CN103245731A - Device and method for sensing and compensating performance of ultrasonic probe - Google Patents
Device and method for sensing and compensating performance of ultrasonic probe Download PDFInfo
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- CN103245731A CN103245731A CN2013101511071A CN201310151107A CN103245731A CN 103245731 A CN103245731 A CN 103245731A CN 2013101511071 A CN2013101511071 A CN 2013101511071A CN 201310151107 A CN201310151107 A CN 201310151107A CN 103245731 A CN103245731 A CN 103245731A
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Abstract
The invention provides a device and a method for sensing and compensating the performance of an ultrasonic probe. The device comprises an ultrasonic receiver, an analog-digital converter, a time difference compensating circuit, a comparing circuit and a sensing circuit, wherein the ultrasonic receiver is used for receiving echo signals of ultrasonic waves sent by the ultrasonic probe to obtain one group of scanning signals; the time difference compensating circuit is used for compensating the group of scanning signals according to time difference when the ultrasonic waves are sent; the comparing circuit is used for comparing that whether ultrasonic scanning information in different positions on a scanning information accords with a delivery performance test value or not; and the sensing circuit is used for judging that whether the degradation degree of each ultrasonic array element in the probe is within a compensable range or not and entering in a compensating mode if the degradation degree of each ultrasonic array element is in the compensable range so as to compensate the damaged scanning signal. According to the device and method for sensing and compensating the performance of the ultrasonic probe, in the case of no need of replacing the probe, the ultrasonic probe can be continuously used so that the cost is saved.
Description
Technical field
The invention relates to a kind of ultrasound examination, and particularly relevant for the detecting of a kind of ultrasonic probe performance and compensation system and method.
Background technology
In the middle of non-destructive detected, normal using ultrasound ripple scanner was launched ultrasound wave, and received the echo signal that this ultrasound wave of reflection produces, to detect.Have accurate ultrasound wave array element in the ultrasonic probe, in order to the intensity of detecting scanning signal, but the performance of ultrasound wave array element can increase loss gradually, thereby must adjust parameter to meet the requirement of ultrasound examination because of behaviour in service, time.Yet, ultrasonic scanner has only signal strength and the gain of adjusting ultrasonic transmitter at present, the problem of distortion to remedy the echo signal decline, but can't detect the degree of decline, and can't compensate at the performance of individual other ultrasound wave array element, thereby can't make the signal of distortion be returned to normal value, remain further to be improved.
Summary of the invention
The present invention has the function of detecting voluntarily and compensating relevant for the detecting of a kind of ultrasonic probe performance and compensation system and method, so that the signal value is returned to normally.
According to an aspect of the present invention, propose a kind of ultrasonic probe performance detecting and compensation system, comprise ultrasonic receiver, analogy-digital converter, mistiming compensating circuit, comparison circuit and circuit for detecting.Ultrasonic receiver is in order to receive the hyperacoustic echo signal that is sent by ultrasonic probe, and to obtain one group of scanning signal, ultrasonic probe comprises a plurality of ultrasound wave array elements, corresponding these a little ultrasound wave array elements of this group scanning signal.Analogy-digital converter scans signal in order to receive this group, and converts the ultrasonic scanning information of numerical digit form to.Mistiming when the mistiming compensating circuit sends according to ultrasound wave compensates this group scanning signal, to obtain the ultrasonic scanning information of diverse location on the sweep trace.Whether comparison circuit tie-time difference compensating circuit meets the performance test value of dispatching from the factory in order to the ultrasonic scanning information of comparing diverse location on the sweep trace.Circuit for detecting connects the comparison circuit, in order to the recession level of judging each ultrasound wave array element in the probe whether in compensable scope, if then enter compensation model, to compensate impaired scanning signal wherein.
In a preferred embodiment, this circuit for detecting comprises the average compensating unit, in order to int at least two the scanning signals in the adjacent both sides that receive this impaired scanning signal, and with the mean value of these at least two the int scanning signals signal value as this impaired scanning signal.
In a preferred embodiment, wherein the recession level of this impaired scanning signal is lower than 70% when following of the test performance that dispatches from the factory, and this circuit for detecting replaces the signal value of this impaired scanning signal at least with the mean value of these two int scanning signals.
