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Two-dimensional flow velocity vector measurement sensor, its manufacturing method, and signal processing method

A technology for measuring sensors and sensors, which is applied in the field of sensors, can solve problems such as the complex structure of flow velocity vector measurement sensors, and achieve the effects of convenient measurement, power saving, and simplified structure

Active Publication Date: 2017-01-11
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a two-dimensional flow velocity vector measurement sensor, its manufacturing method, and signal processing method, so as to overcome the shortcomings of the complex structure of the flow velocity vector measurement sensor in the prior art

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  • Two-dimensional flow velocity vector measurement sensor, its manufacturing method, and signal processing method
  • Two-dimensional flow velocity vector measurement sensor, its manufacturing method, and signal processing method
  • Two-dimensional flow velocity vector measurement sensor, its manufacturing method, and signal processing method

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Embodiment Construction

[0033] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] An embodiment of the present invention provides a two-dimensional flow velocity vector measurement sensor, including a base, on which a circular thermistor area is provided, and the thermistor area is divided into at least three fan-shaped areas, each Each of the fan-shaped areas is arranged with a thermistor wire in a circuitous structure, so that the thermistor wires are evenly distributed in the fan-shaped area.

[0035] Wherein, the two-dimensional flow velocity vector measurement sensor further includes a protective layer arranged on the thermistor wire.

[0036] Wherein, the material of the substrate may be glass or polyimide film.

[0037] Wherein, the thic...

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Abstract

The invention provides a two-dimensional flow velocity vector measurement sensor, a manufacturing method of the two-dimensional flow velocity vector measurement sensor and a signal processing method. The two-dimensional flow velocity vector measurement sensor comprises a substrate, a round thermistor region is arranged on the substrate, the thermistor region is divided into at least three sector regions, a thermistor wire of a roundabout structure is evenly distributed in each sector region, and thus the thermistor wires can be evenly distributed in the sector regions. The two-dimensional flow velocity vector measurement sensor is simple in structure and convenient to use for measurement.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a two-dimensional flow velocity vector measurement sensor, a manufacturing method thereof, and a signal processing method. Background technique [0002] Flow velocity measurement is required in many fields of national production and defense industry, especially in aerospace, biomedical and other fields. Traditional flow rate measurement methods include Pitot tube / pressure sensor, thermal sensor and other measurement methods. The thermal measurement method uses heat-sensitive elements such as hot wire / hot film to measure flow rate, which is a simple and easy-to-use method. The hot wire / hot film sensitive element is a thermistor wire (film), and the current passes through the resistance wire (film), so that the thermistor generates heat to heat up. When the fluid medium flows around the thermistor, it will take away the heat and cause the resistance to cool down, which will cause ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P5/12G01P13/02
Inventor 朱荣阙瑞义
Owner TSINGHUA UNIV