CN1414384A - Preemission, amplification device of digital multi-pathage ultrasonic flaw detector - Google Patents
Preemission, amplification device of digital multi-pathage ultrasonic flaw detector Download PDFInfo
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- CN1414384A CN1414384A CN 02133211 CN02133211A CN1414384A CN 1414384 A CN1414384 A CN 1414384A CN 02133211 CN02133211 CN 02133211 CN 02133211 A CN02133211 A CN 02133211A CN 1414384 A CN1414384 A CN 1414384A
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Abstract
The invented device is the prepositional emitting-amplifying device for supersonic flaw detector and is composed of host system, pre-emitting board, pre-receiving and amplifying board, 8-cycle logic controller and 3-bit encoder, main board for amplifying and sampling as well as industrial controller. Each unit includes one pre-emitting board as well as one pre-receiving and amplifying board with 8 channels. Thus, the device containing N units constitutes 8XN channels, where (N=1,2,...8). Only 2 logic signal wires are needed to control the ordered operations of the 8XN channels. Only one signal wire is needed to output the ultrasonic signal of one unit with 8 channels. The length of the wire between the pre-positioned board and the host system can be extended to more than 30m with the signal transmission guaranteed.
Description
Technical field the invention belongs to a kind of flaw detection probe apart from the flaw detection main frame the preposition emission of effective long line conveying type hyperchannel, multiplying arrangement when far away, particularly relate to a kind of preposition emission, multiplying arrangement of digital multiple path ultrasonic flaw detector.
The preposition emission of hyperchannel, multiplying arrangement that background technology is commonly used at present, its signal transmssion line and logic control line are more, particularly when the more and wiring distance of port number is longer, many and the length because of the cable radical, so quantities is big, reliability reduces, be subject to on-the-spot the interference, the on-the-spot adaptive faculty of total system descends greatly.
Summary of the invention the objective of the invention is for reduce the radical of signal transmssion line and logic control line as far as possible, to improve system reliability and to reduce cost, can satisfy simultaneously long line transmission and hyperchannel again and expand flexibly, use requirement easily, a kind of preposition emission, multiplying arrangement of digital multiple path ultrasonic flaw detector is provided.
The preposition emission of the digital multiple path ultrasonic flaw detector of the present invention, multiplying arrangement content Description:
The preposition emission of the digital multiple path ultrasonic flaw detector of the present invention, multiplying arrangement, be by host computer system, preposition expelling plate, plate is amplified in preposition reception, 8 circle logic controllers and 3 scramblers, the main sampling plate that amplifies, industrial computer constitutes, it is characterized in that: adopt the 18 preposition expelling plate of passage and the 18 preposition reception of passage to amplify plate, forming 1 passage with per 8 serial periodic duties is an elementary cell, 2 circulations are arranged, 4 circulations, 5 circulations, 6 circulations, the multiple circulation pattern of 8 circulations, be installed on apart from position far away more than the host computer system 30m, n (n=1,2,8) individual elementary cell parallel running can be formed the preposition emission of the ultra-sonic defect detector of 8 * n passage, multiplying arrangement; In front device and host computer system, have 8 circle logic controllers and 3 scramblers of two groups of same structures, have 8 circle logic gating units and controlled by 3 scramblers on the preposition expelling plate of 8 passages on the preposition reception amplification of the 8 passages plate; Adopt 2 logic control lines and 1 signal transmssion line between front device and the host computer system, promptly adopt 3 signal wires to realize that the front device of 8 serial periodic duty passages is connected with whole signals between the host computer system; N (n=1,2 ... 8) individual 8 passage elementary cell parallel runnings, its logic control line is a common line, the logic control line of 8 * n channel system still is 2, by main shake signal (" Fm ") and reset signal (" 0 "), realizes the work in order synchronously between front device and the host computer system.
Adopt pulsqe distributor (such as CD4017), form 8 circle logic controllers of 1～8 channel cycle work, and real-time Protection Counter Functions is arranged; Adopt 3 triggers (such as d type flip flop CD4013), form 3 scramblers selecting 1～8 passage sequential in real time, and real-time Protection Counter Functions is arranged.And, 8 circle logic controllers and 3 public 1 reset signals of scrambler.
No matter 8 * n (n=1,2 ... 8) what value the n of system gets, and when n preposition emission, when the multiplying arrangement elementary cell is in the parallel running state, its radical remains unchanged and is constantly equal to 2.
Adopt multiway analog switch (such as CD4051), form preposition reception and amplify the logic gating unit of plate, by 3 scrambler controls in the front device, with 8 ultrasonic signals that work alone in each preposition emission, the multiplying arrangement elementary cell, draw with a single line, and, realize the single line transmission of per 8 road ultrasonic signals through the long line drive circuit transmission of impedance matching.
Employing has the transistor emitter follower (such as 2SC1815) of enough electric current amplifying powers, makes the resistance of its emitter resistance and transmission line impedance be complementary, thereby guarantees that long line transmitted waveform is undistorted, unattenuated and enough driving forces are arranged.
Can be by method simplification as shown in Figure 5, the translation function with circulation patterns such as 2 circulations, 4 circulations, 5 circulations, 6 circulations, 8 circulations is placed on and realizes in preposition emission, the multiplying arrangement, thereby can omit 8 circle logic controllers in the host computer system.
Can simplify by method as shown in Figure 6, with 8 the tunnel enter ultrasonic signals that preposition reception amplifies plate carry out amplitude limit (such as diode and 1 resistance) respectively with 2 reverse parallel connections and import, output impedance conversion (such as using 3SK59), send into the input end of multiway analog switch earlier, under the sequential control of 3 scramblers, output terminal single line by this analog switch is drawn, and unites then and is amplified by a pre-amplification circuit.
The present invention compares with existing conventional method, have that the signal wire radical is few, easy construction, passage expansion flexibly and improve the advantage that system signal noise ratio, long line transmission signals are not suffered a loss.
Description of drawings
Fig. 1 is the preposition emission of digital multiple path ultrasonic flaw detector, multiplying arrangement structured flowchart
Fig. 2 is the preposition expelling plate electrical schematic diagrams of 8 passages
Fig. 3 is host computer system 8 circle logic controllers and 3 scrambler electrical schematic diagrams
Fig. 4 is that the plate electrical schematic diagram is amplified in the preposition reception of 8 passages
Fig. 5 is the preposition expelling plate of simple type 8 passages and 3 scrambler electrical schematic diagrams of host computer system
Fig. 6 is that the plate electrical schematic diagram is amplified in the preposition reception of simple type 8 passages
The preposition emission of the digital multiple path ultrasonic flaw detector of embodiment the present invention, multiplying arrangement are to realize like this.Further specify in conjunction with the accompanying drawings, see that Fig. 1 is the preposition emission of digital multiple path ultrasonic flaw detector, multiplying arrangement structured flowchart, be by: host computer system 9～24, preposition expelling plate 1A～8A, preposition reception amplify plate 1B～8B, host computer system 8 circle logic controllers and 3 scramblers 9～16, mainly amplify sampling plate 17～24, industrial computers 25 constitute, be that passage with per 8 serial periodic duties is an elementary cell, amplify plate (Fig. 3) comprising the one 8 preposition expelling plate of passage (Fig. 2) and the one 8 preposition reception of passage.On the preposition expelling plate of 8 passages, have 8 circle logic controllers and 3 scramblers, on the preposition reception amplification of 8 passages plate, have 8 circle logic gating units, and controlled by 3 scramblers on the preposition expelling plate of 8 passages.Adopt 2 logic control lines (main shake 1 of signal, 1 of reset signal) and 1 signal transmssion line between front device and the host computer system, promptly adopt the front device of 8 serial periodic duty passages of 3 signal wires realizations to be connected with whole signals between the host computer system.Its logic control line is a common line, and the logic control line of 8 * n channel system still is 2 and remains unchanged that just the transmission line of high-frequency ultrasonic signal increases to the n root, and promptly whole signal wire radicals of 8 * n passage are the 2+n root.Whole signal wire radicals such as 8 * 8=64 channel system are the 2+8=10 root.
