CN2186400Y - Ultrasonic energy transducer - Google Patents
Ultrasonic energy transducer Download PDFInfo
- Publication number
- CN2186400Y CN2186400Y CN 93226594 CN93226594U CN2186400Y CN 2186400 Y CN2186400 Y CN 2186400Y CN 93226594 CN93226594 CN 93226594 CN 93226594 U CN93226594 U CN 93226594U CN 2186400 Y CN2186400 Y CN 2186400Y
- Authority
- CN
- China
- Prior art keywords
- signal
- ultrasonic energy
- energy transducer
- combined
- receiver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to an ultrasonic energy transducer, which adopt a combined structure to enable a transmitter or a receiver to be combined with a combined receiver or a combined transmitter which is composed of a plurality of receiving probes or a plurality of transmitting probes into one body. The inside of the ultrasonic energy transducer is provided with front matching material and back lining material matched with impedance; the ultrasonic energy transducer takes a wideband narrow pulse ultrasonic signal as an actuating signal, the strength of a transmitted signal is improved, the signal noise ratio of a reflected signal is improved, the strength of disturbing wave is reduced, and the precision and the reliability of the detection of non-metal material, particularly the anisotropic polyphase bodies made of sand, stones, cement, etc. are improved. The utility model relates to an ideal and high-efficiency ultrasonic energy transducer.
Description
The utility model relates to the manufacturing technology of the ultrasonic transducer that is used for the nonmetallic materials ultrasonic measurement.
Existing ultrasound measuring instrument is usually used in the measurement of nonmetallic materials, and its ultrasonic transducer constitutes (double probe method) by transmitting probe and receiving transducer usually.During work two probes are placed the same side of testee, one one is taken in row and measures.But the ultrasonic transducer of this structure is measured nonmetallic materials, particularly as the heterogeneous body material of making by sand, stone, cement etc. of heterogeneous body, because ultrasonic attenuation is big, a little less than the reflected signal at interface place, little and the reflection wave of signal to noise ratio (S/N ratio) is often covered by direct wave and surface wave, therefore the detection to reflection wave is difficult to identification, and the detection of above-mentioned material is difficult to obtain testing result effectively accurately.
The utility model purpose is to provide a kind of novel structure, and is highly sensitive, anti-interference good, and the signal to noise ratio (S/N ratio) height is used for nonmetallic materials, particularly can be used for the ultrasonic transducer of the heterogeneous body material tests of heterogeneous body made by sand, stone, cement.
The utility model is to constitute like this: ultrasonic transducer is a unitized construction, and combined reception device or the combination emitter that is made of several receiving transducers or transmitting probe is set around transmitter or receiver.During work, by emission wideband-short pulse ultrasonic signal in the emitter set, the receiver that is combined receives or launches the wideband-short pulse ultrasonic signal by combination emitter, be received device and concentrate reception, probe in the combined reception device or the probe number in the combination emitter can reduce or increase according to the situation of testee.The forward and backward impedance phase matched materials that is equipped with in ultrasonic transducer, and strengthen the directive property of transducer by row's battle array of probe transmits and reduces surface wave, the interference of direct wave signal with enhancing.
The utility model is owing to adopted unitized construction, emission wideband-short pulse ultrasound wave and at transmitter, receiver is built-in with the back lining materials of impedance matching, make that the transponder pulse when measuring is narrow, a little less than the undesired signal, the signal to noise ratio (S/N ratio) of reflection wave signal is higher, and reflection wave signal is discerned easily, nonmetallic materials is detected can obtain satisfied effect
Accompanying drawing is embodiment of the present utility model, wherein:
Fig. 1, the utility model synoptic diagram;
Fig. 2, the utility model section and work synoptic diagram.
In conjunction with the accompanying drawings the utility model is described in detail;
The utility model is made of transmitter or receiver 1 and combined reception device or combination emitter 2, and transmitter or receiver 1 upper end are provided with cable connector plug 3, and combined reception device or combination emitter 2 are made up of several receptions or transmitting probe 4.Be equipped with cable connector plug 5 above combined reception device or the combination emitter 2.Forward and backward preceding coupling 7 and the back backing 6 that is equipped with impedance matching in combined reception or combination emitter 2 and transmitter or receiver 1 is equipped with piezoelectric 8 between preceding coupling 7 and back backing 6.
When measuring beginning, be connected with firing cable, the reception cable of pick-up unit by cable connector plug 3,5 earlier, transmitter 1 or combination emitter 2 emission wideband-short pulse ultrasound waves, two octaves of bandwidth 3db, the pulsewidth 1-1.5 cycle, receiver 1 or combined reception device 2 are accepted the wideband-short pulse signal of reflection and are transported to pick-up unit through cable, obtain accurate, reliable result.
Claims (1)
- A kind of novel ultrasonic transducer, by transmitter or receiver (1) and combined reception device or combination emitter (2) formation, it is characterized in that around transmitter or receiver (1), being provided with combined reception device or the combination emitter (2) that constitutes by receiving transducer or transmitting probe, forward and backward preceding coupling (7) and the back backing (6) that is equipped with impedance matching in combined reception device or combination emitter (2) and transmitter or receiver (1) is equipped with piezoelectric (8) between preceding coupling (7) and back backing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93226594 CN2186400Y (en) | 1993-11-17 | 1993-11-17 | Ultrasonic energy transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93226594 CN2186400Y (en) | 1993-11-17 | 1993-11-17 | Ultrasonic energy transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2186400Y true CN2186400Y (en) | 1994-12-28 |
Family
ID=33804171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93226594 Expired - Fee Related CN2186400Y (en) | 1993-11-17 | 1993-11-17 | Ultrasonic energy transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2186400Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017075888A1 (en) * | 2015-11-06 | 2017-05-11 | 中国科学院深圳先进技术研究院 | Radial-mode-based single-element ultrasonic low-frequency transducer |
-
1993
- 1993-11-17 CN CN 93226594 patent/CN2186400Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017075888A1 (en) * | 2015-11-06 | 2017-05-11 | 中国科学院深圳先进技术研究院 | Radial-mode-based single-element ultrasonic low-frequency transducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |