CN1053957A - Ultrasonic flaw detecting device - Google Patents
Ultrasonic flaw detecting device Download PDFInfo
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- CN1053957A CN1053957A CN 90100589 CN90100589A CN1053957A CN 1053957 A CN1053957 A CN 1053957A CN 90100589 CN90100589 CN 90100589 CN 90100589 A CN90100589 A CN 90100589A CN 1053957 A CN1053957 A CN 1053957A
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Abstract
This supersonic detector comprises that ultrasonic transducer 1 signal receive section 5, electron ray tube 6, direct impulse generator 7, synchronous working part 8, ultrasonic beam position signalling form circuit 9 and totalizer 10, the input end of totalizer 10 is connected with the output terminal with ultrasonic beam position signalling formation circuit 9 of signal receive section 5, and the output terminal of totalizer 10 is connected with the deflection system 11 of electron ray tube 6.
Description
The present invention relates to checkout equipment, be specifically related to ultrasonic flaw detecting device.
The present invention can be applicable to also can be applicable in the various technology in other similar fields such as machine-building, metallurgy, municipal pipeline construction.
Known supersonic detector comprises that ultrasonic transducer, synchronizer, direct impulse generator, receiver, electron ray display and scanning form part.Wherein ultrasonic transducer adopts the phased lattice of charged control and raster scan device (B) type of supplying with the device (A type) of pulse or having brightness to show.
The shortcoming of this instrument is that the angle resoluting ability and the sensitivity of ultrasonic transducer is low, and this is the performance deficiency because of its parts, and because the volume distortion and the phase distortion of multi-part phased system.In addition, known devices can not guarantee that gate has the two-dimentional gating of controllable form, and the demonstration that can not obtain other form.These drawbacks limit the quantity of information that obtains of known devices and result's reliability (
E φ e к т о с к о п и я, No8,1985, Sverdlovsk, C, A, φ а л ь
к e В И И and M, B, Hay М О В work " electron scanning UT (Ultrasonic Testing) instrument у 3
" Pacmp " the 28th～32 page).
Also known a kind of supersonic detector, it comprises synchronous working device, direct impulse generator, the autoscan ultrasonic transducer of series connection, and the latter comprises the movable part that is contained in the shell, the electric drive and the ultrasonic beam position transducer of property dynamic component.
This instrument also comprises the receiving unit by the next signal of radio-frequency amplifier, wave detector and the video amplifier of series connection, and the electric drive power supply of the ray brightness of electron ray display, electron ray display part, movable part, the gate pulse ganerator that is connected with synchronous device in addition, its output terminal is connected with the video amplifier of receiving unit, and scanning generator.And the ultrasonic beam position transducer is to adopt variohm (A, K, Г у р В И Ц and N, H, Е р М О Л О В work " supersonic testing method of weld seam " 1972 that is connected with the gate pulse ganerator circuit, " technology ", Kiev, the 438th～440 page).
This instrument causes its reliability and computing velocity all abundant inadequately owing to adopted the contacted dead reckoning tracer that is determining the strobe pulse action.Have only the ray brightness modulation of electron ray tube in this instrument, can only guarantee like this to come expression information with the form of b mode image.And can only guarantee that the spy who regulates strobe pulse automatically continues the time, this has just limited the reliability and the range of application thereof of this instrument.
Task of the present invention is to produce a kind of like this supersonic detector, this fault indicator is because various forms of flaw indications arrive electron ray tube simultaneously, therefore can represent information with two or more forms, and can form the condition that carries out the transition to another kind of form from a kind of form of information rapidly simultaneously.
The method of finishing this task is the signal receive section that supersonic detector comprised be verified product information with respect to the ultrasonic beam position transducer that is verified ultrasonic transducer that goods can change the ultrasonic beam position automatically, be coupled with ultrasonic transducer, being loaded with of being connected with ultrasonic transducer, the electron ray tube that is coupled with signal receive section, the direct impulse generator that its output terminal is connected with ultrasonic transducer, and the synchronous working part; According to the present invention, this detector device comprises that also the ultrasonic beam position signalling forms circuit, the input end of this circuit is connected with the output terminal of ultrasonic beam position transducer, and totalizer, its input end is connected with the output terminal of signal receive section, another input end is connected with the output terminal that the ultrasonic beam position signalling forms circuit, and the output terminal of totalizer then is connected with the deflection system of electron ray tube.
