there are relatively few electric field measurement methods or devices on the market, and there are disadvantages such as inaccurate measurement, complex equipment, and relatively high equipment or test costs.

Method used

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  • Device using electrorheological fluid to detect DC electric field intensity
  • Device using electrorheological fluid to detect DC electric field intensity
  • Device using electrorheological fluid to detect DC electric field intensity

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specific Embodiment

[0033] The selected electrorheological fluid 3 is modified TiO 2 Electrorheological fluid, this electrorheological fluid is a high-performance modified electrorheological fluid. Its composition is as follows: Rare earth modified TiO prepared by sol-gel method 2 The solid particles are the dispersed phase of the electrorheological fluid 3, and the 201 with dimethyl sulfoxide as the additive # Methyl silicone oil is the base fluid of electrorheological fluid 3. The device is static during the test, and the working ball 7 is initially fixed on the top of the built-in tube 6 by the solenoid valve 11 . If the working ball 7 is not placed on the top before the test, the whole device can be turned upside down and energized to the solenoid valve 11 so that it is in a closed state.

[0034] Since the electrorheological fluid 3 has a Reynolds number Re球 ≥F 浮 +f 粘滞阻力 (G 球 For working ball 7 gravity, F 浮 is the buoyancy force on the working ball 7, f 粘滞阻力 is the viscous resistance...

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Abstract

A device using an electrorheological fluid to detect the DC electric field intensity mainly comprises a support, a sealed container, the electrorheological fluid, a built in slide rail, a through hole, a built in pipe, a work ball, a reflection film, a laser emission and reception device, a wire and a solenoid valve; when the device is in an external electric field, the electrorheological fluid viscosity and fluidity change, thus causing the motion state of the moving work ball to change, and finally causing different laser emission and reception device output times. The output time is transmitted to an industrial control computer, and t-E matching is carried out between the output time and a storage database, thus detecting the external electric field intensity applied on the electrorheological fluid. The method is fast in response speed, stable in results, simple in structure, low in cost, and not limited by sizes.

Description

technical field [0001] The invention relates to the technical field of electric field intensity detection, in particular to a device for detecting DC electric field intensity by using electrorheological fluid. Background technique [0002] The electric field is a special substance that exists in the space around the charge and the changing magnetic field, and is a physical field that exists around the charge and can transmit the interaction between the charge and the charge. The substance of the electric field is different from the usual objects. Although it is not composed of molecules and atoms, it exists objectively. The electric field has objective attributes such as force and energy, and there is always an electric field around the charge; at the same time, the electric field exerts a force on other charges in the field. The nature of the force of the electric field is as follows: the electric field has a force on the charge placed in it, and this force is called the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/12
CPCG01R29/12
Inventor 王婧钱国明朱孔军沈博文万新红
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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