In a preferred embodiment, this circuit for detecting comprises the linear regression compensating unit, in order in the regression function that calculates this group scanning signal corresponding to the regressand value of this impaired scanning signal, and with the signal value of this regressand value as this impaired scanning signal.
In a preferred embodiment, wherein the recession level of this impaired scanning signal is lower than 70% when following of the test performance that dispatches from the factory, and this circuit for detecting replaces the signal value of this impaired scanning signal with the regressand value of this impaired scanning signal.
In a preferred embodiment, wherein this circuit for detecting comprises gain compensation unit, in order to amplify the yield value of this impaired scanning signal, to compensate the signal value of this impaired scanning signal.
In a preferred embodiment, wherein the recession level of this impaired scanning signal is higher than 70% when above of the performance test of dispatching from the factory, and this circuit for detecting is with the mode of the yield value that amplifies this impaired scanning signal, the signal value of amplifying this impaired scanning signal.
In a preferred embodiment, also comprise user's interface, connect this circuit for detecting, wherein when the recession level of each ultrasound wave array element in this ultrasonic probe is in this compensable scope, the damaged condition that shows these a plurality of ultrasound wave array elements with this user's interface, and when the recession level of each ultrasound wave array element in this ultrasonic probe surpasses this compensable scope, can't use or lose efficacy with these these a plurality of ultrasound wave array elements of user's interface demonstration.
According to an aspect of the present invention, propose a kind of ultrasonic probe performance detecting and compensation method, comprise the following steps.Hyperacoustic echo signal that reception is sent by ultrasonic probe, to obtain one group of scanning signal, ultrasonic probe comprises a plurality of ultrasound wave array elements, corresponding these a little ultrasound wave array elements of this group scanning signal.Mistiming when sending according to ultrasound wave compensates this group scanning signal, to obtain the ultrasonic scanning information of diverse location on the sweep trace.Whether the ultrasonic scanning information of diverse location meets the performance test value of dispatching from the factory on the comparison sweep trace.Judge that the recession level of each ultrasound wave array element in the probe is whether in compensable scope, if then enter compensation model, to compensate impaired scanning signal wherein.
In a preferred embodiment, this enters this compensation model and comprises int at least two the scanning signals in the adjacent both sides that receive this impaired scanning signal, and with the mean value of these at least two the int scanning signals signal value as this impaired scanning signal.
In a preferred embodiment, the recession level of the scanning signal that this is impaired is lower than 70% when following of the test performance that dispatches from the factory, and replaces the signal value of this impaired scanning signal at least with the mean value of these two int scanning signals.
In a preferred embodiment, this enters this compensation model and comprises the regressand value that calculates in the regression function that this group scans signal corresponding to this impaired scanning signal, and with the signal value of this regressand value as this impaired scanning signal.
In a preferred embodiment, the recession level of the scanning signal that this is impaired is lower than 70% when following of the test performance that dispatches from the factory, and replaces the signal value of this impaired scanning signal with the regressand value of this impaired scanning signal.
In a preferred embodiment, this enters this compensation model and comprises the yield value that amplifies this impaired scanning signal, to compensate the intensity of this impaired scanning signal.
In a preferred embodiment, the recession level of the scanning signal that this is impaired is higher than 70% when above of the performance test of dispatching from the factory, and this circuit for detecting is with the mode of the yield value that amplifies this impaired scanning signal, the signal value of amplifying this impaired scanning signal.
In a preferred embodiment, when the recession level of each ultrasound wave array element in this ultrasonic probe is in this compensable scope, also comprise the damage scope that shows these a plurality of ultrasound wave array elements with user's interface, and when the recession level of each ultrasound wave array element in this ultrasonic probe surpasses this compensable scope, also comprise with these these a plurality of ultrasound wave array elements of user's interface demonstration and can't use or lose efficacy.
Ultrasonic probe performance detecting in the embodiment of the invention and compensation system and method, can detect the scanning signal that each ultrasound wave array element receives and whether fail, but and the compensating signature value, therefore need not change under the situation of ultrasonic probe, still can continue to use ultrasonic probe, to save cost.
For there is better understanding above-mentioned and other aspect of the present invention, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Description of drawings
Fig. 1 is the synoptic diagram of the ultrasonic probe Performance Test System of one embodiment of the invention;
Fig. 2-Fig. 4 is the synoptic diagram of the signal compensating unit of different embodiments;
Fig. 5 is presented at synoptic diagram on user's interface for detecting result in one embodiment of the invention.
Embodiment
The ultrasonic probe performance of present embodiment is detected and compensation system, can detect the performance of each ultrasound wave array element voluntarily, if the recession level of each ultrasound wave array element in compensable scope, then carries out software compensation or compensates with the programmable logic array circuit.For example: when detecting the scanning signal decline that ultrasound wave array element receives, this ultrasound wave array element is done gain compensation, with the signal value of corresponding impaired scanning signal on the magnified sweep line; Or when detecting the scanning signal decline that ultrasound wave array element receives, add up the signal strength of all ultrasound wave array elements, try to achieve the regressand value of corresponding impaired scanning signal by regression curve, with the signal value as this impaired scanning signal.Or, when detecting the scanning signal decline that ultrasound wave array element receives, calculate int at least two the scanning signals in adjacent both sides, and with the mean value of at least two the int scanning signals signal value as this impaired scanning signal.
Below be elaborated for proposing embodiment, embodiment in order to as the example explanation, is not the scope in order to limit desire protection of the present invention only.
Fig. 1 is depicted as the synoptic diagram of the ultrasonic probe Performance Test System 100 of one embodiment of the invention.In Fig. 1, ultrasonic probe 110 comprises a plurality of ultrasound wave array elements 111, each ultrasound wave array element 111 is a transducer, converts the ultrasound wave of machinery concussion in order to the pulse voltage signal with the output of high-frequency impulse generator, detects in the thing (not shown) and be conveyed into.Then, the echo signal that will detect this ultrasound wave generation of thing internal reflection again converts the pulse voltage signal to, and exports ultrasonic receiver 121 to, so that ultrasonic receiver 121 obtains one group of scanning signal Vscan.
Present embodiment can carry out performance test to any type of ultrasonic probe 110, for example the ultrasonic probe of the ultrasonic probe of the ultrasonic probe of linear array, phased array or other kenels.In case find the echo signal that each ultrasound wave array element 111 receives, obviously during decline, then carry out performance compensation, to reply its due numerical value with respect to the test value 127 of the performance test of dispatching from the factory.The flow process of performance test below makes brief of the introduction:
At first, in the container of test usefulness, fill water or other media, ultrasonic probe 110 is fixed on the top of container (not shown), and make ultrasonic probe 110 in the face of being positioned at the reflecting plate 112 of container bottom.Start testing software, and select model and the specification of the ultrasonic probe 110 of setup test, with performance parameter and the test value 127 that reads factory setting.Carry out performance test, obtain test report, to analyze the performance of ultrasonic probe 110, for example parameters such as the width of pulse signal and centre frequency.Then, whether comparison ultrasonic probe 110 resulting pulse signals meet the test value 127 of factory setting, if represent that then ultrasonic probe 110 resulting signal values are in permissible range, if do not meet the test value 127 of factory setting, then need the signal value is compensated.
Please refer to Fig. 1, the detecting of ultrasonic probe performance and compensation system 120 comprise ultrasonic receiver 121, analogy-digital converter 122, mistiming compensating circuit 123, comparison circuit 124 and circuit for detecting 125.
Analogy-digital converter 122 scans signal Vscan in order to receive this group, and converts the ultrasonic scanning information of numerical digit form to, to learn corresponding each ultrasound wave array element 111 resulting signal values on the ultrasonic probe 110.
Mistiming compensating circuit 123 is in order to receive resulting ultrasonic scanning information of same time, but because each ultrasound wave array element 111 is to send ultrasound wave in regular turn in different time points, mistiming when so mistiming compensating circuit 123 must send according to ultrasound wave, compensate resulting scanning signal Vscan of same time, just can obtain the ultrasonic scanning information of diverse location on the sweep trace.