Because this change of the circuit of this fault indicator, operating personnel can be simultaneously or observe the amplitude image and/or the brightness image of defective successively on electron ray tubes, this reliability ， And that has just improved quantity of information and information simplifies its analytic process, and has shortened the time of handling that receives.
Make this fault indicator possess the flaw indication amplitude conversion circuit and ultrasonic beam position signalling amplitude conversion circuit suits.The input end of last circuit is connected with the output terminal of signal receive section, and its output terminal then is connected with totalizer; Each input end of back one circuit is connected with the output terminal that the ultrasonic beam position signalling forms circuit, and its output terminal then is connected with the input end of totalizer.
Change the relation between the various forms of information by these methods, just can information representation be come out with the form that is convenient to operating personnel.
The ultrasonic beam position signalling forms circuit and can be connected with sync section.
Connection can increase the time constant of this waveshaping circuit by synchronous reset (с ц Н х р о Н и 3 ц р О В а Т ь с δ р о с) And like this, the scanning pattern lines distortion minimum that the result makes on electron ray tube to be described can also improve reliability.
Making this fault indicator possess the automatic conditioning signal formation of amplification coefficient part also suits, this part is connected with the output terminal of ultrasonic beam position transducer and the input end of signal receive section, and the output terminal of ultrasonic beam position signalling formation circuit is connected with signal receive section.
Can make the sensitivity of this fault indicator smooth evenly like this.
For the reliability that raising information shows, the automatic conditioning signal of amplification coefficient forms part and can be connected with sync section.
It is useful making this fault indicator possess second ultrasonic beam position signalling amplitude conversion circuit, and this circuit and ultrasonic beam position signalling form the output terminal Lian Jie ， And of circuit and be connected on second deflection system of electron ray tube.
Object information shows as the scanning pattern that its line progression postpones.
If this fault indicator comprises the flaw indication that is connected with sync section with receiving unit and selects part automatically, it should comprise that also two-dimentional gating district forms device so, there is the border that is conditioned in this district, this input end that forms device is connected with the output terminal that the ultrasonic beam position signalling forms circuit, form the control signal of strobe pulse end at the whole story on each output terminal that forms device, these output terminals select each corresponding input end of part to be connected with flaw indication automatically.
In this fault indicator, according to the profile that is verified object, according to the given shape of operating personnel, flaw indication selects the border, district automatically to change to another scan line from a scan line.The reliability and the efficient of check have so just been improved.
When the ultrasonic beam position transducer is connected with the direct impulse generator or is connected with sync section, the ultrasonic beam position signalling forms circuit can adopt peak detector, the ultrasonic beam position signalling forms the peak detector that circuit can include reset circuit (cxeMac δ poca), and the automatic conditioning signal of amplification coefficient forms the peak detector that part can comprise the tape function converter.
Two dimension gating district forms device can two identical radio frequency channels, each radio frequency channel all comprises two voltage subtracters that couple together by the non-conversion input end, the output terminal of one of them subtracter is connected with the voltage transitions regulator, the output terminal of another voltage subtracter is connected with voltage non-conversion regulator, the voltage transitions regulator of each radio frequency channel and each output terminal voltage non-conversion regulator are connected with the input end of corresponding voltage level selector switch, the conversion input end of each voltage subtracter all is connected with voltage source, and the non-conversion input end that is connected of each voltage subtracter then is connected with the output terminal of ultrasonic beam position signalling formation circuit.
If comprising, the ultrasonic transducer in this flaw detection is used for motor that it is moved with respect to goods, preferably adopt synchronous motor, and be connected with electrical source of power, this electrical source of power comprises frequency divider and the power amplifier of connecting with frequency divider, the input end of this power supply is connected with sync section, this electrical source of power comprises frequency divider and the power amplifier of connecting with frequency divider, and the input end of this power supply is connected with sync section, and output terminal then is connected with synchronous motor by switch.
