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A Broadband Ultrasonic Receiver and Its Application

A receiving device, ultrasonic technology, applied to measuring devices, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, using sound waves/ultrasonic waves/infrasonic waves for material analysis, etc., can solve the problems of large volume, narrow frequency band response range, high cost, etc., to achieve The effect of small volume, low cost and small area

Active Publication Date: 2020-05-19
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the above defects or improvement needs of the prior art, the present invention provides a wide-band ultrasonic receiving device and its application, thereby solving the technical problems of narrow frequency band response range, large volume and high cost in the prior art

Method used

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  • A Broadband Ultrasonic Receiver and Its Application
  • A Broadband Ultrasonic Receiver and Its Application
  • A Broadband Ultrasonic Receiver and Its Application

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0035] Such as figure 1 As shown, a broadband ultrasonic receiving device includes a transmitting transducer 1, a receiving transducer array 3, a signal acquisition unit and a signal compensation unit connected in sequence,

[0036] The transmitting transducer sheet is used to generate an ultrasonic signal under the action of an excitation signal;

[0037] The receiving transducer array includ...

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Abstract

The invention belongs to the technical field of ultrasonic receiving, and discloses a broadband ultrasonic receiving device, and an application thereof. The broadband ultrasonic receiving device comprises an emitting transduction piece, a receiving transduction piece array, a signal acquisition unit and a signal compensation unit which are connected in sequence, wherein the emitting transduction piece is used to generate ultrasonic signals under the action of excitation signals; the receiving transduction piece array comprises a plurality of receiving transduction pieces with different resonance frequencies, and each receiving transduction piece is used to receive the ultrasonic signals within a frequency response range corresponding to the resonance frequency of the receiving transductionpiece and convert the ultrasonic signals into electrical signals; the signal acquisition unit is used to receive the electrical signals and convert the electrical signals into digital signals; and the signal compensation unit is used to receive the digital signals and carry out frequency domain compensation on the digital signals to obtain final ultrasonic signals. The device disclosed by the invention has the advantages that the frequency response range is between 0MHz and 128MHz; and the ultrasonic receiving device with the broad frequency response range, a small size and low cost can be integrated into a lithium battery pack.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic reception, and more specifically relates to a broadband ultrasonic receiving device and its application. Background technique [0002] Lithium batteries are now widely used and have penetrated into all aspects of life, and the total number of lithium batteries is still growing. However, there are still problems such as quality detection and inaccurate charge measurement, which are disadvantages of traditional measurement methods. At present, the traditional methods used to measure lithium batteries in the lithium battery industry are all external characteristic measurements. Internal measurements are made through the interface between the battery and the outside world, resulting in the inability to accurately obtain the internal state of the lithium battery. [0003] The recently proposed method of using ultrasonic waves to measure the internal state of the battery is a completely different mea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/392G01N29/04G01N29/24
CPCG01N29/043G01N29/24G01N2291/0289G01R31/392
Inventor 吴金洋吴加隽金楚琪沈越黄云辉
Owner HUAZHONG UNIV OF SCI & TECH
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