CN103399088B - A kind of rotary type multichannel ultrasound wave sending and receiving apparatus and method - Google Patents
A kind of rotary type multichannel ultrasound wave sending and receiving apparatus and method Download PDFInfo
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- CN103399088B CN103399088B CN201310319383.4A CN201310319383A CN103399088B CN 103399088 B CN103399088 B CN 103399088B CN 201310319383 A CN201310319383 A CN 201310319383A CN 103399088 B CN103399088 B CN 103399088B
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Abstract
The invention provides a kind of rotary type multichannel ultrasound wave sending and receiving apparatus and method, wherein device comprises rotary module and defectoscope main frame, rotates electric capacity connect between described rotary module and defectoscope main frame by one.The invention has the beneficial effects as follows: adopt rotary type multichannel ultrasonic flaw detecting device, can in the different work periods, select different probes and channels operation, same rotation electric capacity is used to carry out control signal and ultrasonic signals propagate respectively in the different periods, decrease the quantity rotating electric capacity, simplify the structure of device, decrease flaw detection blind area, add the reliability of device, be specially adapted to the situation of probe rotary tube channel ultrasonic wave inspection.
Description
technical field:
The invention belongs to industrial ultrasonic wave inspection field, particularly a kind of rotary type multichannel ultrasound wave sending and receiving apparatus and method.
background technology:
In probe rotary tube channel ultrasonic wave inspection, the mode that ultrasonic probe rotates, steel pipe passes usually is adopted to detect a flaw.When the probe is rotated, probe realizes non contact signal transmission with the method that the Signal transmissions between ultra-sonic defect detector adopts capacitance sheet or telefault to be coupled.For capacitive coupling, electric capacity generally uses two panels to make the copper ring sheet of relative rotary motion, and a slice is connected with probe, is arranged on the rotor of rotating mechanism together, another sheet is fixed on the stator of rotating mechanism, and the capacitance sheet on stator is directly connected with ultra-sonic defect detector.In traditional device, each probe needs use one group of capacitance sheet to realize being connected with the noncontact of ultra-sonic defect detector.For the flaw detection of larger diameter steel pipe, or for the more steel tube flaw detection of probe kind, probe quantity must increase, and therefore capacitance sheet increasing number, can cause installation difficulty to increase thus, and installing space increases, and flaw detection blind area increases, the reliability reduction of flaw detection.What the present invention adopted is rotary type multichannel ultrasound wave sending and receiving apparatus, the transmitting and receiving module of ultra-sonic defect detector is arranged on rotating mechanism together with probe and rotates, multiple probes of work in series use same rotation electric capacity, thus reduce the usage quantity rotating electric capacity, improve the reliability that equipment is installed, decrease flaw detection blind area, effectively solve the problems brought because probe quantity increases.
summary of the invention:
Technical matters to be solved by this invention is that multiple path ultrasonic flaw detector is divided into hyperchannel transmitting and receiving module and defectoscope main frame two parts, the former is arranged on rotating mechanism and rotates together with probe, one group is used to rotate electric capacity the Multi probe Signal transmissions of work in series to the latter, reduce the usage quantity rotating electric capacity, decrease flaw detection blind area, improve the reliability of device work.
The technical solution used in the present invention is:
The invention provides a kind of rotary type multichannel ultrasound wave sending and receiving apparatus, this device comprises rotary module and defectoscope main frame, rotates electric capacity connect between described rotary module and defectoscope main frame by one.
The present invention also provides a kind of rotary type multichannel ultrasound wave method for transmitting and receiving, wherein completing the time once launching, receive and gather ultrasonic signal is called a work period, the time of one-period is divided into control time and receives the period, the step of described control time and reception period is:
1) at control time, the synchronizing signal that master control FPGA circuit produces and control signal are encoded into square wave and are encoded by control signal coding circuit, coded signal is transferred in control signal decoding circuit by rotation electric capacity and decodes, preposition FPGA circuit reads decoded signal, and control hyperchannel radiating circuit transmitting ultrasound information, complete the work of control time;
2) in the reception period, first the ultrasonic signal received is received by hyperchannel receiving circuit, then described pre-amplification circuit is selected to amplify by described preposition FPGA circuit, ultrasonic signal after amplification is transferred to described controllable gain amplifying circuit by described rotation electric capacity again, amplify further under described master control FPGA control circui, finally by analog-digital conversion circuit as described ultrasonic signal digitizing, pass through master control FPGA circuit transmission again to defectoscope CPU and interface bus circuit, complete and receive period work.