See that Fig. 2 is the preposition expelling plate electrical schematic diagrams of 8 passages, input signal " Fm " is industrial computer sends in the hyperchannel fault detection system the master time sequential pulse (the main signal that shakes) that shakes, and is the synchronic command pulse of total system.Its recurrence interval, be working time of 1 passage in preposition emission, the multiplying arrangement elementary cell.For making slightly leading echo waveform sweep time in the display system, the main signal " Fm " that shakes is through reverser IC1, IC2 shaping with through R2, W1, C1 time-delay (about 20 μ s) and again after reverser IC3, IC4 shaping, form the time sequential pulse " Fd " of time-delay, send into pulsqe distributor IC12 (such as CD4017).Pulsqe distributor can carry out the distribution of different circulation patterns to the time sequential pulse of " CLK " end input, such as 2 circulations, 4 circulations, 5 circulations, 6 circulations, 8 circulations, 10 circulations etc.Change the zero clearing cycle of " RST " end, then circulation pattern changes thereupon.If the zero clearing cycle is 8 " Fd " cycles just, then pulsqe distributor is promptly formed 8 circle logic controllers with 8 circulation pattern work.Trigger (such as CD4013) IC9, IC10, IC11 form 3 scramblers, and " Fd " time sequential pulse is carried out 3 codings, with difference work at present passage.Promptly 3 of 3 grades of frequency dividers Q ends are exported Q
1, Q
2, Q
3Form 3 binary coded signals, 8 output states of respective pulses divider are differentiated the work at present passage in real time.Q
1, Q
2, Q
3Use " a ", " b ", " c " to represent its binary 3 figure places respectively.The zero clearing of 3 triggers is with public 1 reset signal that is provided by host computer system of pulsqe distributor " 0 ", to reach the synchronous working of total system.R6, C2 form very little time-delay (such as 1 μ s) circuit, to guarantee 3 grades of frequency divider reliably workings.3 coded signals " a ", " b ", " c " drive output through 3 emitter follower TR2, TR3, TR4, remove to control the logic gating unit that plate is amplified in preposition reception.
Individual pulse from the different output terminals of pulsqe distributor are exported in order triggers the radiating circuit of 1～8 passage respectively through reverse driven (such as CD4049) IC17～IC24, and encourages corresponding probe.Radiating circuit is identical with common single channel ultrasonic wave defectoscope radiating circuit.
Seeing Fig. 3, is 8 circle logic controllers and 3 the scrambler electrical schematic diagrams that are arranged in the host computer system, and its structure and principle of work are identical with preposition expelling plate (Fig. 1).Selector switch K1 puts diverse location, can change the zero clearing cycle of pulsqe distributor IC12, thereby changes the systemic circulation pattern, such as 2 circulations, 4 circulations, 5 circulations, 6 circulations, 8 circulations etc.This reset signal " 0 " exports preposition expelling plate to after emitter follower TR6 drives.The master who sends from the industrial computer signal " Fm " that shakes after emitter follower TR5 drives, also exports preposition expelling plate to.The time sequential pulse " Fd " of time-delay and 3 coded signals " a ", " b ", " c " export host computer system to main amplifies, sampling plate, when providing survey for it and the foundation of selector channel.Only there are main two signal wires of signal " Fm " and reset signal " 0 " that shake to be connected between host computer system and preposition emission, the multiplying arrangement.
See Fig. 4, be that the plate electrical schematic diagram is amplified in the preposition reception of 8 passages, multiway analog switch IC1 (such as CD4051) is by 3 coded signals " a ", " b ", " c " control timing, the logic gating unit of forming 1～8 passage, with 8 the tunnel independently ultrasonic signal finally draw with 1 single line.Owing to earlier the preposition reception amplifying circuit of one-level is arranged, so help improving system signal noise ratio.Preposition reception amplifying circuit is identical with the 1st grade of amplifying circuit of common single channel defectoscope.The impedance matching driving circuit of C1, R1 and TR1, the transmission of R2, R3 group growth line, transistor emitter follower TR1 (such as 2SC1815) has enough electric current amplifying power and frequency span.R3 looks long line transfer impedance, and optional 300 Ω or different resistances such as 75 Ω, 50 Ω through testing definite resistance, extend to 30m when above to guarantee length of transmission line in optional 20～200 Ω scopes of R2, and high-frequency ultrasonic signal is undistorted, unattenuated.
Seeing Fig. 5, is 3 scrambler electrical schematic diagrams of preposition expelling plate of simple type 8 passages and host computer system.K1 is placed on the preposition expelling plate with the circulation pattern selector switch, thereby has omitted 8 circle logic controllers of host computer system, can reduce system cost.But operate in front device because of changing circulation pattern, and front device is far away from the residing machine room of host computer system, so operate some inconvenience.In the occasion that does not often change circulation pattern, this method has advantage.
