Flowmeter acoustic sensor

A technology of acoustic sensor and flow meter, which is applied in the direction of fluid velocity measurement, instrumentation, velocity/acceleration/shock measurement, etc. It can solve problems such as unsuitable measurement, impact on accuracy, weak echo signal, etc., and achieve less transmission attenuation loss, High pressure watertight characteristics, effect of reducing the influence of flow field

CN103293334AInactive Publication Date: 2013-09-11HENAN UNIV OF ECONOMICS & LAW
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-09-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a flowmeter acoustic sensor and relates to the technical field of ocean current metering equipment. The flowmeter acoustic sensor comprises a first group of energy converters, a second group of energy converters, a third group of energy converters and a fourth group of energy converters. The energy converters can be electrified to respectively begin measuring. The energy converters in each group are concentrically aligned, each energy converter can emit CW ultrasonic pulse signals in water, measuring acoustic axes can be formed between energy converters in the same group, and each energy converter can simultaneously detect and receive CW ultrasonic pulse signals emitted by the energy converter in the same group and spread by media. The flowmeter acoustic sensor reduces sensitiveness on flow field disturbance and has high precision and accuracy.
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Description

technical field

[0001] The present invention relates to the technical field of flow velocity measurement equipment, and more specifically, to ocean current measurement equipment. Background technique

[0002] With the deepening of ocean development and research, ocean current velocity parameters are important data objects of great concern to ocean physics and ocean climatology; at the same time, this parameter is also concerned and valued by military and national economic departments such as hydroacoustics, hydrology and water conservancy. There are many kinds of current velocity measuring instruments for measuring ocean current velocity parameters, including electromagnetic current meters, vortex current meters and Doppler current meters.

[0003] The electromagnetic current meter adopts the electromagnetic flow velocity sensor, which is greatly affected by the conductivity of seawater, has high power consumption, and is not suitable for use in freshwater environments; the ...

Examples

Embodiment Construction

[0033] combine figure 1 , four sensor mounting rods 2, 3, 4, 5 are arranged on the central mounting rod 1, and the parallel sensor mounting rods 2, 3 are combined with the central mounting rod 1 through the positioning seal 6 to form a cross bar 1; the parallel sensor mounting rod 4 , 5 Combining the positioning seal 7 with the central mounting rod 1 to form the second horizontal bar; the end of the sensor mounting rod far away from the central mounting rod 1 is provided with a spherical part. The first cross bar and the second cross bar are perpendicular to each other on the horizontal plane, and are separated from each other on the vertical plane, forming a three-dimensional ultrasonic current meter acoustic sensor with a three-dimensional cross structure. The end face sealing part 8 of the center mounting rod 1 is connected with the watertight electronic cabin of the flow meter through screws. The spherical part of each sensor installation rod is installed with two ultraso...