Verification system and method for foundation pile ultrasonic detector

Abstract

The invention relates to the technical field of checking of foundation pile detectors, and discloses a checking system and method for a foundation pile ultrasonic detector. The fixing module is connected with the checking standard water tank, and the fixing module is used for installing the foundation pile ultrasonic detector in the checking standard water tank; the temperature control module is connected with the checking standard water tank, and the temperature control module is used for carrying out constant temperature control on the water temperature in the checking standard water tank; and the checking module is connected with the foundation pile ultrasonic detector and is used for checking whether the foundation pile ultrasonic detector meets the technical standard or not. By arranging the checking standard water tank and the temperature control module, the stability of a detection environment is ensured, so that the foundation pile ultrasonic detector is ensured to test under a standard condition, the accuracy of a detection result is improved, automatic installation, temperature control and performance checking of the foundation pile ultrasonic detector are realized, manual intervention is reduced, and the working efficiency is improved. And the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pile foundation detector verification, and in particular to a verification system and method for a pile foundation ultrasonic detector. Background Art

[0002] In pile foundation testing, ultrasonic detectors are important tools for evaluating the integrity and quality of pile foundations. However, due to various factors, such as instrument aging, improper operation, or changes in environmental conditions, errors may occur in the detector, affecting the accuracy of the test results. Therefore, it is crucial to regularly check the performance of the detector to ensure the reliability of its measurement results. Traditional verification methods usually require manual testing in a standard water tank. This method is not only time-consuming and labor-intensive, but also costly, and the water temperature of the water tank and the measurement distance cannot be accurately controlled. Therefore, there is an urgent need for a verification system and method for pile foundation ultrasonic detectors that can quickly and easily verify pile foundation ultrasonic detectors. Summary of the invention

[0003] The object of the present invention is to provide a verification system and method for a pile foundation ultrasonic detector, aiming to solve the above-mentioned problem.

[0004] The present invention provides a verification system for a pile foundation ultrasonic detector, the system comprising:

[0005] Check standard sinks;

[0006] A fixing module connected to the verification standard water tank, wherein the fixing module is used to install the foundation pile ultrasonic detector in the verification standard water tank;

[0007] A temperature control module is connected to the verification standard water tank, and the temperature control module is used to perform constant temperature control on the water temperature in the verification standard water tank;

[0008] A verification module connected to the pile foundation ultrasonic detector, the verification module is used to verify whether the pile foundation ultrasonic detector meets the technical standards;

[0009] Wherein, the foundation pile ultrasonic detector includes a transmitting probe and a receiving probe.

[0010] Preferably, the fixing module comprises a guide rail, a fixing block, a sliding block, a transmitting probe fixture and a receiving probe fixture;

[0011] The guide rail is installed on the top of the verification standard water tank, the fixed block is fixedly installed on one end of the guide rail, and the sliding block is slidably installed on the other end of the guide rail;

[0012] The transmitting probe fixture is arranged on the fixed block, and is used to clamp the transmitting probe. The receiving probe fixture is arranged on the sliding block, and is used to clamp the receiving probe.

[0013] Preferably, a plurality of photoelectric components are arranged on the guide rail, and the distance between the photoelectric components and the fixing block is 400mm, 500mm, 600mm, 700mm and 800mm;

[0014] When the sliding block passes through the photoelectric component, the photoelectric component sends out a photoelectric signal.

[0015] Preferably, the temperature control module includes a heater, a water pump, a controller and a temperature sensor;

[0016] The temperature sensor is installed in the verification standard water tank, and the temperature sensor is used to detect the real-time water temperature in the verification standard water tank;

[0017] The water pump inlet is connected to the verification standard water tank outlet, the water pump outlet is connected to the heater inlet, the heater outlet is connected to the verification standard water tank inlet, the controller is connected to the heater, the water pump and the temperature sensor, the controller is used to receive the real-time water temperature detected by the temperature sensor, and determine the temperature difference between the real-time water temperature and the preset standard temperature, and control the operating status of the heater and the water pump according to the temperature difference.