The invention has the beneficial effects as follows: adopt rotary type multichannel ultrasonic flaw detecting device, can in the different work periods, select different probes and channels operation, same rotation electric capacity is used to carry out control signal and ultrasonic signals propagate respectively in the different periods, decrease the quantity rotating electric capacity, simplify the structure of device, decrease flaw detection blind area, add the reliability of device, be specially adapted to the situation of probe rotary tube channel ultrasonic wave inspection.
accompanying drawing illustrates:
Fig. 1 is existing probe rotary tube multi-channel ultrasonic flaw-inspecting device principle of work block diagram;
Fig. 2 is rotary type multichannel ultrasonic flaw detecting device principle of work block diagram of the present invention,
Fig. 3 is the signal transmission sequential chart in the present invention.
Description of reference numerals:
1-pops one's head in, 2-radiating circuit, 3-receiving circuit, the preposition FPGA circuit of 4-, 5-control signal decoding circuit, 6-pre-amplification circuit, 7-rotates electric capacity, 8-control signal coding circuit, 9-master control FPGA circuit, 10-controllable gain amplifying circuit, 11-analog to digital conversion circuit, 12-defectoscope CPU and bus interface circuit, 13-rotary module, 14-defectoscope main frame, 15-control time, 16-receives the period, 17-control channel and preamplification signal, 18-synchronizing signal, 19-coded signal, 20-decoded signal, 21-ultrasound wave trigger pip, 22-ultrasonic signal.
Embodiment
The present invention is further described below in conjunction with embodiment.Scope of the present invention is not by the restriction of these embodiments.
See accompanying drawing 1, existing probe rotary tube multichannel ultrasonic failure detector, comprise rotary module 10 ' and defectoscope main frame 11 ', wherein rotary module 10 ' comprises multiple probe 1 ', probe 1 ' rotates together with rotating mechanism, is connected with defectoscope main frame 11 ' by rotating electric capacity 2 '.Defectoscope main frame 11 ' comprises hyperchannel radiating circuit 3 ', hyperchannel receiving circuit 4 ', pre-amplification circuit 5 ', master control FPGA circuit 6 ', controllable gain amplifying circuit 7 ', analog to digital conversion circuit 8 ' and defectoscope CPU and bus interface circuit 9 '.In existing apparatus, each probe 1 ' must use one to rotate electric capacity 2 '.
For the flaw detection of larger diameter steel pipe, or for the more steel tube flaw detection of probe kind, adopt the device of prior art, probe quantity must increase, and therefore capacitance sheet increasing number, can cause installation difficulty to increase thus, installing space increases, and flaw detection blind area increases, and the reliability of flaw detection reduces.
The present invention is divided into two parts defectoscope circuit.Part I is rotary module 13, comprises probe 1, hyperchannel radiating circuit 2, hyperchannel receiving circuit 3, pre-amplification circuit 6, and adds preposition FPGA circuit 4 and control signal decoding circuit 5.Part II is defectoscope main frame 14, comprises master control FPGA circuit 9, controllable gain amplifying circuit 10, analog to digital conversion circuit 11 and defectoscope CPU and interface bus circuit 12, and adds control signal coding circuit 8.Each circuit of Part I rotates together with rotating mechanism with probe, rotates electric capacity 7 be connected with Part II circuit by one.All probes can only use one to rotate electric capacity 7.
The principle of work of described rotary type multichannel ultrasound wave sending and receiving apparatus is as follows:
Probe rotary tube multichannel ultrasonic failure detector completes once to be launched, to receive and the time of ultrasonic signal acquisition is called a work period.The time of one-period is divided into control time 15 and receives the period 16.
At control time 15, the synchronizing signal that master control FPGA circuit 9 produces and control signal are encoded into square wave and are encoded by Signal coding circuit 8, coded signal is transferred in control signal decoding circuit 5 by rotation electric capacity 7 and decodes, preposition FPGA circuit 4 reads decoded signal, and control radiating circuit 2 and launch ultrasound information, complete control time 15 and work.
In the reception period 16, first the ultrasonic signal received is received by receiving circuit 3, then pre-amplification circuit 6 is selected to amplify by preposition FPGA circuit 4, ultrasonic signal after amplification is transferred to controllable gain amplifying circuit 10 by rotating electric capacity 7 again, amplify further under master control FPGA circuit 9 controls, finally by analog to digital conversion circuit 11 ultrasonic signal digitizing, then be transferred in defectoscope CPU12 by master control FPGA9, complete receive the period 16 work.
