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(MTC) Flow sensor with flow signal amplifying function

A technology of flow sensor and amplification function, which is applied in the field of flow sensor with flow signal amplification function, which can solve the problems of too small flow signal and no signal, and achieve the effects of expanding the scope of application, improving accuracy, and not being easy to block

Inactive Publication Date: 2007-10-10
温汉璋
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a flow sensor with a flow signal amplification function (MTC) to solve the problem that the flow signal of the existing flow sensor is too small or even no signal in the measurement of the gas flow at a small flow rate

Method used

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  • (MTC) Flow sensor with flow signal amplifying function
  • (MTC) Flow sensor with flow signal amplifying function
  • (MTC) Flow sensor with flow signal amplifying function

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Embodiment 1

[0021] Embodiment 1, see Fig. 1. The present invention includes a measuring stick 1 that adopts the trailing edge of the static pressure tube to take pressure, such as the measuring stick described by the applicant in ZL03262719. Assemblies, the assembly includes a thin-waisted inner sleeve 4 and an outer sleeve 5 connected by 6, the inlet side of the inner sleeve 4 and the outer sleeve 5 are all tapered bowl-shaped tubes, and the inlet end is cylindrical, and There is an arc-shaped chamfer on the inner side of the end, and a fixed notch on the end, which is connected to one side of the static pressure tube of the sensor, and the static pressure taking port 2 is located on the axis of the inner casing 4 Thin waist; the outlet side of the inner sleeve 4 and the outer sleeve 5 are tapered, the inner sleeve 4 is arranged on the inlet side of the outer sleeve 5, and the inlet end faces of the inner sleeve 4 and the outer sleeve 5 are flush , the outlet end of said inner casing 4 ...

Embodiment 2

[0023] Embodiment 2, see Fig. 2. If the static pressure tapping port of the measuring rod used is not at the lowest flow rate designed by the signal amplification component, only one diversion nozzle needs to be added at this time. The pressure tubes are nested and matched to form a streamlined outer surface, and the pressure-taking hole in the diversion nozzle 7 communicates with the static pressure-taking port 2 on the trailing edge of the static pressure tube. The size of the diversion nozzle 7 is determined according to the shape of the trailing edge of the static pressure tube of the measuring rod, as long as the static pressure taking port 2 is extended to the thin waist of the inner casing 4.

Embodiment 3

[0024] Embodiment 3, see Fig. 3. The nozzle in this embodiment is nested with the static pressure tube of the measuring rod 1 to form a streamlined outer surface, and the static pressure tapping port 2 is extended to the narrow waist of the inner casing 4 .

[0025] Referring to Fig. 4, when the present invention is used, the total pressure tap and the static pressure tap of the measuring rod are arranged correspondingly or alternately, and a flow signal multistage amplifying device is installed on each static pressure tap. For example, 4 to 51 total pressure taps are set on the measuring stick; 3 to 50 static pressure taps are set, and a flow signal multi-stage amplification device can be installed on each static pressure tap.

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Abstract

A flow rate transducer with amplification function of flow rate signal is prepared for taking pressure at back edge of static pressure tube by measurement bar, setting pressure-taking hole of static pressure at back edge of static pressure tube and forming signal amplification component by internal and external sleeves of thin waist type and reducing pipe as well as fixed groove port being connected with said transducer.

Description

Technical field: [0001] The invention relates to the technical field of gas flow measurement, in particular to a (MTC) flow sensor with a flow signal amplification function. Background technique: [0002] Through a large number of applications and in-depth research, the applicant found that in the measurement of gas flow at a small flow velocity (V=4-15m / s), the existing flow sensor has the problem that the flow signal is too small or even has no signal. Invention content: [0003] The purpose of the present invention is to provide a (MTC) flow sensor with a flow signal amplification function to solve the problem that the flow signal of the existing flow sensor is too small or even no signal in the measurement of the gas flow at a small flow rate. [0004] In order to overcome the problems existing in the prior art, the technical solution of the present invention is: a kind of (MTC) flow sensor with flow signal amplification function, comprises the measuring rod 1 that ado...

Claims

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Application Information

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IPC IPC(8): G01F1/34G01F15/00
Inventor 温汉璋
Owner 温汉璋
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