Therefore, described fault indicator can guarantee to represent defect information with two or more forms, and can form the condition that carries out the transition to another kind of form from a kind of form of information rapidly simultaneously.
Below, will the present invention be described by embodiments of the invention and the following drawings thereof:
Fig. 1 is the structural drawing of supersonic detector of the present invention;
Fig. 2 is same a kind of fault indicator that amplitude conversion circuit is arranged of the present invention;
Fig. 3 is another embodiment of same fault indicator of the present invention;
Fig. 4 is the another kind of connectivity scenario of amplitude conversion circuit of the present invention;
Fig. 5 is the same a kind of fault indicator that the automatic conditioning signal of amplification coefficient forms part that has of the present invention;
Fig. 6 is the another embodiment of fault indicator of the present invention;
Fig. 7 is another embodiment of fault indicator of the present invention;
Fig. 8 is have another kind of ultrasonic beam position signalling amplitude conversion circuit of the present invention with a kind of fault indicator;
Fig. 9 has two-dimentional gating district to form the of the present invention with a kind of fault indicator of device;
Figure 10 is the embodiment that two-dimentional gating of the present invention district forms device;
Figure 11 is that ultrasonic beam position signalling of the present invention forms circuit;
Figure 12 is that the automatic conditioning signal of amplification coefficient of the present invention forms part;
Figure 13 is the electric drive that ultrasound wave of the present invention changes device;
Figure 14 a, b, c, d, e, f, g, h are the time diagrams that characterizes fault indicator work of the present invention;
Figure 15 a, b, c, d, e, f, g, h are different shapes that defective is described on the electron ray tube fluorescent screen.
This supersonic detector comprises ultrasonic transducer 1(Fig. 1), this converter 1 contains movable part 2, ultrasonic beam position transducer 3 and is used for motor 4 that movable part 2 is moved with respect to goods, the UT (Ultrasonic Testing) instrument also comprises the signal receive section 5 that is verified product information that is loaded with that is connected with converter 1, and electron ray tube 6.The output terminal of direct impulse generator 7 is connected on the converter 1.The synchronous working part 8 that fault indicator is connected with generator 7 in addition.
Fault indicator of the present invention comprises that the ultrasonic beam position signalling forms circuit 9, and its input end is connected with the output terminal of sensor 3, and totalizer 10, and its input end is connected with the output terminal of part 5, and second input end is connected with the output terminal of circuit 9.The output terminal of totalizer 10 is connected on the deflection system 11 of pipe 6, and another deflection system 12 of pipe 6 is connected with the output terminal of sweep test 13, and the latter's input end is connected with sync section 8.The output terminal of signal receive section 5 (Fig. 2) is connected with flaw indication amplitude conversion circuit 14, and the output terminal of circuit 14 is connected with another input end of totalizer 10.
The output terminal of circuit 9 is connected (Fig. 3) with ultrasonic beam position signalling amplitude conversion circuit 15, and the output terminal of circuit 15 is connected with second input end of totalizer 10.
For synchronous reset, the input end (Fig. 4) that the ultrasonic beam position signalling forms circuit 9 is connected with the output terminal of sync section 8.
The output terminal of converter 1 also is connected (Fig. 5) with the input end of the automatic conditioning signal formation of amplification system part 16, and the output terminal of part 16 then is connected with the input end of the signal receive section 5 that is loaded with defect information.The output terminal of circuit 9 (Fig. 6) is connected with another input end of signal receive section 5.
The fault indicator of Zhi Zaoing can make its sensitivity evenly smooth like this.
In order to improve the reliability of information, the output terminal (Fig. 7) of sync section 8 is connected with the input end of part 16.
In addition, this fault indicator also comprises a ultrasonic beam position signalling amplitude conversion circuit 17(Fig. 8), it is connected with the output terminal of circuit 9.An input end of totalizer 18 is connected with the output terminal of circuit 17, and its second input end is connected with the output terminal of sweep test 13.The output terminal of totalizer 18 is connected with the deflection system 12 of electron ray tube 6.
