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Micro-probe ultrasonic wave doppler current meter

A Doppler flow meter and ultrasonic technology, which is applied in the direction of fluid velocity measurement, instrumentation, velocity/acceleration/shock measurement, etc., can solve the problems of large probe volume and inability to measure

Inactive Publication Date: 2016-03-02
XIAMEN BOYIDA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Whether it is a rotor flow meter or an ultrasonic Doppler flow meter, the probe volume is relatively large, and the diameter of the general probe is more than 6cm, which cannot be measured in shallow waters.

Method used

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  • Micro-probe ultrasonic wave doppler current meter
  • Micro-probe ultrasonic wave doppler current meter
  • Micro-probe ultrasonic wave doppler current meter

Examples

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Effect test

Embodiment Construction

[0018] Such as figure 1 Shown is the first embodiment of a micro-probe ultrasonic Doppler current meter of the present invention, which is composed of a measuring rod 1, a control terminal 2 and a cable 3.

[0019] The control terminal 2 is a surface host 2; the measuring rod 1 is electrically connected to the control terminal 2 through a cable 3.

[0020] Such as Figure 2-Figure 5 As shown, the measuring rod 1 includes a tube body 11, a Y-shaped frame 12, two sensor jackets 13, a pair of ultrasonic sensors 14, a temperature sensor 15, a circuit board 16 (such as Image 6 shown).

[0021] The Y-shaped frame 12 is composed of a rod portion 121 and two forked portions 122 . The upper ends of the two bifurcated parts 122 are obliquely connected together and the angle between the two is less than 90°, and the two sensor jackets 13 are respectively fixed on the lower ends of the two bifurcated parts 122 of the Y-shaped frame 12 and connected with the two bifurcated parts 122. ...

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Abstract

The invention discloses a micro-probe ultrasonic wave doppler current meter, composed of a measuring bar and a control terminal. The measuring bar is in signal connection with the control terminal in a wired or wireless mode, and comprises a pipe body, a Y-shaped rack, two micro-probe supports, a pair of ultrasonic sensors, a temperature sensor and a related circuit board, wherein the Y-shaped rack is composed of a rod part and two furcated parts; two micro-probes are fixed to the lower ends of the two furcated parts of the Y-shaped rack respectively and are perpendicular to the furcated parts; the two ultrasonic sensors are installed at the front ends of the two micro-probe supports respectively; the temperature sensor is set at the rear end of one of the micro-probe supports; the pipe body is fixed to the upper end of the Y-shaped rack, and is internally provided with the related circuit board. The measuring bar is provided with the two micro probes, allowing the micro-probe ultrasonic wave doppler current meter to posses the advantages of an ultrasonic wave doppler current mete, and the characteristic of a miniature probe; a probe sensor is tiny; the micro-probe ultrasonic wave doppler current meter can measure the current velocity of a shallow water area, and solve the problem of current measurement in a shallow water area.

Description

technical field [0001] The invention relates to the field of hydrological instruments, in particular to a micro-probe ultrasonic Doppler flow meter, which is suitable for measuring flow velocity and water temperature in creeks, creeks, shoals and indoors in shallow waters (down to 2-3cm). Background technique [0002] At present, the traditional mechanical rotor current meter is mainly used for flow measurement in my country's water conservancy and hydrological systems. This kind of flow meter has a narrow speed measurement range, a large starting flow rate, and cannot measure weak currents. Defects such as easy damage, low measurement accuracy, and inability to meet the needs of long-term automatic monitoring. Ultrasonic Doppler flowmeter adopts ultrasonic transducer to detect flow velocity with ultrasonic waves. The measurement point is in front of the instrument body without destroying the flow field. The main equipment widely used in China has the advantages of high meas...

Claims

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Application Information

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IPC IPC(8): G01P5/24G01D21/02
Inventor 夏文军
Owner XIAMEN BOYIDA TECH
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