[0018] Preferably, the verification module includes an acquisition unit, a processing unit and a verification unit;

[0019] The acquisition unit is connected to the transmitting probe, the receiving probe and the photoelectric component, and is used to acquire the detection sound of the pile ultrasonic detector and the photoelectric signal corresponding to the detection sound;

[0020] The processing module is used to determine the ultrasonic wave velocity according to the detected acoustic time and photoelectric signal;

[0021] The verification module is used to determine whether the ultrasonic wave velocity of the pile foundation detector meets the technical standards based on the ultrasonic wave velocity and the theoretical wave velocity.

[0022] Preferably, the processing module is used to determine the ultrasonic wave velocity according to the detected acoustic time and photoelectric signal, including:

[0023] determining a detection distance according to the photoelectric signal;

[0024] Draw a distance measurement-sound time curve based on the detection distance and the detection sound time, determine the intercept of the distance measurement-sound time curve and the sound time value axis by linear regression, and set the intercept as t0;

[0025] Determine the detection wave velocity corresponding to each detection distance according to the detection sound time and intercept, and set the average value of the detection wave velocity as the ultrasonic wave velocity;

[0026] The detection wave velocity is determined according to the following formula:

[0027]

[0028] Among them, Vi represents the detection wave velocity corresponding to the i-th detection distance, di represents the i-th detection distance, ti represents the detection sound time corresponding to the i-th detection distance, and t0 represents the intercept.

[0029] Preferably, the processing module is used to determine the detection distance according to the photoelectric signal, including:

[0030] The photoelectric component is provided with a code, and the photoelectric signal contains the code information;

[0031] The installation position of the optoelectronic component is determined according to the coding information, and the detection distance is determined based on the installation position of the optoelectronic component.

[0032] Preferably, the verification module is used to determine whether the ultrasonic detector for pile foundation meets the technical standards according to the ultrasonic wave velocity and the theoretical wave velocity, including:

[0033] Determine a preset standard temperature of a standard water tank for verification, determine a corresponding theoretical wave velocity according to the preset standard temperature, and determine an error value between the ultrasonic wave velocity and the theoretical wave velocity;

[0034] If the error value is less than or equal to the preset error value, it is determined that the foundation pile ultrasonic detector meets the technical standards;

[0035] If the error value is greater than the preset error value, it is determined that the foundation pile ultrasonic detector does not meet the technical standards;

[0036] Wherein, the preset error value is 1%.

[0037] Preferably, the error value is determined according to the following formula:

[0038]

[0039] Where E represents the error value.

[0040] The present invention also discloses a verification method for a pile foundation ultrasonic detector, which is applied to the verification system for the pile foundation ultrasonic detector. The method comprises:

[0041] Acquire the detection sound of the pile foundation ultrasonic detector and the photoelectric signal corresponding to the detection sound;

[0042] Determine the ultrasonic wave velocity according to the detected acoustic timing and photoelectric signal;

[0043] Determine whether the ultrasonic wave velocity and the theoretical wave velocity of the pile foundation ultrasonic detector meet the technical standards.

[0044] Compared with the prior art, the beneficial effect of the present invention is that the present invention ensures the stability of the detection environment by setting a verification standard water tank and a temperature control module, thereby ensuring that the foundation pile ultrasonic detector is tested under standard conditions and improving the accuracy of the detection results. The fixing module, temperature control module and verification module in the system cooperate with each other to realize the automatic installation, temperature control and performance verification of the foundation pile ultrasonic detector, reduce manual intervention and improve work efficiency. Through the design of optoelectronic components and controllers, real-time monitoring of the detection process can be achieved, and the working status of the heater and water pump can be adjusted according to real-time data to ensure constant water temperature. At the same time, the detection results can be fed back in time to facilitate the operator to make judgments. At the same time, the method of determining the ultrasonic wave velocity based on the detection sound time and the photoelectric signal takes into account the influence of the intercept, so that the calculated wave velocity is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0046] Figure 1 It is a structural schematic diagram of a verification system for a pile foundation ultrasonic detector according to the present invention;

[0047] Figure 2 is a functional block diagram of a verification module in an embodiment of the present invention;

[0048] Figure 3 It is a flow chart of a verification method for a foundation pile ultrasonic detector according to the present invention.