Figure 9 shows that the another embodiment of this fault indicator, it comprises that flaw indication selects part 19 automatically, part 19 is connected with the output terminal of receiving unit 5 and the output terminal of sync section 8, and it comprises that also two-dimentional gating district forms device 20, and there is controlled border in this district.The input end that forms device 20 is connected with the output terminal that the ultrasonic beam position signalling forms circuit 9.
Forming device 20 has two output terminals, forms the control signal corresponding to strobe pulse two ends at the whole story on these two output terminals.These two output terminals and flaw indication select part 19 corresponding input ends to be coupled automatically.
But, if can carry out manual definite value to border, two dimension district in this fault indicator will be easily, fault indicator has border definite value circuit 21 and 22 for this reason, they are connected with 24 separately input ends with totalizer 23 respectively, and 23 are connected with 24 separately another input end output terminals corresponding with forming device 20.Totalizer 23 and 24 output terminal are connected to flaw indication and select automatically on the input end of part 19.
Two dimension gating district forms device 20(Figure 10) comprise that two identical districts form radio frequency channel 25 and 26, all are connected with voltage source 27.Each radio frequency channel 25,26 all comprises two subtracters 28,29 and 30,31, and the non-conversion input end of each subtracter ， And that links together is connected on the output terminal that the ultrasonic beam position signalling forms circuit 9.The conversion input end of each subtracter 28～31 all connects with the output terminal of corresponding voltage regulator 32,33,34,35, and the input end of each voltage regulator ， And that links together is connected on the voltage source 27.The output terminal of each subtracter 28～31 is connected with the input end of voltage regulator 36,37,38,39 respectively.
Each radio frequency channel 25,26 that forms device 20 has voltage level selector switch 40,41, and these two selector switchs are connected with 38,39 output terminal with corresponding voltage regulator 36,37 respectively.The output terminal of selector switch 40,41 promptly is the output terminal that forms device 20.
Voltage regulator the 36, the 38th, conversion, and regulator the 37, the 39th, non-conversion.
The ultrasonic beam position signalling forms circuit 9(Fig. 1) be the peak detector that adopts the peak detector of any known type or reset circuit is arranged, as shown in figure 11.Peak detector comprises diode 42 and capacitor 43, and they all are connected with reset circuit, is connected on the transistor 44.
For the ultrasonic beam position can be changed automatically with respect to goods, ultrasonic transducer 1 comprises synchronous motor 47(Figure 13), 47 are connected with power supply 48.And power supply 48 comprises the frequency divider 49 and the power amplifier 50 of series connection.The input end of frequency divider 49 is connected on the sync section 8, and the output terminal of power amplifier 50 is connected with motor 47 by switch 51.
In order to tell the interested district of operating personnel on the video screen of pipe 6, the output terminal of part 19 (Fig. 9) is connected with the control input end 53 of electron ray tube 6 by switch.
The working method of supersonic detector is as follows:
From sync section 8(Fig. 1～9) synchronizing pulse (under Figure 14 effect a), direct impulse generator 7 forms pulse and arrives ultrasonic transducer 1(Figure 14 b), converter 1 guarantees that emission ultrasonic vibration ， And imports (not shown) in the goods of checking with it.
The ultrasonic vibration that reflects from product defect converts to by converter 1 and is loaded with the electric signal that is verified defect information the goods, and the input end of these electric signal arriving signal receiving units 5 amplifies these electric signal in part 5 and handles.Output terminal in part 5 forms flaw indication (Figure 14 c), and flaw indication arrives the deflection system 11 of electron ray tube 6 through totalizer 10.
(Figure 14 a) arrives sweep test 13 ， And and forms saw-tooth voltage (Figure 14 d) synchronizing pulse simultaneously, and this voltage arrives another deflection system 12 of pipe 6, guarantees to depict line scanning on the video screen of electron ray tube.
Converter 1 guarantees that ultrasonic beam can change automatically periodically with respect to the position that is verified goods.3 pairs of electric signal (Figure 14 e) corresponding with the current position of ultrasonic beam of ultrasonic beam position transducer are handled, and this electric signal arrives the input end that the ultrasonic beam position signalling forms circuit 9.Signal (Figure 14 f) (its peak value be expert at scanning process in constant) arrives the input end of totalizer 10 from the output terminal of ultrasonic beam location circuit 9, (Figure 14 g) and flaw indication (Figure 14 c) addition in totalizer.The result is on the video screen of electron ray tube 6, and each line position and ultrasonic beam position synchronous change, and therefore forms the scanning pattern (Figure 15) of the flaw indication that superposeing above it.
