CN219715736U - Ultrasonic test calibration system - Google Patents

Abstract

The utility model discloses an ultrasonic test calibration system, which comprises a test port, a detection module and a control module, wherein the detection module is used as a waveform detector and a waveform output device respectively in a time-sharing multiplexing way; the test port can transmit the transmitting signal of the ultrasonic equipment to the waveform detector, and can also transmit the echo signal to the ultrasonic equipment for imaging by the ultrasonic equipment; the waveform detector extracts signal parameters of the transmitted signals and transmits the signal parameters of the transmitted signals to the control module; the control module calculates signal parameters of the echo signals according to the imitation body parameters and the signal parameters of the transmitting signals, and transmits the signal parameters of the echo signals to the waveform output device; the waveform output device generates echo signals according to the signal parameters of the echo signals and transmits the echo signals to the test port. According to the utility model, the echo signal parameters are calculated according to the simulation parameters and the input signal parameters of the ultrasonic equipment, the simulation parameters can be flexibly set, and the test cost is reduced without using a physical phantom.

Description

Ultrasonic test calibration system

Technical Field

The utility model relates to the field of electricity, in particular to an ultrasonic testing and calibrating system.

Background

In the research and development process of ultrasonic equipment, links such as emission performance test, receiving performance test and imaging performance test of the ultrasonic equipment are required, and a large number of test equipment is used for testing and verification in the current conventional test method. For example, when testing the performance of the related parameters, an oscilloscope is required to be used for measuring the waveform parameters transmitted by the ultrasonic equipment, and when testing the performance of the related parameters received, a signal generator is required to be used for inputting known signals into the ultrasonic equipment, the number of channels of the oscilloscope and the signal generator is limited, and the channels are required to be manually switched for measurement, so that the testing process is complex; in the imaging accuracy test, various types of physical models are required to be used for imaging evaluation, and the physical models usually have fixed physical parameters and can only purchase a large number of different models, so that the test cost is increased.

Disclosure of Invention

The utility model aims to overcome the defects of complex testing flow and high testing cost of ultrasonic equipment in the prior art, and provides an ultrasonic testing and calibrating system.

The utility model solves the technical problems by the following technical scheme:

the utility model provides an ultrasonic test calibration system, which comprises a test port, a detection module and a control module,

one end of the detection module is connected with the test port, the other end of the detection module is connected with the control module, and the test port is connected with external ultrasonic equipment; the detection module is used as a waveform detector and a waveform output device in a time-sharing multiplexing way;

the test port is used for transmitting a transmitting signal sent by the ultrasonic equipment to the waveform detector and transmitting an echo signal to the ultrasonic equipment for imaging by the ultrasonic equipment;

the waveform detector is used for extracting signal parameters of the transmitting signal and transmitting the signal parameters of the transmitting signal to the control module;

the waveform output device is used for generating the echo signal according to the signal parameter of the echo signal and transmitting the echo signal to the test port;

the control module is used for calculating the signal parameters of the echo signals according to the imitation body parameters and the signal parameters of the transmitting signals and transmitting the signal parameters of the echo signals to the waveform output device.

Optionally, the imitation parameters include preset imitation parameters,

the control module is also used for receiving the preset imitation parameters.

Optionally, the control module is further configured to analyze the emission performance of the ultrasound device according to the signal parameter of the emission signal.

Optionally, the test port includes a plurality of signal channels, the number of signal channels being not less than the number of channels of the ultrasound device.

Optionally, the test port is further configured to transmit a test signal to the ultrasonic device for the ultrasonic device to test the receiving performance of the ultrasonic device;

the waveform output device is also used for generating the test signal according to the signal parameter of the test signal and transmitting the test signal to the test port;

the control module is also used for receiving signal parameters of the set test signals and transmitting the signal parameters of the test signals to the waveform output device.

Optionally, the test port includes an electrical connector socket or an acoustic coupling window, the transmitted signal including an electrical signal when the electrical connector socket is connected with the ultrasonic device;

the transmit signal comprises an acoustic signal when the acoustic coupling window is connected to the ultrasound device.

Optionally, the acoustic coupling window is further configured to convert the transmit signal into the electrical signal and the echo signal into the acoustic signal.

Optionally, the ultrasonic test calibration system further comprises a load controller,

one end of the load controller is connected with the electric connector socket, and the other end of the load controller is connected with the detection module;

the load controller is used for providing a load.

Optionally, the load controller includes a transducer mounting slot,

the transducer mounting groove is used for connecting a transducer to be tested;

the waveform output device is also used for transmitting an excitation signal to the transducer to be tested through the transducer mounting groove so that the transducer to be tested generates a response signal according to the excitation signal;

the load controller is used for transmitting the response signal to the waveform detector;

the waveform detector is also used for extracting signal parameters of the response signals and transmitting the signal parameters of the response signals to the control module;

the control module is also used for analyzing the performance of the transducer to be tested according to the signal parameters of the response signals.

Optionally, the ultrasonic test calibration system further comprises an interactive communication port,

one end of the interactive communication port is connected with the ultrasonic equipment, and the other end of the interactive communication port is connected with the control module;

the interactive communication port is used for transmitting signal parameters of the echo signals to the ultrasonic equipment;

the interactive communication port is also used for transmitting the time sequence signal sent by the ultrasonic equipment to the control module; the time sequence signal is used for representing the ultrasonic equipment to execute target operation at target execution time;

the control module is further used for detecting the actual execution time of the ultrasonic equipment for executing the target operation, calculating a time deviation value based on the actual execution time and the target execution time, and transmitting the time deviation value to the interactive communication port;

the interactive communication port is further used for transmitting the time deviation value to the ultrasonic equipment so as to enable the ultrasonic equipment to compensate the target execution time of the time sequence signal.

The utility model has the positive progress effects that:

the ultrasonic testing calibration system can cover all the required testing functions of ultrasonic equipment, the ultrasonic equipment is connected by using a testing port, the testing port comprises a plurality of signal channels, the channels do not need to be switched, and the testing flow is simplified; the detection module is used for extracting signal parameters from signals or generating signals according to the signal parameters, and the detection module is used as a waveform detector and a waveform output device respectively in a time-sharing multiplexing way, so that test equipment is reduced, and further test cost is controlled; and the control module is used for calculating echo signal parameters according to the simulation parameters and the input signal parameters of the ultrasonic equipment, the simulation parameters can be flexibly set, a physical phantom is not required, and the test cost is further reduced.

Drawings

Fig. 1 is a schematic structural diagram of an ultrasonic test calibration system according to embodiment 1 of the present utility model.

Fig. 2 is a schematic diagram of a calibration system for ultrasonic testing according to embodiment 1 of the present utility model.

Fig. 3 is a schematic flow chart of imaging of an ultrasonic device in the ultrasonic test calibration system of embodiment 1 of the present utility model.

Fig. 4 is a schematic structural diagram of an ultrasonic test calibration system according to embodiment 2 of the present utility model.

Fig. 5 is a waveform diagram of a transmission signal in the ultrasonic test calibration system of embodiment 2 of the present utility model.

Fig. 6 is a schematic structural diagram of a load controller of the ultrasonic test calibration system of embodiment 2 of the present utility model.

Fig. 7 is a schematic structural diagram of an ultrasonic test calibration system according to embodiment 3 of the present utility model.

Fig. 8 is a schematic structural diagram of an ultrasonic test calibration system according to embodiment 4 of the present utility model.

Detailed Description

The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown.

Example 1

The present embodiment provides an ultrasonic test calibration system, as shown in fig. 1, which includes a test port 1, a detection module 2, and a control module 3.

One end of the detection module 2 is connected with the test port 1, the other end of the detection module 2 is connected with the control module 3, and the test port 1 is connected with external ultrasonic equipment.

In one embodiment, the detection module 2 is connected to the test port 1 and the control module 3 through an automatic selection switch, so that the detection module 2 is switched to be used by the waveform detector 21 or the waveform output device 22 at different times or in different operation modes.

In an embodiment, the test port 1 comprises a plurality of signal channels, the number of signal channels being not less than the number of channels of the ultrasound device.

In this embodiment, the ultrasonic test calibration system supports electrical connection and acoustic coupling connection when connected with an ultrasonic device, and as shown in fig. 1, the test port 1 includes an electrical connector socket 11 or an acoustic coupling window 12.

In one embodiment, when an electrical connection is used, the connector of the ultrasonic device is connected to the electrical connector socket 11, and the signal sent by the ultrasonic device includes an electrical signal; when the acoustic coupling connection mode is used, a coupling agent is smeared on the acoustic coupling window 12, and the probe of the ultrasonic equipment is fixed at the acoustic coupling window 12, and at the moment, the signal sent by the ultrasonic equipment comprises an acoustic signal. It should be noted that the number of signal channels of the electrical connector jack 11 and the acoustic coupling window 12 each include not less than the number of channels of the ultrasonic device.