[0049] Among them, 1. Check standard water tank; 2. Guide rail; 3. Fixed block; 4. Sliding block; 5. Transmitter probe fixture; 6. Receiving probe fixture; 7. Photoelectric component; 8. Heater; 9. Water pump; 10. Controller; 11. Temperature sensor. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0051] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0052] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0053] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] like Figure 1-Figure 2 As shown, the present invention provides a verification system for a pile ultrasonic detector, comprising:

[0055] Check standard sink 1;

[0056] A fixing module is connected to the verification standard water tank 1, and the fixing module is used to install the foundation pile ultrasonic detector in the verification standard water tank 1;

[0057] A temperature control module is connected to the verification standard water tank 1, and is used to perform constant temperature control on the water temperature in the verification standard water tank 1;

[0058] A verification module, connected to the pile foundation ultrasonic detector, and used to verify whether the pile foundation ultrasonic detector meets the technical standards;

[0059] Among them, the foundation pile ultrasonic detector includes a transmitting probe and a receiving probe.

[0060] In some embodiments of the present application, the fixing module includes a guide rail 2, a fixing block 3, a sliding block 4, a transmitting probe fixture 5 and a receiving probe fixture 6;

[0061] The guide rail 2 is installed on the top of the verification standard water tank 1, the fixed block 3 is fixedly installed at one end of the guide rail 2, and the sliding block 4 is slidably installed at the other end of the guide rail 2; the transmitting probe clamp 5 is arranged on the fixed block 3, and the transmitting probe clamp 5 is used to clamp the transmitting probe, and the receiving probe clamp 6 is arranged on the sliding block 4, and the receiving probe clamp 6 is used to clamp the receiving probe.

[0062] Through the design of the fixed module, the position of the transmitting probe and the receiving probe in the water tank can be precisely adjusted, thereby improving the accuracy and flexibility of the detection. The setting of the guide rail 2 allows the sliding block 4 to move freely on it, while the fixed block 3 ensures the stability of the transmitting probe fixture 5. The combination of the sliding block 4 and the receiving probe fixture 6 allows the user to adjust the position of the receiving probe as needed. Overall, this modular design is not only easy to install and maintain, but also can adapt to a variety of different detection needs.

[0063] It can be understood that the transmitting probe fixture 5 and the receiving probe fixture 6 are both arranged on the same side, so as to ensure that the transmitting probe and the receiving probe are checked on the same side.

[0064] In some embodiments of the present application, a plurality of optoelectronic components 7 are arranged on the guide rail 2, and the distance between the optoelectronic components 7 and the fixing block 3 is 400 mm, 500 mm, 600 mm, 700 mm and 800 mm;

[0065] When the sliding block 4 passes through the photoelectric component 7, the photoelectric component 7 sends out a photoelectric signal.

[0066] Several photoelectric components 7 are arranged on the guide rail 2, and these photoelectric components 7 are evenly distributed at different positions of the guide rail 2 to ensure that the movement state of the sliding block 4 can be accurately detected. Specifically, the distances between the photoelectric components 7 and the fixed block 3 are 400mm, 500mm, 600mm, 700mm and 800mm respectively. Such a layout can cover a longer measurement range on the guide rail 2, thereby providing continuous monitoring data. When the sliding block 4 moves along the guide rail 2 and passes through these photoelectric components 7, each photoelectric component 7 will emit a photoelectric signal. These signals can be captured by the corresponding receivers and used to determine the key position parameters of the sliding block 4. By analyzing these photoelectric signals, real-time monitoring and precise control of the movement state of the sliding block 4 can be achieved.

[0067] In some embodiments of the present application, the temperature control module includes a heater 8, a water pump 9, a controller 10 and a temperature sensor 11;

[0068] The temperature sensor 11 is installed in the verification standard water tank 1, and the temperature sensor 11 is used to detect the real-time water temperature in the verification standard water tank 1;

[0069] The inlet of the water pump 9 is connected to the outlet of the verification standard water tank 1, the outlet of the water pump 9 is connected to the inlet of the heater 8, the outlet of the heater 8 is connected to the inlet of the verification standard water tank 1, the controller 10 is connected to the heater 8, the water pump 9 and the temperature sensor 11, the controller 10 is used to receive the real-time water temperature detected by the temperature sensor 11, and determine the temperature difference between the real-time water temperature and the preset standard temperature, and control the operating status of the heater 8 and the water pump 9 according to the temperature difference.