By means of circuit 14, can change the amplitude that is apparent in the flaw indication on pipe 6 video screens corresponding to fault indicator shown in Figure 2.
In order to change the size of the scanning pattern on pipe 6 video screens, then by means of amplitude conversion circuit 15(Fig. 3), regulate the amplitude that arrives the ultrasonic beam position signalling (Figure 14 f) on the pipe 6.
In order to make circuit 9(Fig. 4) synchronous working, (Figure 14 a) arrives circuit 9 from sync section 8 to synchronizing pulse.
In order to make signal receive section 5(Fig. 5) amplification coefficient can change by of the variation of certain rule with the ultrasonic beam position, signal arrives the input end of the part 16 of control signal receiving units 5 from position transducer 3.
Similarly, the automatic conditioning signal of amplification coefficient arrives part 5(Fig. 6 from the output terminal of circuit 9).
Synchronizing signal arrives the automatic conditioning signal of amplification coefficient equally and forms part 16(Fig. 7), part 16 such control sections 5 are even its amplification coefficient changes according to certain rules in time.
Fault indicator shown in Figure 8 is except that above-mentioned, and its working method is as follows:
Ultrasonic beam position signalling (Figure 14 f) arrives totalizers 18 through oversampling circuit 17, in saw-tooth voltage (Figure 14 h) addition of this and line scanning.The output signal of totalizer 10 (Figure 14 g) arrives the deflection system 11 of electron ray tube 6.
Corresponding to circuit shown in Figure 9, flaw indication in this fault indicator (Figure 14 c) arrives the input end that flaw indication is selected part 19 automatically, and the signal that 19 handles of part arrived in the time of strobe pulse effect branches away.Be used for control signal device (not shown) by the signal that branched away, this telltale reports to operating personnel and have signal in the gating district.The whole story of strobe pulse, (Figure 14 delay a) determined the border in the gating district of time to time change, and above-mentioned delay is given by means of arriving control signal on the part 19 corresponding input ends with respect to synchronizing pulse at two ends.
Ultrasonic beam position signalling (Figure 14 f) arrives the input end that the two dimension district forms device 20, the signal (these signals are with respect to the ultrasonic beam position signalling, and the rule of determining by means of part 19 according to operating personnel changes) that forms 20 pairs of control of device strobe pulse end at the whole story is handled.Strobe pulse arrives pipe 6, reveals the gating district so that show at its video screen.
If by means of circuit 14, make wave beam big along the signal amplitude of perpendicular line deflection in the video screen back, scanning pattern line 55 appears in the result in the place of defectiveness signal (Figure 14 c) fracture 54(Figure 15 a), this is because wave beam surpasses line scan speed up to an order of magnitude along the movement velocity of perpendicular line.
This situation that shows constitutes B-scan image, and (Figure 15 a).The size of each point, each point relative size, the position of defective in checked object and the orientation each other of defective on the video screen in position on the video screen and orientation correspondence each other.
If think the distribution of observation signal amplitude, should signal amplitude be narrowed down to the size that is no more than the video screen size by circuit 14.Because the not complete obiteration as yet of Type B modulation at this moment, image is called A+B(Figure 15 b).When signal amplitude is reduced to when being equivalent to line space from size, intensification modulation has disappeared, and the modulation of remaining line only shows as local offset 56(Figure 15 c vertically).Such image is called AB.
In the time must at length observing flaw indication distribution of amplitudes (Figure 15 d), all lines are offset mutually along the horizontal line direction, at this moment pulse crest part 57 just can not overlap each other.This will realize by means of circuit 17.And the deflection system 12 of the pipe of the arrival of the signal shown in Figure 14 h this moment 6.
Under the situation of A+B type (Figure 15 d) that forms subsidiary line displacement and AB type (Figure 15 e) image, assurance can be carried out labor to the signal distributions from defective by this method.