In an embodiment, when the acoustic coupling connection mode is used, the acoustic coupling window 12 is further used for performing an acousto-electric conversion on a signal, specifically, the acoustic coupling window 12 includes a transducer, such as a piezoelectric transducer, and the acoustic coupling window 12 converts a signal (such as a transmitting signal) sent by the ultrasonic device into an electrical signal through the transducer, and then transmits the electrical signal to the detection module 2, and converts a signal (such as an echo signal) output by the detection module 2 into an acoustic signal and then transmits the acoustic signal to the ultrasonic device.

In one embodiment, the transducer of the acoustic coupling window 12 may also act as a load between the ultrasound device and the ultrasound test calibration system, resulting in a more realistic transmit signal to the waveform detector 21. In the present embodiment, the result of the test performed through the acoustic coupling window 12 is closer to the real case than the result of the test performed through the electrical connector jack 11, and the result of the test performed through the electrical connector jack 11 is closer to the ideal case.

In an embodiment, the acoustic coupling window 12 further includes a motor, and when the acoustic coupling connection mode is used, the acoustic coupling window 12 obtains a physical parameter of the probe of the ultrasonic device, and the position of the transducer is controlled by the motor, so that the signal sent by the probe is more easily captured.

The embodiment can be applied to different working modes of transmission performance test, receiving performance test, imaging performance test or image optimization test of ultrasonic equipment, in an implementation scheme, the control module 3 can manually select the ultrasonic test calibration system to enter different working modes through a man-machine interaction interface, or can automatically select the ultrasonic test calibration system to enter different working modes according to the mode to be tested of the ultrasonic equipment to be tested.

Selecting an ultrasonic test calibration system to enter a working mode of emission performance test, wherein when the detection module 2 is used as the waveform detector 21, the test port 1 is used for transmitting an emission signal sent by ultrasonic equipment to the waveform detector 21; the waveform detector 21 is used for extracting signal parameters of the transmission signal and transmitting the signal parameters of the transmission signal to the control module 3; the control module 3 is used for analyzing the transmission performance of the ultrasonic equipment according to the signal parameters of the transmission signals.

At this time, the ultrasonic test calibration system directly monitors the waveform and time sequence of the emission signal of the ultrasonic equipment, records waveform data and analyzes the waveform data, and outputs the emission signal to reflect the emission performance of the ultrasonic equipment.

In an embodiment, the test port 1 collects the emission signal through the high-speed clock and the collector, the waveform detector 21 triggers and records the different signal channels separately, that is, the data extracted from each signal channel (i.e. the signal parameters of the emission signal) are stored in a column, where the signal parameters of the emission signal mainly include waveform information and peak information of the emission signal, for example, the waveform detector 21 can obtain the peak information of the emission signal through peak detection, obtain the time when the voltage peak appears, and extract the time when the voltage changes from zero level. The signal parameters of the present embodiment are not limited to the waveform information and peak information described above.

After extracting and recording the signal parameters of the emission signals for a period of time, the waveform detector 21 inputs the signal parameters of the emission signals of each channel into the control module 3, and the control module 3 calculates the performance parameters of the emission signals according to the signal parameters through a built-in analysis algorithm, so as to analyze the emission performance of the ultrasonic equipment. Specifically, the control module 3 may analyze the repetition stability, the symmetry of the amplitude of the positive and negative pulses, the symmetry of the width of the positive and negative pulses, and the cancellation of the positive and negative pulses of the emission signal through the waveform information of the emission signal of the single channel; the control module 3 can calculate the rising time and the falling time of the voltage through the peak information of the transmitting signal of the single channel, the moment when the voltage peak appears and the moment when the voltage changes from the zero level; the control module 3 can evaluate the amplitude consistency of the transmitted signals by comparing the voltage peak value and the average value of each signal channel; the control module 3 can evaluate the consistency of the voltage rise and the consistency of the voltage fall of the waveform generator in the ultrasonic device by the voltage rise time and the voltage fall time of each signal channel. Of course, the control module 3 of the present embodiment is not limited to analyzing the emission performance described above.

Selecting an ultrasonic test calibration system to enter a working mode of receiving performance test, wherein the detection module 2 is used as a waveform output device 22, and the control module 3 is also used for receiving signal parameters of a set test signal and transmitting the signal parameters of the test signal to the waveform output device 22; the waveform output device 22 is further configured to generate a test signal according to the signal parameter of the test signal, and transmit the test signal to the test port 1; the test port 1 is used for transmitting a test signal to the ultrasonic device for the ultrasonic device to test the receiving performance of the ultrasonic device.