[0070] The propagation speed of ultrasound in liquids at different temperatures is different. In order to ensure the accuracy of the verification results, it is necessary to control the water temperature in the verification standard water tank 1 to maintain a constant temperature. By precisely controlling the water temperature, the temperature control module ensures that the water temperature in the verification standard water tank 1 remains within the set temperature range. When the temperature sensor 11 detects that the water temperature is lower than the preset standard temperature, the controller 10 will instruct the heater 8 to start working to increase the water temperature. On the contrary, if the water temperature is higher than the preset standard temperature, the controller 10 will start the water pump 9 to lower the water temperature by circulating water. The controller 10 continuously monitors the feedback from the temperature sensor 11 to achieve dynamic adjustment of the water temperature, thereby maintaining the stability of the water temperature. This temperature control mechanism is crucial to ensuring the detection accuracy of the ultrasonic detector, because even slight changes in temperature may affect the propagation speed of ultrasound in water, thereby affecting the accuracy of the detection results.

[0071] In some embodiments of the present application, the verification module includes an acquisition unit, a processing unit, and a verification unit;

[0072] The acquisition unit is connected to the transmitting probe, the receiving probe and the photoelectric component 7, and is used to acquire the detection sound of the foundation pile ultrasonic detector and the photoelectric signal corresponding to the detection sound;

[0073] The processing module is used to determine the ultrasonic wave velocity according to the detected acoustic time and photoelectric signals;

[0074] The verification module is used to determine whether the ultrasonic pile detector meets the technical standards based on the ultrasonic wave velocity and the theoretical wave velocity.

[0075] It can be seen that this solution reduces manual operation errors by obtaining the detection sound time and the corresponding photoelectric signal. It realizes the accurate calculation of ultrasonic wave velocity and ensures the reliability of ultrasonic detection data of pile foundation. By comparing with the theoretical wave velocity, it can effectively judge whether the ultrasonic detector of pile foundation meets the technical standards and ensure the quality of the project. It reduces the technical requirements for operators and improves the convenience and popularity of detection work. It improves the automation level of pile foundation quality assessment and provides a scientific basis for project acceptance.

[0076] In some embodiments of the present application, the processing module is used to determine the ultrasonic wave velocity according to the detected acoustic time and photoelectric signal, including:

[0077] Determine the detection distance based on the photoelectric signal;

[0078] Based on the detection distance and the detection sound time, a distance measurement-sound time curve is drawn, and the intercept of the distance measurement-sound time curve and the sound time value axis is determined by linear regression, and the intercept is set to t0;

[0079] Determine the detection wave velocity corresponding to each detection distance according to the detection sound time and intercept, and set the average value of the detection wave velocity as the ultrasonic wave velocity;

[0080] The detection wave velocity is determined according to the following formula:

[0081]

[0082] Among them, Vi represents the detection wave velocity corresponding to the i-th detection distance, di represents the i-th detection distance, ti represents the detection sound time corresponding to the i-th detection distance, and t0 represents the intercept.

[0083] The processing module uses the photoelectric signal to determine the actual detection distance between the ultrasonic emission point and the receiving point. Based on the obtained detection distance and the corresponding detection sound time data, a distance measurement-sound time curve is drawn. This curve reflects the relationship between sound time and distance when the ultrasonic wave propagates in the medium. The intersection of the distance measurement-sound time curve and the sound time value axis is analyzed, the sound time value of the intersection is determined, and it is set to t0. This t0 value represents the sound time when there is no ultrasonic propagation distance, that is, the time difference between ultrasonic emission and reception, excluding any propagation time. Use the detection sound time to subtract t0 to obtain the actual time used for ultrasonic wave propagation in the medium. Then, combined with the detection distance, the detection wave speed corresponding to each detection distance is calculated. This wave speed is the actual propagation speed of ultrasonic wave under specific conditions. Finally, the average value of all detection wave speeds is calculated, and this average value is set as the wave speed of ultrasonic wave under current conditions. This average wave speed can be used as the basis for subsequent measurement and analysis to improve the accuracy and reliability of ultrasonic measurement.

