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Inclination angle sensor

An inclination sensor and closed tube technology, which is applied to instruments, measuring inclinations, measuring devices, etc., can solve the problems of complex structure of the inclination sensor, failure of the measurement system, inconvenient use, etc. The effect of signal strength

Inactive Publication Date: 2010-11-03
SIEMENS CHINA
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  • Summary
  • Abstract
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Problems solved by technology

[0005] However, these inclination sensors are complex in structure and expensive, and are not convenient to use in existing systems, and as long as any one of the sensors fails, the entire measurement system will fail

Method used

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Embodiment Construction

[0025] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals represent the same or similar parts.

[0026] The invention relates to a high-precision inclination sensor which can be used in an unsteady state. figure 1 It is a structural schematic diagram of a specific embodiment of the inclination sensor. As shown in the figure, the inclination sensor has a ferrofluid measuring element, a displacement measuring coil unit 3 and a deformation measuring coil unit 4 . exist figure 1 The shown ferrofluid measuring element includes: a closed tube 1 , a non-magnetic carrier liquid and a ferromagnetic fluid 2 are packaged in the closed tube 1 , and the ferromagnetic fluid 2 is immersed in the non-magnetic carrier liquid of the closed tube 1 . exist figure 1 In ...

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Abstract

The invention provides an inclination angle sensor, comprising a ferromagnetic fluid measurement element, a displacement measurement coil unit and a deformation measurement coil unit. The ferromagnetic fluid measurement element comprises a sealed tube, non-magnetic carrier liquid encapsulated in the sealed tube, and ferromagnetic fluid soaked in the non-magnetic carrier liquid. The displacement measurement coil unit is convolved on the radical periphery of the middle part of the sealed tube for measuring the displacement of the magnetic fluid. The deformation measurement coil unit is convolved along the external part of the sealed tube for measuring the deformation of the ferromagnetic fluid. The inclination angle sensor can eliminate acceleration interference and measure inclination angle precisely; the inclination angle sensor has simple structure, and can improve the measurement precision greatly by improving the existing inclination angle sensor without increasing much cost.

Description

technical field [0001] The invention relates to an inclination sensor, in particular to an inclination sensor using ferromagnetic fluid. Background technique [0002] In industrial production and scientific research, it is often necessary to measure the tilt angle of the working system relative to the reference plane, so the tilt sensor has a wide range of uses. According to different working principles, the inclination sensor can be divided into liquid pendulum type, fixed pendulum type and gas pendulum type. Liquid pendulum inclination sensors and most fixed pendulum inclination sensors can be used independently and have good steady-state performance. Gas pendulum tilt sensors are affected by many factors and are therefore rarely used. [0003] U.S. Patent 5908987 provides a ferrofluid inclination sensor, which has a glass tube filled with a non-magnetic carrier liquid, a small air bubble and about half the container volume of ferrofluid, and the radial periphery of the ...

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Application Information

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IPC IPC(8): G01C9/10G01P15/105
Inventor 林燕凌杜昭辉张奇然
Owner SIEMENS CHINA
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