Flow calculation device and calculation method

A flow calculation and flow value technology, which is used in measurement devices, flow measurement/mass flow, liquid/fluid solid measurement, etc. It can solve problems such as non-interchangeability, low flow calculation accuracy, and small signal external electromagnetic interference.

Pending Publication Date: 2021-05-28
SHENZHEN HONGDIAN TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the acoustic transmitting transducer is specially used to transmit ultrasonic signals of a certain frequency, and the acoustic receiving transducer is specially used to receive the diffracted ultrasonic signals. The two modules are independently controlled and work separately. They are not interchangeable during the working process. There is noise and external electromagnetic interference of small signals on the circuit, resulting in low accuracy of flow calculation

Method used

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  • Flow calculation device and calculation method
  • Flow calculation device and calculation method
  • Flow calculation device and calculation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] figure 1 It is a structural block diagram of a flow calculation device provided in Embodiment 1 of the present invention. refer to figure 1 , the flow calculation device includes: a signal transmitting and receiving module 10, a transduction module 20 and a control module 30; wherein, the signal transmitting and receiving module 10 is electrically connected to the control module 30; the signal transmitting and receiving module 10 includes a signal transmitting terminal A1 and Signal receiving end A2;

[0040] The control module 30 is used to control the conduction between the transduction module 20 and the signal receiving end A2, and simultaneously control the disconnection of the transduction module 20 and the signal transmitting end A1, so as to measure the noise information of the medium to be tested and obtain the noise component; the control module 30 also uses The control transduction module 20 is connected with the signal transmitting end A1 and the signal rec...

Embodiment 2

[0050] figure 2 is a schematic structural diagram of a flow calculation device provided in Embodiment 2 of the present invention, image 3 is a schematic diagram of the circuit structure of the signal storage module provided in Embodiment 2 of the present invention, Figure 4 It is a schematic diagram of the current structure of wired communication provided in Embodiment 2 of the present invention, Figure 5 It is a schematic diagram of the current structure of the wireless communication provided in Embodiment 2 of the present invention. On the basis of the first embodiment above, refer to figure 2 , the signal transmitting and receiving module 10 comprises a switching unit 11, a signal transmitting unit 12 and a signal receiving unit 13, the signal transmitting unit 12 comprises a signal transmitting terminal A1, the signal receiving unit 13 comprises a signal receiving terminal A2, the switching unit 11 is connected with the transduction module respectively 20. The sign...

Embodiment 3

[0062] Image 6 It is a schematic structural diagram of a flow calculation device provided in Embodiment 3 of the present invention. On the basis of the above embodiments, optionally, refer to Image 6 , the transducer module includes a first transducer 22 and a second transducer 23, both of the first transducer 22 and the second transducer 23 are connected to the switching unit 11, and the switching unit 11 is used to conduct or disconnect the first transducer A path between a transducer 22 and the signal transmitting unit 12, a path between the first transducer 22 and the signal receiving unit 13, a path between the second transducer 23 and the signal transmitting unit 12, and a path between the second transducer 23 and the signal receiving unit Access to unit 13.

[0063] Wherein, both the first transducer 22 and the second transducer 23 may be ultrasonic transducers.

[0064] Specifically, in the technical solution of this embodiment, refer to Image 6 , the implementa...

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Abstract

The embodiment of the invention discloses a flow calculation device and a flow calculation method. The flow calculation device comprises a signal transmitting and receiving module, a transduction module and a control module; the signal transmitting and receiving module is electrically connected with the control module; the signal transmitting and receiving module comprises a signal transmitting end and a signal receiving end; the control module is used for controlling the transduction module to be connected with the signal receiving end and controlling the transduction module to be disconnected with the signal transmitting end so as to measure noise information of a to-be-measured medium and obtain noise components; the control module is further used for controlling the transduction module to be conducted with the signal transmitting end and the signal receiving end at the same time so as to measure flow information of the to-be-measured medium and obtain a measured flow value, and determining a real flow value of the to-be-measured medium according to the noise components and the measured flow value. Therefore, the real flow value of the to-be-measured medium can be obtained by completely removing the noise components when the real flow value is calculated, error interference generated by the noise components in a detection environment is reduced, and the flow calculation precision of the to-be-measured medium is improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of flow monitoring, and in particular, to a flow calculation device and calculation method. Background technique [0002] Most of the existing acoustic Doppler velocity and flow calculations use the Doppler frequency shift principle to measure the corresponding flow velocity by measuring the signal frequency shift of the product during the ultrasonic transmission process, and then calculate the corresponding flow. [0003] The characteristics of this measurement method are: there must be an acoustic transmitting transducer and an acoustic receiving transducer (there are also transmitting and receiving sharing an acoustic transducer, time-division multiplexing acoustic transducer). Among them, the acoustic transmitting transducer is specially used to transmit ultrasonic signals of a certain frequency, and the acoustic receiving transducer is specially used to receive the diffracted u...

Claims

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Application Information

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IPC IPC(8): G01F1/66
CPCG01F1/663G01F1/667
Inventor 李丛周志明冯阳张清波邓权吴振华戴聪聪廖锴夏松柏舒莉
Owner SHENZHEN HONGDIAN TECH CORP
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