Three states that are formed with the A type image of single line display message, they are achieved in that when the output terminal at circuit 15 is adjusted to zero amplitude, use autoscan ultrasonic transducer 1 to be adjusted to zero amplitude (line along continuous straight runs non-displacement) at the output terminal of circuit 17; Equally, but be not equal to zero (when line has displacement (Figure 15 f) along the horizontal line direction at signal amplitude on the output terminal of circuit 17; With interrupt autoscan ultrasonic transducer 1 or the non-arbitrarily scanning ultrasonic transducer of use.
There is the working condition of the fault indicator in two-dimentional gating district in b mode image formation state, can observe.Signal amplitude on the output terminal of circuit 17 equals zero.
Two dimension gating district forms device 20 and forms the quadrilateral gating district that is surrounded by four lines that are similar to straight line.Utilize regulator 32,33,34 and 35 that these line parallels are moved, and utilize regulator 36,37,38 and 39 to make their rotations.One of image in the cards is to depict two-dimentional gating district on video screen, shown in Figure 15 g on the video screen of pipe 6.Image shown in Figure 15 h is obtained by previous image when connecting switch 52.And on video screen except that the strobe pulse district, all lines all are eliminated, this just can remove all remaining things from video screen.Follow in formation under the situation of A+B type, AB type and A type image, eliminate strobe pulse all line particular importances in addition, because the superimposed pulses that at this moment is in beyond the gating district is disturbed and will be removed along the horizontal line displacement of the lines.
Therefore, above-mentioned fault indicator can obtain image simultaneously on the video screen of electron ray tube maybe can improve the picture information amount, the time of reception that the result has shortened its analysis time and determined by operating personnel.In addition, can improve checkability and reliability thereof with the ultrasonic beam autoscan, this is owing to launch the event of ultrasound wave from various angles to detected object.
In this fault indicator, replenish and insert the flaw indication amplitude conversion circuit, change the relation between flaw indication and the ultrasonic beam position signalling, can be on the electron ray tube fluorescent screen constitute image, thereby on the image analysis time, obtain additional benefit with the most convenient operating personnel's form.
The ultrasonic beam position signalling forms the coupling between circuit and the sync section, can make the distortion of scintigram line-transect on the electron ray tube fluorescent screen reduce to minimum, thereby increase the reliability that detects.
In order to guarantee that sensitivity is identical in whole ultrasonic beam sweep limits, in this fault indicator, to introduce the automatic conditioning signal of amplification coefficient and formed part, this just provides same condition to display defect in whole sweep limit.This is avoided duplicate test or check deficiency for any part in sweep limit all is necessary.
The existence of second ultrasonic beam position signalling amplitude conversion circuit just may be shown ultrasonic beam when revealing autoscan at the electron ray tube fluorescent screen and is being verified traveled distance in the goods.
Adopt flaw indication to select part automatically, can make flaw indication select the border, district to change automatically to another scan line from a scan line.This just provides the given possibility of selecting to distinguish shape from the signal of defective automatically to operating personnel.This possibility can further shorten the image analysis time, thereby owing to operating personnel's notice concentrates in the district that is selected, and do not need whole image is all analyzed and spended time, therefore improved detection efficiency and reliability thereof.
Claims (26)
1, a kind of supersonic detector, comprise and to change ultrasonic beam automatically with respect to the ultrasonic transducer that is verified product location (1), the ultrasonic beam position transducer (3) that is coupled with ultrasonic transducer (1), what be connected with ultrasonic transducer (1) is loaded with the signal receive section (5) that is verified product information, the electron ray tube (6) that is coupled with signal receive section (5), direct impulse generator (7) that its output terminal is connected with ultrasonic transducer (1) and synchronous working part (8), it is characterized in that: it comprises that also the ultrasonic beam position signalling that its input end is connected with the output terminal of ultrasonic beam position transducer (3) forms circuit (9), and totalizer (10), its input end is connected with the output terminal of signal receive section (5), another input end is connected with the output terminal that ultrasound wave frequency position signalling forms circuit (9), and the output terminal of totalizer then is connected with the deflection system (11) of electron ray tube (6).