Seeing Fig. 6, is that the plate electrical schematic diagram is amplified in the preposition reception of simple type.From 8 ultrasonic signals of introducing of ultrasonic probe independently, respectively through R1, D1, D2 amplitude limit and through dual gate FET (such as 3SK59) import, the output impedance conversion, deliver to multiway analog switch IC1 (such as CD4051), by only amplifying after the output of output terminal single line with 1 pre-amplification circuit, thereby than method shown in Figure 3, can save 7 pre-amplification circuits, reduce system cost.But method is not good as shown in Figure 3 for system signal noise ratio.When the system signal noise ratio requirement was not really high, this method had advantage.
Claims (7)
1, a kind of preposition emission of digital multiple path ultrasonic flaw detector, multiplying arrangement, be by host computer system, preposition expelling plate, plate is amplified in preposition reception, 8 circle logic controllers and 3 scramblers, the main sampling plate that amplifies, industrial computer constitutes, it is characterized in that: adopt the 18 preposition expelling plate of passage and the 18 preposition reception of passage to amplify plate, forming 1 passage with per 8 serial periodic duties is an elementary cell, 2 circulations are arranged, 4 circulations, 5 circulations, 6 circulations, the multiple circulation pattern of 8 circulations, be installed on apart from position far away more than the host computer system 30m, n (n=1,2,8) individual elementary cell parallel running can be formed the preposition emission of the ultra-sonic defect detector of 8 * n passage, multiplying arrangement; In front device and host computer system, have 8 circle logic controllers and 3 scramblers of two groups of same structures, have 8 circle logic gating units and controlled by 3 scramblers on the preposition expelling plate of 8 passages on the preposition reception amplification of the 8 passages plate; Adopt 2 logic control lines and 1 signal transmssion line between front device and the host computer system, promptly adopt 3 signal wires to realize that the front device of 8 serial periodic duty passages is connected with whole signals between the host computer system; N (n=1,2 ... 8) individual 8 passage elementary cell parallel runnings, its logic control line is a common line, the logic control line of 8 * n channel system still is 2, by main shake signal (" Fm ") and reset signal (" 0 "), realizes the work in order synchronously between front device and the host computer system.
2,8 circle logic controllers according to claim 1 and 3 scramblers is characterized in that: adopt pulsqe distributor, form 8 circle logic controllers of 1～8 channel cycle work, and real-time Protection Counter Functions is arranged; Adopt 3 triggers, form 3 scramblers selecting 1～8 passage sequential in real time, and real-time Protection Counter Functions is arranged, 8 circle logic controllers and 3 public 1 reset signals of scrambler.
3,2 global semaphore lines according to claim 1, it is characterized in that: no matter 8 * n (n=1,2 ... 8) what value the n of system's (or 2 * n, 4 * n, 5 * n, 6 * n system) gets, when n preposition emission, when the multiplying arrangement elementary cell is in the parallel running state, its radical remains unchanged and is constantly equal to 2.
4, the preposition emission of hyperchannel according to claim 1, multiplying arrangement, it is characterized in that: adopt multiway analog switch, form preposition reception and amplify the logic gating unit of plate, by 3 scrambler controls in the front device, with 8 ultrasonic signals that work alone in each preposition emission, the multiplying arrangement elementary cell, draw with a single line, and transmit, realize the single line transmission of per 8 road ultrasonic signals through the long line drive circuit of impedance matching.
5, long line drive circuit according to claim 4, it is characterized in that: adopt the transistor emitter follower that enough electric current amplifying powers are arranged, make the resistance and the transmission line impedance of its emitter resistance be complementary, thereby guarantee that long line transmitted waveform is undistorted, unattenuated and enough driving forces are arranged.
6,8 circle logic controllers according to claim 1 and 3 scramblers, it is characterized in that: can be the translation function of circulation patterns such as 2 circulations, 4 circulations, 5 circulations, 6 circulations, 8 circulations, be placed in preposition emission, the multiplying arrangement and realize, thereby can omit 8 interior circle logic controllers of host computer system.