In one embodiment, mistiming compensating circuit 123 can comprise interpolator and time parallelism device, utilizes the calculation of numerical value interpolation and time parallelism, obtains the signal value with respect to each scanning signal Vscan on the sweep trace.
Whether comparison 124 tie-time of circuit difference compensating circuit 123 meets the performance test value 127 of dispatching from the factory in order to the ultrasonic scanning information of comparing diverse location on the sweep trace.For example: parameters such as the width of comparison scanning signal Vscan and centre frequency, if meet the standard value of factory setting, expression ultrasonic probe 110 resulting signal values if do not meet the standard value of factory setting, then need the signal value is compensated in permissible range.
Circuit for detecting 125 connects comparison circuit 124, in order to the recession level of judging each ultrasound wave array element 111 in the ultrasonic probe 110 whether in compensable scope, if then enter compensation model, to compensate impaired scanning signal Vscan wherein.In addition, circuit for detecting 125 more can connect user's interface 126, to show the result of detecting.
Above-mentioned comparison circuit 124 is for example realized with field programmable logic array (FPLA) (FPGA) circuit with circuit for detecting 125, but not as limit, present embodiment also can use software to simulate above-mentioned comparison circuit 124 and circuit for detecting 125, utilizes the mode of software compensation that impaired scanning signal Vscan is compensated.
Please refer to Fig. 2～Fig. 4, below introduce the embodiment of several signal compensating units.In Fig. 2, circuit for detecting 125 comprises average compensating unit 131, in order to the adjacent both sides that receive impaired scanning signal Vscan-1 int at least two scannings signal Vscan-2 and Vscan-3, and with the mean value of at least two int scanning signal Vscan-2 and the Vscan-3 signal value as impaired scanning signal Vscan-1.
For instance, in three adjacent scanning signals a damage is arranged, scan the mean value of signals as the signal value of impaired scanning signal with int two of adjacent both sides.If have two or three to damage in five adjacent scanning signals, scan the mean value of signals as the signal value of impaired scanning signal with int two or three of adjacent both sides.The rest may be inferred, as long as in compensable scope, utilizes the mode of average compensation that the signal value is returned to normally.
In Fig. 3, circuit for detecting 125 comprises linear regression compensating unit 132, in order in the regression functions that calculate all scanning signal Vscan corresponding to the regressand value of impaired scanning signal Vscan-1, and with the signal value of this regressand value as impaired scanning signal Vscan-1.Therefore, utilize the mode of linear regression compensation that the signal value is returned to normally.
In one embodiment, when the recession level of impaired scanning signal Vscan-1 is lower than 70% when following of the test performance that dispatches from the factory, preferable mode with average compensation or recurrence compensation replaces the signal value of impaired scanning signal Vscan-1, and the compensation effect that so obtains obviously promotes.
In another embodiment, when the recession level of impaired scanning signal Vscan-1 not obvious, for example be higher than 70% when above of the test performance that dispatches from the factory, preferable mode with gain compensation is amplified the signal value of impaired scanning signal Vscan-1, and the signal value is returned to normally.As shown in Figure 4, circuit for detecting 125 comprises gain compensation unit 133, in order to amplify the yield value of impaired scanning signal Vscan-1, obtain the gain amplifier value, to compensate the signal value of impaired scanning signal Vscan-1, and then realize mode with the yield value that amplifies this impaired scanning signal, the signal value of amplifying this impaired scanning signal.
By above-mentioned explanation as can be known, the present invention can utilize the mode of average compensation, recurrence compensation or gain compensation to come the detecting of specific implementation ultrasonic probe performance and compensation method, and its each step comprises:
Step 1: receive the hyperacoustic echo signal that is sent by ultrasonic probe 110, to obtain one group of scanning signal Vscan, this group scanning signal Vscan is corresponding all ultrasound wave array elements 111 one to one;
Step 2: the mistiming compensation group scanning signal Vscan when sending according to ultrasound wave, to obtain the ultrasonic scanning information of diverse location on the sweep trace;
Step 3: whether the ultrasonic scanning information of diverse location meets the performance test value 127 of dispatching from the factory on the comparison sweep trace;
Step 4: judge that the recession level of each ultrasound wave array element 111 in the ultrasonic probe 110 is whether in compensable scope, if then enter compensation model, to compensate impaired scanning signal Vscan-1 wherein.
In addition, please refer to Fig. 5, it illustrates the detecting result and is presented at synoptic diagram on user's interface 126.The Three Estate that the detecting result can be divided into prompting, warning haply and lose efficacy is in order to show the state of each ultrasound wave array element 111.For example: show block representative prompting with yellow, with red display block representative warning, lost efficacy with the representative of black display block.When detecting N array element damage or decline, just show that according to the result who detects N shows that block is yellow, redness or black.The quantity of ultrasound wave array element 111 is not limit, for example be M (M is 64～256), when the recession level that detects each ultrasound wave array element 111 also in compensable scope, show the damaged condition of these a little ultrasound wave array elements 111 with user's interface 126.When the recession level that detects each ultrasound wave array element 111 surpasses compensable scope, can't use or lose efficacy with user's interface 126 these a little ultrasound wave array elements 111 of demonstration.
Therefore, the user can judge whether to continue to use or change ultrasonic probe 110 according to the detecting result who shows.
Above-described embodiment disclosed ultrasonic probe performance detecting and compensation system and method, can detect the scanning signal that each ultrasound wave array element receives and whether fail, but and the compensating signature value, therefore need not change under the situation of probe, still can continue to use ultrasonic probe, to save cost.
In sum, though the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.The persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (16)
1. a ultrasonic probe performance is detected and compensation system, it is characterized in that this device comprises:
Ultrasonic receiver, in order to receive the hyperacoustic echo signal that is sent by ultrasonic probe, to obtain one group of scanning signal, this ultrasonic probe comprises a plurality of ultrasound wave array elements, and this group scanning signal is to should a plurality of ultrasound wave array elements;
Analogy-digital converter scans signal in order to receive this group, and converts the ultrasonic scanning information of numerical digit form to;
The mistiming compensating circuit, the mistiming when sending according to this ultrasound wave compensates this group scanning signal, to obtain the ultrasonic scanning information of diverse location on the sweep trace;
The comparison circuit connects this mistiming compensating circuit, whether meets the performance test value of dispatching from the factory in order to the ultrasonic scanning information of comparing diverse location on this sweep trace; And
Circuit for detecting connects this comparison circuit, in order to the recession level of judging each ultrasound wave array element in this ultrasonic probe whether in compensable scope, if then enter compensation model, to compensate impaired scanning signal.
2. device as claimed in claim 1, it is characterized in that this circuit for detecting comprises the average compensating unit, in order to int at least two the scanning signals in the adjacent both sides that receive this impaired scanning signal, and with the mean value of these at least two the int scanning signals signal value as this impaired scanning signal.
3. device as claimed in claim 2, it is characterized in that the recession level of this impaired scanning signal wherein is lower than 70% when following of the test performance that dispatches from the factory, this circuit for detecting replaces the signal value of this impaired scanning signal at least with the mean value of these two int scanning signals.
4. device as claimed in claim 1, it is characterized in that this circuit for detecting comprises the linear regression compensating unit, in order in the regression function that calculates this group scanning signal corresponding to the regressand value of this impaired scanning signal, and with the signal value of this regressand value as this impaired scanning signal.
5. device as claimed in claim 4 is characterized in that the recession level of this impaired scanning signal wherein is lower than 70% when following of the test performance that dispatches from the factory, and this circuit for detecting replaces the signal value of this impaired scanning signal with the regressand value of this impaired scanning signal.
6. device as claimed in claim 1 is characterized in that wherein this circuit for detecting comprises gain compensation unit, in order to amplify the yield value of this impaired scanning signal, to compensate the signal value of this impaired scanning signal.
7. device as claimed in claim 6, it is characterized in that the recession level of this impaired scanning signal wherein is higher than 70% when above of the performance test of dispatching from the factory, this circuit for detecting is with the mode of the yield value that amplifies this impaired scanning signal, the signal value of amplifying this impaired scanning signal.
8. device as claimed in claim 1, it is characterized in that also comprising user's interface, connect this circuit for detecting, wherein when the recession level of each ultrasound wave array element in this ultrasonic probe is in this compensable scope, the damaged condition that shows these a plurality of ultrasound wave array elements with this user's interface, and when the recession level of each ultrasound wave array element in this ultrasonic probe surpasses this compensable scope, can't use or lose efficacy with these these a plurality of ultrasound wave array elements of user's interface demonstration.
9. a ultrasonic probe performance is detected and compensation method, it is characterized in that this method comprises:
Hyperacoustic echo signal that reception is sent by ultrasonic probe, to obtain one group of scanning signal, this ultrasonic probe comprises a plurality of ultrasound wave array elements, and this group scanning signal is to should a plurality of ultrasound wave array elements;
Mistiming when sending according to this ultrasound wave compensates this group scanning signal, to obtain the ultrasonic scanning information of diverse location on the sweep trace;
Whether the ultrasonic scanning information of comparing diverse location on this sweep trace meets the performance test value of dispatching from the factory; And
Judge that the recession level of each ultrasound wave array element in this ultrasonic probe is whether in compensable scope, if then enter compensation model, to compensate impaired scanning signal.
10. method as claimed in claim 9, it is characterized in that this enters this compensation model and comprises int at least two the scanning signals in the adjacent both sides that receive this impaired scanning signal, and with the mean value of these at least two the int scanning signals signal value as this impaired scanning signal.
11. method as claimed in claim 10, the recession level that it is characterized in that the scanning signal that this is impaired are lower than 70% when following of the test performance that dispatches from the factory, and replace the signal value of this impaired scanning signal at least with the mean value of these two int scanning signals.
12. method as claimed in claim 9 is characterized in that this enters this compensation model and comprises the regressand value that calculates in the regression function that this group scans signal corresponding to this impaired scanning signal, and with the signal value of this regressand value as this impaired scanning signal.
13. method as claimed in claim 12, the recession level that it is characterized in that the scanning signal that this is impaired are lower than 70% when following of the test performance that dispatches from the factory, and replace the signal value of this impaired scanning signal with the regressand value of this impaired scanning signal.
14. method as claimed in claim 9 is characterized in that this enters this compensation model and comprises the yield value that amplifies this impaired scanning signal, to compensate the intensity of this impaired scanning signal.
15. method as claimed in claim 14, the recession level that it is characterized in that the scanning signal that this is impaired is higher than 70% when above of the performance test of dispatching from the factory, this circuit for detecting is with the mode of the yield value that amplifies this impaired scanning signal, the signal value of amplifying this impaired scanning signal.
16. method as claimed in claim 9, when it is characterized in that recession level when each ultrasound wave array element in this ultrasonic probe is in this compensable scope, also comprise the damage scope that shows these a plurality of ultrasound wave array elements with user's interface, and when the recession level of each ultrasound wave array element in this ultrasonic probe surpasses this compensable scope, also comprise with these these a plurality of ultrasound wave array elements of user's interface demonstration and can't use or lose efficacy.
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| CN201510394268.2A CN105021713B (en) | 2013-04-26 | 2013-04-26 | Ultrasonic probe performance is detected and compensation device and method |
| CN201310151107.1A CN103245731B (en) | 2013-04-26 | 2013-04-26 | The detecting of ultrasonic probe performance and compensation system and method |
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| CN105021714A (en) * | 2015-07-28 | 2015-11-04 | 南通友联数码技术开发有限公司 | Ultrasonic probe test device |
| CN105467015A (en) * | 2014-09-29 | 2016-04-06 | 通用电气公司 | System and method for testing transducer elements of an acoustic probe |
| CN107966694A (en) * | 2017-10-24 | 2018-04-27 | 苏州佳世达电通有限公司 | A kind of bearing calibration of ultrasonic probe and system |
| CN109549665A (en) * | 2018-11-15 | 2019-04-02 | 青岛海信医疗设备股份有限公司 | A kind of ultrasonic device detection system |
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| Publication number | Publication date |
|---|---|
| CN103245731B (en) | 2015-08-05 |
| CN105021713A (en) | 2015-11-04 |
| CN105021713B (en) | 2017-12-29 |
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