[0084] In some embodiments of the present application, the processing module is used to determine the detection distance based on the photoelectric signal, including: the photoelectric component 7 is provided with a code, and the photoelectric signal contains the coding information; the installation position of the photoelectric component 7 is determined according to the coding information, and the detection distance is determined based on the installation position of the photoelectric component 7.

[0085] The processing module is designed to analyze the photoelectric signals received from the photoelectric sensor and calculate the detection distance based on them. The photoelectric sensor assembly has specific coded information built into it, which is reflected in the photoelectric signal. The processing module first decodes these signals, extracts the coded information, and then uses this information to identify the specific installation location of the photoelectric sensor assembly. Once the location of the photoelectric sensor assembly is determined, the processing module can determine the detection distance.

[0086] In some embodiments of the present application, the verification module is used to determine whether the pile foundation ultrasonic detector meets the technical standards based on the ultrasonic wave velocity and the theoretical wave velocity, including: determining the preset standard temperature of the verification standard water tank 1, determining the corresponding theoretical wave velocity based on the preset standard temperature, and determining the error value between the ultrasonic wave velocity and the theoretical wave velocity; if the error value is less than or equal to the preset error value, it is determined that the pile foundation ultrasonic detector meets the technical standards; if the error value is greater than the preset error value, it is determined that the pile foundation ultrasonic detector does not meet the technical standards; wherein the preset error value is 1%.

[0087] The function of the verification module is to determine whether the foundation pile ultrasonic detector meets specific technical standards by comparing the actual propagation speed of ultrasound in water (ultrasonic wave speed) with the theoretical standard speed (theoretical wave speed). The specific operation steps are as follows:

[0088] First, based on this preset standard temperature, the verification module will look up or calculate the corresponding theoretical wave velocity. The theoretical wave velocity is the standard propagation speed of ultrasound in water at this temperature. This speed is known and is usually given by a physical formula or a standard data table. Then, the verification module will measure the actual ultrasonic wave velocity, that is, the propagation speed of ultrasound under the current water temperature conditions. By comparing the actually measured ultrasonic wave velocity with the theoretical wave velocity, the verification module calculates the error value between the two. If the calculated error value is less than or equal to the preset error threshold (for example, 1%), the verification module will determine that the foundation pile ultrasonic detector meets the technical standards. If the error value is greater than the preset error threshold, the verification module will determine that the foundation pile ultrasonic detector does not meet the technical standards. The preset error value is the maximum allowable error range, which is set according to industry standards or manufacturer regulations to ensure the accuracy and reliability of the detection equipment.

[0089] In some embodiments of the present application, the error value is determined according to the following formula:

[0090]

[0091] Where E represents the error value.

[0092] like Figure 3 As shown, the present invention also discloses a verification method for a pile foundation ultrasonic detector, which is applied to the above-mentioned verification system for a pile foundation ultrasonic detector, comprising:

[0093] Acquire the detection sound of the pile foundation ultrasonic detector and the photoelectric signal corresponding to the detection sound;

[0094] Determine the ultrasonic wave velocity based on the detected sound time and photoelectric signals;

[0095] Determine whether the ultrasonic pile detector meets the technical standards based on the ultrasonic wave velocity and the theoretical wave velocity.

[0096] The verification method of the present invention comprises: first, obtaining the detection sound-time data and the corresponding photoelectric signal data recorded by the ultrasonic detector of the pile foundation during the detection. These data are usually automatically recorded and stored by the detector during the detection process. Secondly, the actual propagation speed of the ultrasonic wave in the pile foundation material, that is, the ultrasonic wave speed, is determined by using the acquired detection sound-time data and photoelectric signal data. This step usually involves analyzing the photoelectric signal to determine the emission and reception time points of the ultrasonic signal, and then calculating the wave speed. Finally, the calculated ultrasonic wave speed is compared with the pre-set theoretical wave speed. The theoretical wave speed is determined based on the known physical properties of the pile foundation material and the theoretical propagation speed of the ultrasonic wave in the material. By comparing the actual wave speed with the theoretical wave speed, it can be judged whether the ultrasonic detector of the pile foundation meets the established technical standards and accuracy requirements. If the deviation between the actual wave speed and the theoretical wave speed is within the allowable error range, the detector is considered to be accurate and reliable; if the deviation exceeds the allowable range, it indicates that the detector may have a fault or need to be calibrated. Through the above verification method, the accuracy and reliability of the detection results of the ultrasonic detector of the pile foundation can be ensured, thereby providing a scientific basis for the quality assessment of the pile foundation.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

[0098] The system provided in the above embodiment is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the modules or steps in the embodiments of the present invention can be decomposed or combined. For example, the modules in the above embodiment can be combined into one module, or further divided into multiple sub-modules to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only for distinguishing the modules or steps, and are not regarded as improper limitations of the present invention.