2, fault indicator according to claim 1 is characterized in that: it comprises flaw indication amplitude conversion circuit (14), and its input end is connected on the output terminal of signal receive section (5), and its output terminal then is connected on the totalizer (10).
3, fault indicator according to claim 1 and 2, it is characterized in that: it comprises ultrasonic beam position signalling amplitude conversion circuit (15), its each input end is connected with the output terminal that the ultrasonic beam position signalling forms circuit (9), and its output terminal then is connected with the input end of totalizer (10).
4, fault indicator according to claim 1 and 2 is characterized in that: the ultrasonic beam position signalling forms circuit (9) and is connected with sync section (8).
5, fault indicator according to claim 1 and 2 is characterized in that: it comprises that the automatic conditioning signal of amplification coefficient forms part (16), and this part is connected with the output terminal of ultrasonic beam position transducer (3) and the input end of signal receive section (5).
6, fault indicator according to claim 3, it is characterized in that: it comprises ultrasonic beam position signalling amplitude circuit (15), its each input end is connected with the output terminal that the ultrasonic beam position signalling forms circuit (9), and its output terminal then is connected with the input end of totalizer (10).
7, fault indicator according to claim 3 is characterized in that: the ultrasonic beam position signalling forms circuit (9) and is connected with sync section (8).
8, fault indicator according to claim 3 is characterized in that: it comprises that the automatic conditioning signal of amplification coefficient forms part (16), and this part is connected with the output terminal of ultrasonic beam position transducer (3) and the input end of signal receive section (5).
9, fault indicator according to claim 1 and 2 is characterized in that: the output terminal that the ultrasonic beam position signalling forms circuit (9) is connected with signal receive section (5).
10, fault indicator according to claim 4 is characterized in that: the output terminal that the ultrasonic beam position signalling forms circuit (9) is connected with signal receive section (5).
11, fault indicator according to claim 5 is characterized in that: the automatic conditioning signal of amplification coefficient forms part (16) and is connected with sync section (8).
12, fault indicator according to claim 6 is characterized in that: the automatic conditioning signal of amplification coefficient forms part (16) and is connected with sync section (8).
13, fault indicator according to claim 1 and 2, it is characterized in that: it comprises second ultrasonic beam position signalling amplitude conversion circuit (17), this circuit and ultrasonic beam position signalling form the output terminal Lian Jie ， And of circuit (9) and are connected on second deflection system (12) of electron ray tube (6).
14, fault indicator according to claim 8 is characterized in that: it comprises the second ultrasonic beam position signalling amplitude conversion circuit (17), this circuit is connected with the output terminal that the ultrasonic beam position signalling forms circuit (9), and is connected on second deflection system (12) of electron ray tube (6).
15, fault indicator according to claim 1 and 2, it is characterized in that: it comprise flaw indication select automatically the part (19), this part is connected with sync section (8) with signal receive section (5), also include the two-dimentional gating district that adjusts the border and form device (20), its input end is connected with the output terminal that the ultrasonic beam position signalling forms circuit (9), form the control signal of strobe pulse end at the whole story on each output terminal that forms device (20), these output terminals select each corresponding input end of part (19) to connect with signal automatically.
16, fault indicator according to claim 14, it is characterized in that: it comprise flaw indication select automatically the part (19), this part is connected with sync section (8) with signal receive section (5), also include the two-dimentional gating district that adjusts the border and form device (20), its input end is connected with the output terminal that the ultrasonic beam position signalling forms circuit (9), form the control signal of strobe pulse end at the whole story on each output terminal that forms device (20), these output terminals select each corresponding input end of part (19) to connect with signal automatically.
17, fault indicator according to claim 1 and 2, it is characterized in that: ultrasonic beam position transducer (3) is connected with direct impulse generator (7), perhaps be connected, and the ultrasonic beam position signalling forms circuit (9) employing peak detector with sync section (8).
18, fault indicator according to claim 5 is characterized in that: ultrasonic beam position transducer (3) is connected with direct impulse generator (7) or with sync section (8), and the ultrasonic beam position signalling forms circuit (9) employing peak detector.