At this time, the ultrasonic test calibration system measures the consistency of the receiving channel by outputting a test signal; measuring the sampling precision of an AFE (Active Front End) by delaying a test signal; and by filling test signals with different amplitudes into the receiving channel, the receiving sensitivity and the dynamic range of the ultrasonic equipment are evaluated.

In an embodiment, the control module 3 sets signal parameters of a test signal within the range of the ultrasonic device through an external software platform, and then transmits the signal parameters of the test signal to the waveform output device 22, the waveform output device 22 generates the test signal according to the signal parameters of the test signal and transmits the test signal to each channel of the ultrasonic device through the test port 1, and the ultrasonic device monitors the test signal of each channel in real time, so as to obtain the signal consistency, the receiving sensitivity and other receiving performance data of each channel of the ultrasonic device.

In one embodiment, the ultrasound device may derive a reception performance test result of the ultrasound device, such as by installing client software on the ultrasound device to collect reception performance data, and analyzing the reception performance data to obtain the reception performance test result.

Selecting an ultrasonic test calibration system to enter an imaging performance test or image optimization test working mode, wherein the detection module 2 can be respectively used as a waveform detector 21 and a waveform output device 22 at different moments, and the test port 1 is used for transmitting a transmitting signal sent by ultrasonic equipment to the waveform detector 21; the waveform detector 21 is used for extracting signal parameters of the transmission signal and transmitting the signal parameters of the transmission signal to the control module 3; the control module 3 is used for calculating signal parameters of the echo signals according to the imitation body parameters and the signal parameters of the transmitting signals and transmitting the signal parameters of the echo signals to the waveform output device; the waveform output device is used for generating echo signals according to signal parameters of the echo signals and transmitting the echo signals to the test port; the test port is also used for transmitting echo signals to the ultrasonic equipment for imaging or optimizing images by the ultrasonic equipment, and the imaging performance and the image optimizing performance of the ultrasonic equipment are tested by imaging verification and image evaluation.

At this time, the ultrasonic test calibration system simulates a physical phantom and a physical state change or a motion state change of the physical phantom according to the simulation parameters, then performs simulation calculation through the simulation parameters and signal parameters of the transmission signals to obtain echo data (signal parameters of the echo signals), converts the echo data into electric signals (echo signals), and transmits the electric signals to the ultrasonic equipment through the test port 1. If the electrical connection mode is used, the echo signals are directly output to the ultrasonic equipment through the electrical connector jack 11, and if the acoustic coupling connection mode is used, the echo signals are also required to be converted into acoustic signals through the acoustic coupling window and then output to the ultrasonic equipment.

In one embodiment, the imitation parameters include original imitation parameters and preset imitation parameters. The original imitation parameters are used for representing imitation parameters of basic physical body models provided in the ultrasonic test calibration system, including physical body models such as a human body standard body model, a blood body model, an elastography body model and the like; the preset imitation parameters are used for representing imitation parameters set in an external custom modeling mode and then are imported into the ultrasonic test calibration system. When the ultrasonic equipment enters a B mode (Brightness), the accuracy of the imaging position of the ultrasonic equipment can be tested through a standard phantom; when the ultrasonic equipment enters a blood flow imaging mode or a PW (pulsed wave Doppler, pulse Doppler) imaging mode, the accuracy of blood flow velocity can be tested through the blood flow mode; when the ultrasonic equipment enters an elastography mode, the shape change accuracy and the like of human tissues can be tested through the elastography body model.

Taking setting of the simulation parameters of the blood flow model by means of external custom modeling as an example, as shown in fig. 2, a square body model and a tube body model are constructed by three-dimensional modeling, the square body is used for simulating human tissue, the tube body is used for simulating blood simulation vessels, and the tube body is placed in the square body to obtain the relevant position relationship of the square body model and the tube body. Then respectively appointing the physical forms, physical materials and the like of the square body and the pipe body, converting the physical forms, the physical materials and the like into corresponding acoustic parameters, and appointing the time change conditions of the physical properties of the square body and the pipe body, such as size change, position change and the like, through a time function, wherein the set imitation parameters comprise the physical parameters and the time parameters.