7, the single line transmission method of per 8 road ultrasonic signals according to claim 4, it is characterized in that: 8 tunnel ultrasonic signals that enter preposition reception amplification plate can be carried out amplitude limit and input, output impedance conversion respectively, send into the input end of multiway analog switch earlier, under the sequential control of 3 scramblers, output terminal single line by this analog switch is drawn, and unites then and is amplified by a pre-amplification circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 02133211 CN1414384A (en) | 2002-10-18 | 2002-10-18 | Preemission, amplification device of digital multi-pathage ultrasonic flaw detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02133211 CN1414384A (en) | 2002-10-18 | 2002-10-18 | Preemission, amplification device of digital multi-pathage ultrasonic flaw detector |
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| CN1414384A true CN1414384A (en) | 2003-04-30 |
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| CN 02133211 Withdrawn CN1414384A (en) | 2002-10-18 | 2002-10-18 | Preemission, amplification device of digital multi-pathage ultrasonic flaw detector |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101067618B (en) * | 2007-06-08 | 2010-05-19 | 华中科技大学 | Multichannel ultrasonic collecting device for detecting nonmetal medium |
| CN102854253A (en) * | 2012-09-28 | 2013-01-02 | 北京交通大学 | Multi-channel ultrasonic fault detection single-line transmission signal system and method |
| CN108370236A (en) * | 2015-12-02 | 2018-08-03 | 蝴蝶网络有限公司 | Time gain compensation circuit and relevant apparatus and method |
| CN110261492A (en) * | 2019-05-14 | 2019-09-20 | 江苏大学 | A kind of method and device of Serial No. driving ultrasonic sensor |
| US11169248B2 (en) | 2015-12-02 | 2021-11-09 | Bfly Operations, Inc. | Multi-level pulser and related apparatus and methods |
| CN116058870A (en) * | 2023-03-06 | 2023-05-05 | 深圳英美达医疗技术有限公司 | Ultrasonic data processing method and device, imaging system and readable storage medium |
-
2002
- 2002-10-18 CN CN 02133211 patent/CN1414384A/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101067618B (en) * | 2007-06-08 | 2010-05-19 | 华中科技大学 | Multichannel ultrasonic collecting device for detecting nonmetal medium |
| CN102854253A (en) * | 2012-09-28 | 2013-01-02 | 北京交通大学 | Multi-channel ultrasonic fault detection single-line transmission signal system and method |
| CN102854253B (en) * | 2012-09-28 | 2014-10-01 | 北京交通大学 | Multi-channel ultrasonic fault detection single-line transmission signal system and method |
| CN108370236A (en) * | 2015-12-02 | 2018-08-03 | 蝴蝶网络有限公司 | Time gain compensation circuit and relevant apparatus and method |
| US11169248B2 (en) | 2015-12-02 | 2021-11-09 | Bfly Operations, Inc. | Multi-level pulser and related apparatus and methods |
| CN108370236B (en) * | 2015-12-02 | 2021-12-07 | 蝴蝶网络有限公司 | Time gain compensation circuit and related apparatus and method |
| US11215703B2 (en) | 2015-12-02 | 2022-01-04 | Bfly Operations, Inc. | Time gain compensation circuit and related apparatus and methods |
| CN114176629A (en) * | 2015-12-02 | 2022-03-15 | 蝴蝶网络有限公司 | Time gain compensation circuit and related apparatus and method |
| US11573309B2 (en) | 2015-12-02 | 2023-02-07 | Bfly Operations, Inc. | Time gain compensation circuit and related apparatus and methods |
| CN110261492A (en) * | 2019-05-14 | 2019-09-20 | 江苏大学 | A kind of method and device of Serial No. driving ultrasonic sensor |
| CN110261492B (en) * | 2019-05-14 | 2021-11-23 | 江苏大学 | Method and device for driving ultrasonic sensor by digital sequence |
| CN116058870A (en) * | 2023-03-06 | 2023-05-05 | 深圳英美达医疗技术有限公司 | Ultrasonic data processing method and device, imaging system and readable storage medium |
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| ASS | Succession or assignment of patent right |
Owner name: ANSHAN MEISI MEASUREMENT TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ANSHAN MEISI DETECTOR OF DEFECTS CO., LTD. Effective date: 20050422 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20050422 Address after: No. 9 Yongning Street, Anshan Economic Development Zone, Liaoning Applicant after: Meisi Crack Detection Equipment Co Ltd, Anshan Address before: No. 9 Yongning Street, economic opening zone, Anshan, Liaoning Applicant before: Meisi Crack Detection Equipment Co Ltd, Anshan |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |