CN202305482U - Ultrasonic transducer for inspection hole parts - Google Patents
Ultrasonic transducer for inspection hole parts Download PDFInfo
- Publication number
- CN202305482U CN202305482U CN 201120418296 CN201120418296U CN202305482U CN 202305482 U CN202305482 U CN 202305482U CN 201120418296 CN201120418296 CN 201120418296 CN 201120418296 U CN201120418296 U CN 201120418296U CN 202305482 U CN202305482 U CN 202305482U
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- Prior art keywords
- ultrasonic transducer
- hole type
- type parts
- wafer
- ultrasonic
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
An ultrasonic transducer for inspection hole parts is characterized by comprising a casing, a wafer and a cable conductor, which together form an ultrasonic probe, wherein the ultrasonic probe is arranged in the middle of a hole part; a couplant layer is arranged between the ultrasonic probe and the hole part; and the wafer is made from a piezoelectric composite material. The ultrasonic transducer for the inspection hole parts has the advantages of favorable detection resolution and sensitivity, and can be used for ultrasonic detection of holes in aircraft engines, particularly hole parts with binding layers.
Description
Technical field
The utility model relates to the cannot-harm-detection device, particularly a kind of ultrasonic transducer that detects hole type parts.
Background technology
For security and the reliability that guarantees that aerial motor spare part uses; Must carry out comprehensive quality assessment to it through nondestructive examination; But for baroque parts; Some position is difficult to carry out nondestructive examination, like poroid positions such as bolt hole, axis holes, must guarantee the property examined of part through special device.EDDY CURRENT is mainly adopted in domestic detection to these class positions, hole at present; It is little that but the shortcoming of this method one is the depth of penetration; Can only find the defective on surface or nearly surface; The 2nd, detection sensitivity is relatively low, and is poor to the detecting reliability of less crackle, and the 3rd, it is bigger that this detection method is influenced by the curvature of design of part.Therefore, be necessary to study new pick-up unit and improve flaw detection demand hole type parts.
The utility model content
The purpose of the utility model is in order to realize the autoscan of hole type parts to be checked that the spy provides a kind of ultrasonic transducer that detects hole type parts.
The utility model provides a kind of ultrasonic transducer that detects hole type parts, it is characterized in that: the ultrasonic transducer of described detection hole type parts comprises housing 1, wafer 2, and cable 3 common formation ultrasonic probes, sound absorption block places chip back surface;
Wherein: ultrasonic probe places the centre of hole type parts, is couplant layer 4 therebetween.
Described wafer 2 is a piezo-electricity composite material spare.
Adopt a kind of novel piezo-electricity composite material wafer; Utilize advantages such as its high tension electricity coefficient, high-frequency, the low mechanical quality factor; As backing, reach higher detection resolution by the high damping acoustic absorbant, improved the depth of penetration that detects simultaneously greatly; And behind the suitable mechanical hook-up of configuration, also can realize automatic scanning to hole type parts.
Acoustic characteristic to seized part material and wafer material is analyzed, and according to sound transmission and principle of reflection, Theoretical Calculation goes out the acoustic impedance value of suitable sound-absorption material, and verifies through a large amount of tests, obtains the wideband-short pulse waveform of high resolution; It two is the calculating and the measurement of focal length, and this is very important to guaranteeing that when detecting energy transducer focus can accurately reach seized position.This patent passes through the focal length of the accurate measurement transducer of oscilloscope method in water, and designs the transducer wafer size according to accessory size and required focal length, makes every effort to reach the accuracy of detection and location.
The advantage of the utility model:
The ultrasonic transducer of the described detection hole type parts of the utility model has good detection resolving power and sensitivity, can be used in hole type parts in the aeromotor, especially has in the ultrasound detection of compound substance hole type parts of binding layer.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:
Fig. 1 is for detecting the ultrasonic transducer synoptic diagram of hole type parts;
Fig. 2 is a ultrasound wave focusing principle synoptic diagram;
5 is focus among the figure, and 6 is the workpiece binding layer.
Embodiment
Present embodiment provides a kind of ultrasonic transducer that detects hole type parts, it is characterized in that: the ultrasonic transducer of described detection hole type parts comprises housing 1, wafer 2, and cable 3 common formation ultrasonic probes, sound absorption block places chip back surface;
Wherein: ultrasonic probe places the centre of hole type parts, is couplant layer 4 therebetween.
Described wafer 2 is a piezo-electricity composite material spare.
Adopt a kind of novel piezo-electricity composite material wafer; Utilize advantages such as its high tension electricity coefficient, high-frequency, the low mechanical quality factor; As backing, reach higher detection resolution by the high damping acoustic absorbant, improved the depth of penetration that detects simultaneously greatly; And behind the suitable mechanical hook-up of configuration, also can realize automatic scanning to hole type parts.
Claims (2)
1. ultrasonic transducer that detects hole type parts; It is characterized in that: the ultrasonic transducer of described detection hole type parts comprises housing (1); Wafer (2), cable (3), housing (1), wafer (2) and cable (3) constitute ultrasonic probe jointly; Wherein: ultrasonic probe places the centre of hole type parts, is couplant layer (4) therebetween.
2. according to the ultrasonic transducer of the described detection hole type parts of claim 1, it is characterized in that: described wafer (2) is a piezo-electricity composite material spare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120418296 CN202305482U (en) | 2011-10-28 | 2011-10-28 | Ultrasonic transducer for inspection hole parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120418296 CN202305482U (en) | 2011-10-28 | 2011-10-28 | Ultrasonic transducer for inspection hole parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202305482U true CN202305482U (en) | 2012-07-04 |
Family
ID=46374354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120418296 Expired - Fee Related CN202305482U (en) | 2011-10-28 | 2011-10-28 | Ultrasonic transducer for inspection hole parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202305482U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763757A (en) * | 2019-11-21 | 2020-02-07 | 西南石油大学 | Device and method for testing crude oil solid phase deposition by pulse reflection |
-
2011
- 2011-10-28 CN CN 201120418296 patent/CN202305482U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763757A (en) * | 2019-11-21 | 2020-02-07 | 西南石油大学 | Device and method for testing crude oil solid phase deposition by pulse reflection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20181028 |