Taking the tube body as an example, referring to fig. 2, the physical form of the tube body is set as fluid, the flowing direction of the fluid is designated, the condition that the flowing speed of the fluid changes with time is designated through a function, so that the interior of the tube body presents a pulsation movement mode, and the flowing state of blood flow is simulated. The physical form of the square body can be set to be solid and the like, so that the blood flow model can be simulated through the square body and the tube body, and the method can be used for related tests of blood flow imaging. Of course, the embodiment is not limited to the blood flow imaging test, for example, the simulated body parameter may be set to be a shape change, that is, a function of the change of the displacement of the simulated body material with time, so as to simulate the regular motion of the local deformation of the human body, which is used for elastography test and the like.

In an embodiment, the control module 3 may operate through a visual man-machine interaction interface, as shown in fig. 3, when the ultrasonic test calibration system enters the working mode of the imaging performance test or the image optimization test, the control module 3 enters the simulation function, determines whether the user-defined simulation is needed according to the test requirement of the user, if the user-defined simulation is selected, the model may be built through a three-dimensional modeling mode, if the user-defined simulation is not selected, the model provided inside the control module 3 may be directly used, then the physical parameters and the time parameters of the specified model are set through the man-machine interaction interface, wherein the physical parameters include physical form, physical material, physical property, physical shape, and the like, the time parameters may be a time function of the physical property or the physical shape changing with time, and the like, and then the control module 3 starts the simulation to convert the set physical parameters and time parameters into corresponding acoustic parameters (i.e., simulation parameters).

It should be noted that, in actual operation, steps from entering the simulation function to starting the simulation can be omitted adaptively, that is, setting of the simulation parameters can be completed and stored in advance by the ultrasonic test calibration system. For example, the simulation parameters may be obtained directly from the inside of the control module 3, or the physical parameters and the time parameters may be introduced from the outside, and then the simulation may be started and converted into the simulation parameters.

In an embodiment, the parameters of the imitation body in the control module 3 can be directly used, or the parameters of the imitation body can be changed through parameter adjustment and then used.

Since the test port 1 includes an electrical connector socket and an acoustic coupling window, as shown in fig. 3, it is monitored whether the test port 1 is in an electrical connection form, if so, a transmission signal sent by the ultrasonic device is directly transmitted to the waveform detector 21, and if not, it is indicated that the test port 1 is in an acoustic coupling connection form, and further, it is necessary to perform an acoustic-electric conversion on the transmission signal, that is, convert an acoustic wave to be transmitted into an electrical signal, and then transmit the electrical signal to the waveform detector 21.

In an embodiment, the signal emitted by the ultrasonic device during imaging is mainly a pulse signal, and the main characteristics of the pulse include waveform, amplitude, width and repetition frequency, as shown in fig. 3, the waveform detector 21 determines whether the emitted signal is a valid signal by determining whether the emitted signal has a waveform, then the waveform detector 21 further extracts signal parameters of the emitted signal, such as signal parameters of amplitude information, and then the waveform detector 21 transmits the signal parameters of the emitted signal to the control module 3 for simulation calculation.

In the simulation calculation step, the control module 3 simulates an acoustic simulation process, that is, a process of transmitting a transmission signal of the ultrasonic device to a human body and generating an echo signal by reflection, refraction, diffraction and the like, through a built-in simulation algorithm. Specifically, the control module 3 uses the signal parameters of the transmission signals as excitation parameters of the virtual vibrating elements, then calculates echo data (i.e., signal parameters of the echo signals) of each virtual vibrating element according to the simulation parameters and the signal parameters of the transmission signals, the control module 3 sends the echo data to the waveform output device 22, and the waveform output device 22 generates the echo signals according to the echo data.

In an embodiment, the control module 3 monitors the emission signal of the test port 1 in real time while performing simulation calculation, sequentially extracts signal parameters, performs simulation calculation and the like, and the echo signal changes in real time in the simulation process until the simulation is stopped, at this time, software work and hardware work in the ultrasonic test calibration system are stopped, the emission signal sent by the ultrasonic device is not received any more, and in an embodiment, the control module 3 is further configured to store the echo signal output before. The waveform output unit 22 continuously outputs echo signals changing in real time when transmitting the echo signals to the test port 1, and when the ultrasonic equipment is switched to a receiving state, the echo signals can be received for real-time imaging, wherein the imaging refers to generating an image, the ultrasonic equipment can evaluate the image to test the imaging performance of the ultrasonic equipment, and the image is optimized by calibrating the ultrasonic equipment, so that the image optimizing performance of the ultrasonic equipment is tested.

It should be noted that, the echo signal refers to a voltage signal corresponding to the echo, when the electrical connector socket 11 is used to connect with the ultrasonic device, the echo signal may be directly transmitted to the device end of the ultrasonic device, and when the acoustic coupling window 12 is used to connect with the ultrasonic device, the acoustic coupling window 12 needs to convert the echo signal into an acoustic signal, and then transmit the acoustic signal to the probe end of the ultrasonic device.