See accompanying drawing 3, the flow process of probe rotary tube multichannel ultrasonic failure detector each several part work is: when a work period starts, in rotary module 13, preposition FPGA circuit 4 is operated in the preparatory stage, the master control FPGA circuit 9 of defectoscope main frame 14 generates control channel and preamplification signal 17 and synchronizing signal 18 under the control of defectoscope CPU, coded signal 19 is produced by control signal coding circuit 8, be transferred in control signal decoding circuit 5 through rotating electric capacity 7, generating solution coded signal 20, radiating circuit 2 is controlled after reading decoded signal 20 by preposition FPGA circuit 4 again, and produce trigger pip 21, complete the work of control time 15, the probe 1 be stimulated produces ultrasonic signal 22, after pre-amplification circuit 6 amplifies, the controllable gain amplifying circuit 10 of defectoscope main frame 14 is transferred to again by rotating electric capacity 7, amplify further under master control FPGA circuit 9 controls, finally by analog to digital conversion circuit 11 ultrasonic signal digitizing, be transferred in defectoscope CPU12 by master control FPGA circuit 9 again, complete the work receiving the period 16.From sequential, master control FPGA circuit 9 is active states, the passive duty of preposition FPGA circuit 4, control time 15 and receive period 16 non-overlapping copies, mutually unaffected, and control signal coding circuit 8 and control signal decoding circuit 5 all work at control time 15, be in closed condition in the reception period 16.
Beneficial effect of the present invention is the partial circuit of defectoscope to separate with main frame, be arranged in rotating mechanism together with probe, achieve the function that use one rotates the work of Capacity control hyperchannel and the multiple probe signal of transmission, decrease and rotate electric capacity usage quantity, simplify the structure of instrument, decrease flaw detection blind area, be specially adapted to the situation of Large Diameter Pipeline, probe rotary tube channel ultrasonic wave inspection that number of channels is many.
Be described with reference to the exemplary embodiment of accompanying drawing to the application above.Those skilled in the art should understand that; above-mentioned embodiment is only used to the object that illustrates and the example of lifting; instead of be used for limiting; the any amendment done under all instructions in the application and claims, equivalently to replace, all should be included in and this application claims in the scope of protection.
Claims (8)
1. a rotary type multichannel ultrasound wave sending and receiving apparatus, this device comprises rotary module (13) and defectoscope main frame (14), it is characterized in that, rotate electric capacity (7) by one between described rotary module (13) and defectoscope main frame (14) and connect;
Described rotary module (13) comprises probe (1), hyperchannel radiating circuit (2), hyperchannel receiving circuit (3), preposition FPGA circuit (4), control signal decoding circuit (5) and pre-amplification circuit (6).
2. sending and receiving apparatus according to claim 1, it is characterized in that, described defectoscope main frame (14) comprises control signal coding circuit (8), master control FPGA circuit (9), controllable gain amplifying circuit (10), analog to digital conversion circuit (11) and defectoscope CPU and interface bus circuit (12).
3. sending and receiving apparatus according to claim 2, it is characterized in that, the synchronizing signal that described master control FPGA circuit (9) produces and control signal are encoded into square wave, encoded by control signal coding circuit (8) again, coded signal is transferred in control signal decoding circuit (5) by described rotation electric capacity (7) and decodes, described preposition FPGA circuit (4) reads decoded signal, and controls hyperchannel radiating circuit (2) transmitting ultrasound information.
4. sending and receiving apparatus according to claim 2, it is characterized in that, first the ultrasonic signal received is received by hyperchannel receiving circuit (3), then described pre-amplification circuit (6) is selected to amplify by described preposition FPGA circuit (4), ultrasonic signal after amplification is transferred to described controllable gain amplifying circuit (10) by described rotation electric capacity (7) again, amplify further under described master control FPGA circuit (9) controls, finally by analog-digital conversion circuit as described (11) ultrasonic signal digitizing, defectoscope CPU and interface bus circuit (12) is transferred to again by master control FPGA circuit (9).
5. a rotary type multichannel ultrasound wave method for transmitting and receiving, adopt the sending and receiving apparatus as described in one of claim 2-4, wherein completing the time once launching, receive and gather ultrasonic signal is called a work period, the time of one-period is divided into control time and receives the period, it is characterized in that, the step of described control time and reception period is:
1) at control time, the synchronizing signal that master control FPGA circuit (9) produces and control signal are encoded into square wave, encoded by control signal coding circuit (8) again, coded signal is transferred in control signal decoding circuit (5) by rotation electric capacity (7) and decodes, preposition FPGA circuit (4) reads decoded signal, and control hyperchannel radiating circuit (2) transmitting ultrasound information, complete the work of control time;
2) in the reception period, first the ultrasonic signal received is received by hyperchannel receiving circuit (3), then described pre-amplification circuit (6) is selected to amplify by described preposition FPGA circuit (4), ultrasonic signal after amplification is transferred to described controllable gain amplifying circuit (10) by described rotation electric capacity (7) again, amplify further under described master control FPGA circuit (9) controls, finally by analog-digital conversion circuit as described (11) ultrasonic signal digitizing, defectoscope CPU and interface bus circuit (12) is transferred to again by master control FPGA circuit (9), complete and receive period work.