19, fault indicator according to claim 16 is characterized in that: ultrasonic beam position transducer (3) is connected with direct impulse generator (7) or with sync section (8), and the ultrasonic beam position signalling forms circuit (9) employing peak detector.
20, fault indicator according to claim 4, it is characterized in that: ultrasonic beam position transducer (3) is connected with direct impulse generator (7) or with sync section (8), and the ultrasonic beam position signalling forms the peak detector (42,43) that circuit (9) comprises band reset circuit (44).
21, fault indicator according to claim 7, it is characterized in that: ultrasonic beam position transducer (3) is connected with direct impulse generator (7) or with sync section (8), and the ultrasonic beam position signalling forms the peak detector (42,43) that circuit (9) comprises band reset circuit (44).
22, fault indicator according to claim 18 is characterized in that: the automatic conditioning signal of amplification coefficient forms the peak detector (45) that part (16) comprises tape function converter (46).
23, according to the described fault indicator of claim 20, it is characterized in that: the automatic conditioning signal of amplification coefficient forms the peak detector (45) that part (16) comprises tape function generator (46).
24, fault indicator according to claim 15, it is characterized in that: two-dimentional gating district forms device (20) two identical radio frequency channels, each radio frequency channel all comprises two voltage subtracters (28 that couple together by the non-conversion input end, 29 or 30,31), the output terminal of one of them subtracter (28 or 30) is connected with voltage transitions regulator (36 or 38), the output terminal of another subtracter (29 or 31) is connected with voltage non-conversion regulator (37 or 39), the voltage transitions regulator of each radio frequency channel (36 or 38) and each output terminal voltage non-conversion regulator (37 or 39) are connected with the input end of corresponding voltage level selector switch (40 or 41), the conversion input end of each voltage subtracter (28～31) is connected with voltage source (27), and the non-conversion input end that is connected of each voltage subtracter (28～31) is connected on the output terminal of ultrasonic beam position signalling formation circuit (9).
25, fault indicator according to claim 16, it is characterized in that: two-dimentional gating district forms device (20) two identical radio frequency channels, each radio frequency channel all comprises two voltage subtracters (28 that couple together by the non-conversion input end, 29 or 30,31), the output terminal of one of them subtracter (28 or 30) is connected with voltage transitions regulator (36 or 38), the output terminal of another subtracter (29 or 31) is connected with voltage non-conversion regulator (37 or 39), the voltage transitions regulator of each radio frequency channel (36 or 38) and each output terminal voltage non-conversion regulator (37 or 39) are connected with the input end of corresponding voltage level selector switch (40 or 41), the conversion input end of each voltage subtracter (28～31) is connected with voltage source (27), and the non-conversion input end that is connected of each voltage subtracter (28～31) is connected on the output terminal of ultrasonic beam position signalling formation circuit (9).
26, fault indicator according to claim 1 and 2, it is characterized in that: ultrasonic transducer (1) comprises and is used for making its synchronous motor that moves with respect to goods (47), it is connected with power supply (48), power supply (48) comprises the frequency divider (49) and the power amplifier (50) of series connection, the input end of power supply (48) is connected with sync section (8), and output terminal then passes through switch (51) synchronous motor (47) and connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90100589 CN1053957A (en) | 1990-02-06 | 1990-02-06 | Ultrasonic flaw detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90100589 CN1053957A (en) | 1990-02-06 | 1990-02-06 | Ultrasonic flaw detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1053957A true CN1053957A (en) | 1991-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90100589 Pending CN1053957A (en) | 1990-02-06 | 1990-02-06 | Ultrasonic flaw detecting device |
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| CN (1) | CN1053957A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109688371A (en) * | 2018-11-09 | 2019-04-26 | 天津师范大学 | A kind of control method of the sound source processing system based on acoustic sensor array and image recognition |
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1990
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109688371A (en) * | 2018-11-09 | 2019-04-26 | 天津师范大学 | A kind of control method of the sound source processing system based on acoustic sensor array and image recognition |
| CN109688371B (en) * | 2018-11-09 | 2021-03-05 | 天津师范大学 | Acoustic source processing system control method based on acoustic sensor array and image recognition |
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