In the embodiment, the ultrasonic test calibration system is provided, all test functions required by ultrasonic equipment can be covered, the ultrasonic equipment is connected by using the test port, the test port comprises a plurality of signal channels, the channels do not need to be switched, and the test flow is simplified; the detection module is used for extracting signal parameters from signals or generating signals according to the signal parameters, and the detection module is used as a waveform detector and a waveform output device respectively in a time-sharing multiplexing way, so that test equipment is reduced, and further test cost is controlled; and the control module is used for calculating echo signal parameters according to the simulation parameters and the input signal parameters of the ultrasonic equipment, the simulation parameters can be flexibly set, a physical phantom is not required, and the test cost is further reduced.

Example 2

This embodiment is a further improvement over embodiment 1 in that the ultrasonic test calibration system further includes a load controller 111, as shown in fig. 4. One end of the load controller 111 is connected with the electric connector socket, the other end of the load controller 111 is connected with the detection module 2, and the load controller 111 is used for providing a load.

In this embodiment, the pulse generator of the ultrasonic device has some differences in output waveforms under the condition of no load and no load, and when the signal is transmitted by the pulse generator is tested without load, the transmitted waveform is closer to an ideal waveform diagram, as shown in the left waveform diagram of fig. 5, the signal output performance of the pulse generator can be evaluated; when the signal is transmitted by the pulse generator with load test, the transmitted waveform is closer to the actual waveform diagram of the real situation, as shown in the waveform diagram on the right side of fig. 5, and the load capacity of the pulse generator can be evaluated.

Referring to fig. 6, the load controller 111 incorporates various standard loads, including load types such as wires, resistors, piezoelectric transducers, etc., and the type of load and its characteristics that can be selectively accessed in the load controller 111 to assist in evaluating the transmission performance of the pulse generator of the ultrasonic device. Of course, the load controller 111 of the present embodiment may also assist in testing the imaging performance test and the receiving performance test of the ultrasonic device by accessing different loads, and the testing process is closer to the real situation.

In an alternative embodiment, the load of the load controller 111 may be replaced, such as the piezoelectric transducer load (including backing, matching layer, etc.) may be replaced with a custom piezoelectric transducer array for correlation testing.

In this embodiment, the ultrasonic test calibration system may also be applied to performance testing of the transducer, and the ultrasonic test calibration system is selected to enter the working mode of the performance testing of the transducer, and will automatically cut off the connection between the acoustic coupling window 12 and the detection module 2, and cut off the connection between the electrical connector socket 11 and the load connector, forming an internal closed loop test.

In one embodiment, the load controller 111 includes a transducer mounting slot. The transducer mounting groove is used for connecting a transducer to be tested; the waveform output device transmits the excitation signal to the transducer to be tested through the transducer mounting groove so that the transducer to be tested generates a response signal according to the excitation signal; the load controller transmits the response signal to the waveform detector; the waveform detector extracts signal parameters of the response signals and transmits the signal parameters of the response signals to the control module; the control module analyzes the performance of the transducer to be tested according to the signal parameters of the response signals.

In this embodiment, the transducer to be tested is a transducer array provided by the ultrasonic test calibration system by default, and may be replaced by a custom transducer array in the transducer mounting slot for testing.

Referring to fig. 6, the load controller 111 further includes a stepping motor, a sliding rail, a telescopic rod, an excitation port, a pin arranging port, and the like, and when the stepping motor rotates, the sliding rail can be controlled to move and the telescopic rod is driven to perform telescopic motion. The sliding rail is connected with the transducer to be tested in the transducer mounting groove through the telescopic rod, in this embodiment, the connection point of the telescopic rod and the sliding rail is used as a moving contact, the connection point of the telescopic rod and the transducer to be tested is used as a connecting contact, the moving direction of the sliding rail is set to be the vertical direction, namely, the Y axis, and the telescopic direction of the telescopic rod is set to be the horizontal direction, namely, the X axis.

Before testing, physical information (such as array element number, array element width, array radian and the like) of the transducer to be tested can be input through a human-computer interaction interface, the control module 3 calculates the coordinates of each array element of the transducer to be tested according to the set physical information, then the stepping motor is controlled to rotate, then the movable contact can change along with the movement of the sliding track, so that the Y position of the connecting contact is changed, the X position of the connecting contact can be changed through the telescopic movement of the telescopic rod, and finally the connecting contact can be moved to a preset coordinate position, so that the transducer mounting groove is deformed from a straight line to form an arc shape. As shown in fig. 6, the left side is the array deformation result in which the connection contacts are linear, and the right side is the array deformation result in which the connection contacts are arc. When the transducer mounting groove is deformed from a straight line to form an arc shape, the transducer to be measured can be placed in the transducer mounting groove, meanwhile, the piezoelectric sheet of the transducer to be measured is exposed outside, the array element of the transducer to be measured can be electrically connected with the connecting contact, the electrode end of the transducer to be measured forms a pin header through the lead out, and the pin header is inserted into the pin header port, so that the transducer to be measured is connected into an ultrasonic test calibration system.

When testing, an excitation signal can be set through an upper computer, the waveform output device 22 is controlled to output the excitation signal, the excitation signal acts on the electrode of the transducer to be tested through an excitation port in the load controller 111, the excitation signal enables the transducer to be tested to vibrate, meanwhile, the voltage of the transducer to be tested (namely, a response signal generated by the transducer to be tested according to the excitation signal) is detected by the waveform detector 21, the waveform detector 21 extracts signal parameters of the response signal, and the frequency spectrum information of the transducer can be obtained through calculation of the signal parameters of the response signal through the control module 3.

In an implementation scheme, the standard load connected into the upper computer can be selected by the upper computer, the load can be adjusted, the process of impedance matching can be simulated, and different test loads are selected to observe the actual performance of the transducer to be tested.

In this embodiment, the load type and physical properties between the ultrasonic device and the ultrasonic test calibration system are adjusted by the load controller to provide different test conditions for detecting the function and performance of the ultrasonic device. In addition, the load controller may also be used to test the performance of the transducer, providing a reference for transducer sizing and impedance matching adjustment.

Example 3

This embodiment is a further improvement over embodiment 2 in that the ultrasonic test calibration system further includes an interactive communication port 4, as shown in fig. 7. One end of the interactive communication port 4 is connected with the ultrasonic equipment, and the other end of the interactive communication port 4 is connected with the control module.

In one embodiment, the ultrasonic test calibration system is in data communication with the ultrasonic device via the interactive communication port, e.g., the interactive communication port can transmit signal parameters of the echo signal to the ultrasonic device without conversion to the echo signal; for another example, when the receiving performance test result is obtained by installing the client software on the ultrasonic device, the interactive communication port may transmit the receiving performance test result to the ultrasonic test calibration system.

In one embodiment, the ultrasonic test calibration system synchronously calibrates the timing of the ultrasonic device through the interactive communication port, including the transmission timing, the reception timing, the gain control timing, and the like. For example, the interactive communication port 4 transmits a time sequence signal sent by the ultrasonic equipment to the control module 3, wherein the time sequence signal characterizes the ultrasonic equipment to execute target operation at target execution time; the control module 3 detects the actual execution time of the ultrasonic device to execute the target operation, calculates a time deviation value based on the actual execution time and the target execution time, and transmits the time deviation value to the interactive communication port 4; the interactive communication port 4 also transmits the time offset value to the ultrasound device for the ultrasound device to compensate for the target execution time of the timing signal.

For example, the original instruction is set to be that the ultrasonic device transmits an a signal after 6s, the ultrasonic device generates a corresponding time sequence signal based on the information, and the time sequence signal is transmitted to the interactive communication port 4 of the ultrasonic test calibration system through the communication port of the ultrasonic device. The control module 3 synchronizes this information and monitors whether the ultrasound device has transmitted an a signal after 6s, and if the ultrasound device actually transmits an a signal after 7s, this time difference is fed back to the ultrasound device, which may change the original instruction to the ultrasound device transmitting an a signal after 5s, so that the ultrasound device can actually transmit an a signal after 6 s.

In an embodiment, the ultrasonic test calibration system is selected to enter a working mode of time sequence calibration, the control module 3 calculates the transmission delay time between different channels of the ultrasonic equipment, combines the channel enabling condition detected by the waveform detector 21, draws the aperture moving condition and the transmission delay condition in the aperture in real time, compares the transmission delay conditions in each aperture, and analyzes the delay accuracy.

In this embodiment, when the ultrasonic device has a communication port, the ultrasonic test calibration system may be connected to the ultrasonic device through the interactive communication port, and the ultrasonic test calibration system may not only directly perform data communication with the ultrasonic device, but also perform synchronous calibration on the timing sequence of the ultrasonic device.

Example 4

This embodiment is a further improvement over embodiment 3 in that the ultrasonic test calibration system further comprises a display and a memory, as shown in fig. 8, the control module 3 comprising a CPU (central processing unit ) and a GPU (graphics processing unit, graphics processor). The CPU is used for controlling the running processes of hardware and software, controlling the hardware to perform test acquisition, controlling the software to perform data analysis, simulating output and other operations; the memory is used for storing software application programs and test data; the GPU is used for carrying out parallel calculation in the data analysis and simulation process, so that the data processing and simulation speed is accelerated; the display is used for displaying the control panel and the data calculation result.

In one embodiment, the ultrasonic test calibration system may store the test results of the ultrasonic device via the memory; the test result of the ultrasonic equipment can be displayed through the display, and in addition, the test result can be updated in real time and displayed in a chart mode; the test results can also be shared to other devices, such as a USB flash disk (mobile storage device), a cloud server or a printer, and the like, through a wired or wireless connection mode.

In the embodiment, the ultrasonic testing and calibrating system integrates various functional modules, is more humanized, can meet more use requirements, accelerates data processing and simulation speed through parallel calculation of the CPU and the GPU, and further improves the testing efficiency of the ultrasonic testing and calibrating system on ultrasonic equipment.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.

Claims (7)

1. An ultrasonic test calibration system is characterized by comprising a test port, a detection module and a control module,

one end of the detection module is connected with the test port, the other end of the detection module is connected with the control module, and the test port is connected with external ultrasonic equipment; the detection module is used as a waveform detector and a waveform output device in a time-sharing multiplexing way;

the test port is used for transmitting a transmitting signal sent by the ultrasonic equipment to the waveform detector and transmitting an echo signal to the ultrasonic equipment for imaging by the ultrasonic equipment;

the waveform detector is used for extracting signal parameters of the transmitting signal and transmitting the signal parameters of the transmitting signal to the control module;

the waveform output device is used for generating the echo signal according to the signal parameter of the echo signal and transmitting the echo signal to the test port;

the control module is used for calculating the signal parameters of the echo signals according to the imitation body parameters and the signal parameters of the transmitting signals and transmitting the signal parameters of the echo signals to the waveform output device.

2. The ultrasonic test calibration system of claim 1, wherein the test port comprises a plurality of signal channels, the number of signal channels being no less than the number of channels of the ultrasonic device.

3. The ultrasonic test calibration system of claim 1, wherein said test port comprises an electrical connector socket or an acoustic coupling window,

when the electric connector jack is connected with the ultrasonic equipment, the transmitting signal comprises an electric signal;

the transmit signal comprises an acoustic signal when the acoustic coupling window is connected to the ultrasound device.

4. The ultrasonic test calibration system of claim 3, wherein the acoustic coupling window is further configured to convert the transmit signal to the electrical signal and the echo signal to the acoustic signal.

5. The ultrasonic test calibration system of claim 3, further comprising a load controller,

one end of the load controller is connected with the electric connector socket, and the other end of the load controller is connected with the detection module;

the load controller is used for providing a load.

6. The ultrasonic test calibration system of claim 5, wherein said load controller comprises a transducer mounting slot,

the transducer mounting groove is used for connecting a transducer to be tested;

the waveform output device is also used for transmitting an excitation signal to the transducer to be tested through the transducer mounting groove so that the transducer to be tested generates a response signal according to the excitation signal;

the load controller is used for transmitting the response signal to the waveform detector;

the waveform detector is also used for extracting signal parameters of the response signals and transmitting the signal parameters of the response signals to the control module;

the control module is also used for analyzing the performance of the transducer to be tested according to the signal parameters of the response signals.

7. The ultrasonic test calibration system of claim 1, further comprising an interactive communication port,

one end of the interactive communication port is connected with the ultrasonic equipment, and the other end of the interactive communication port is connected with the control module;

the interactive communication port is used for transmitting signal parameters of the echo signals to the ultrasonic equipment;

the interactive communication port is also used for transmitting the time sequence signal sent by the ultrasonic equipment to the control module; the time sequence signal is used for representing the ultrasonic equipment to execute target operation at target execution time;

the control module is further used for detecting the actual execution time of the ultrasonic equipment for executing the target operation, calculating a time deviation value based on the actual execution time and the target execution time, and transmitting the time deviation value to the interactive communication port;

the interactive communication port is further used for transmitting the time deviation value to the ultrasonic equipment so as to enable the ultrasonic equipment to compensate the target execution time of the time sequence signal.