6. method for transmitting and receiving according to claim 5, it is characterized in that, described control time and receive period non-overlapping copies, mutually unaffected, and control signal coding circuit (8) and control signal decoding circuit (5) are all in control time work, be in closed condition in the reception period.
7. method for transmitting and receiving according to claim 5, it is characterized in that, wherein the transmitting procedure of control time signal is: when a work period starts, in rotary module (13), preposition FPGA circuit (4) is operated in the preparatory stage, the master control FPGA circuit (9) of defectoscope main frame (14) generates control channel signal and preamplification signal and synchronizing signal under the control of defectoscope CPU, coded signal is produced by control signal coding circuit (8), be transferred in control signal decoding circuit (5) through rotating electric capacity (7), generating solution coded signal (20), read decoded signal (20) by preposition FPGA circuit (4) again and control hyperchannel radiating circuit (2) afterwards, and produce trigger pip, complete the work of control time.
8. method for transmitting and receiving according to claim 5, is characterized in that, wherein receiving the ultrasonic signal received in the period is produced by the probe be stimulated (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310319383.4A CN103399088B (en) | 2013-07-26 | 2013-07-26 | A kind of rotary type multichannel ultrasound wave sending and receiving apparatus and method |
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| CN201310319383.4A CN103399088B (en) | 2013-07-26 | 2013-07-26 | A kind of rotary type multichannel ultrasound wave sending and receiving apparatus and method |
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| CN103399088A CN103399088A (en) | 2013-11-20 |
| CN103399088B true CN103399088B (en) | 2015-09-30 |
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| CN201310319383.4A Expired - Fee Related CN103399088B (en) | 2013-07-26 | 2013-07-26 | A kind of rotary type multichannel ultrasound wave sending and receiving apparatus and method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105044219A (en) * | 2015-08-05 | 2015-11-11 | 北京波易达成像技术有限公司 | Rotation-type multi-channel ultrasonic flaw detection signal coupling device |
| CN107422042A (en) * | 2017-06-21 | 2017-12-01 | 株洲时代电子技术有限公司 | A kind of rail examination work data is shown and storage system |
Citations (5)
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|---|---|---|---|---|
| CN86207327U (en) * | 1986-09-30 | 1987-06-10 | 无锡钢铁厂 | Ultrasonic flaw detector with rotary probe |
| CN2567574Y (en) * | 2002-09-17 | 2003-08-20 | 北京有色金属研究总院 | Multi-channel capacity coupler |
| CN2574053Y (en) * | 2002-10-16 | 2003-09-17 | 北京有色金属研究总院 | Capacitance probe rotary ultrasonic flow detector |
| CN102288676A (en) * | 2011-05-18 | 2011-12-21 | 斯肯威（上海）工业检测科技有限公司 | Device for completely recording online fault detection data of ultrasonic rotary probe and application thereof |
| CN203365392U (en) * | 2013-07-26 | 2013-12-25 | 北京波易达成像技术有限公司 | Rotation type multi-channel ultrasonic transmitting and receiving device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5955670A (en) * | 1996-11-15 | 1999-09-21 | Ue Systems, Inc | Ultrasonic leak detecting apparatus |
| JP5649199B2 (en) * | 2011-04-15 | 2015-01-07 | 新日鐵住金株式会社 | Rotary transformer for rotary ultrasonic flaw detector and rotary ultrasonic flaw detector using the same |
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2013
- 2013-07-26 CN CN201310319383.4A patent/CN103399088B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86207327U (en) * | 1986-09-30 | 1987-06-10 | 无锡钢铁厂 | Ultrasonic flaw detector with rotary probe |
| CN2567574Y (en) * | 2002-09-17 | 2003-08-20 | 北京有色金属研究总院 | Multi-channel capacity coupler |
| CN2574053Y (en) * | 2002-10-16 | 2003-09-17 | 北京有色金属研究总院 | Capacitance probe rotary ultrasonic flow detector |
| CN102288676A (en) * | 2011-05-18 | 2011-12-21 | 斯肯威（上海）工业检测科技有限公司 | Device for completely recording online fault detection data of ultrasonic rotary probe and application thereof |
| CN203365392U (en) * | 2013-07-26 | 2013-12-25 | 北京波易达成像技术有限公司 | Rotation type multi-channel ultrasonic transmitting and receiving device |
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