[0099] Those skilled in the art should be able to appreciate that the modules and method steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, computer software or a combination of the two, and the programs corresponding to the software modules and method steps can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically erasable programmable ROM, registers, hard disks, removable disks, CD-ROMs or any other form of storage medium known in the technical field. In order to clearly illustrate the interchangeability of electronic hardware and software, the composition and steps of each example have been generally described in the above description according to the function. Whether these functions are performed in electronic hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

Claims

1. A verification system for a pile ultrasonic detector, characterized in that: The system comprises: Check standard sinks; A fixing module connected to the verification standard water tank, wherein the fixing module is used to install the foundation pile ultrasonic detector in the verification standard water tank; A temperature control module is connected to the verification standard water tank, and the temperature control module is used to perform constant temperature control on the water temperature in the verification standard water tank; A verification module connected to the pile foundation ultrasonic detector, the verification module is used to verify whether the pile foundation ultrasonic detector meets the technical standards; Wherein, the foundation pile ultrasonic detector includes a transmitting probe and a receiving probe.

2. The verification system for the ultrasonic pile detector according to claim 1, characterized in that: The fixing module comprises a guide rail, a fixing block, a sliding block, a transmitting probe fixture and a receiving probe fixture; The guide rail is installed on the top of the verification standard water tank, the fixed block is fixedly installed on one end of the guide rail, and the sliding block is slidably installed on the other end of the guide rail; The transmitting probe fixture is arranged on the fixed block, and is used to clamp the transmitting probe. The receiving probe fixture is arranged on the sliding block, and is used to clamp the receiving probe.

3. The verification system for the ultrasonic pile detector according to claim 2, characterized in that: A plurality of photoelectric components are arranged on the guide rail, and the distances between the photoelectric components and the fixed block are 400mm, 500mm, 600mm, 700mm and 800mm; When the sliding block passes through the photoelectric component, the photoelectric component sends out a photoelectric signal.

4. The verification system for the ultrasonic pile detector according to claim 3, characterized in that: The temperature control module includes a heater, a water pump, a controller and a temperature sensor; The temperature sensor is installed in the verification standard water tank, and the temperature sensor is used to detect the real-time water temperature in the verification standard water tank; The water pump inlet is connected to the verification standard water tank outlet, the water pump outlet is connected to the heater inlet, the heater outlet is connected to the verification standard water tank inlet, the controller is connected to the heater, the water pump and the temperature sensor, the controller is used to receive the real-time water temperature detected by the temperature sensor, and determine the temperature difference between the real-time water temperature and the preset standard temperature, and control the operating status of the heater and the water pump according to the temperature difference.

5. The verification system for the ultrasonic pile detector according to claim 4, characterized in that: The verification module includes an acquisition unit, a processing unit and a verification unit; The acquisition unit is connected to the transmitting probe, the receiving probe and the photoelectric component, and is used to acquire the detection sound of the pile ultrasonic detector and the photoelectric signal corresponding to the detection sound; The processing module is used to determine the ultrasonic wave velocity according to the detected acoustic time and photoelectric signal; The verification module is used to determine whether the ultrasonic wave velocity of the pile foundation detector meets the technical standards based on the ultrasonic wave velocity and the theoretical wave velocity.

6. The verification system for the ultrasonic pile detector according to claim 5, characterized in that: The processing module is used to determine the ultrasonic wave velocity according to the detected acoustic time and photoelectric signal, including: determining a detection distance according to the photoelectric signal; Draw a distance measurement-sound time curve based on the detection distance and the detection sound time, determine the intercept of the distance measurement-sound time curve and the sound time value axis by linear regression, and set the intercept as t0; Determine the detection wave velocity corresponding to each detection distance according to the detection sound time and intercept, and set the average value of the detection wave velocity as the ultrasonic wave velocity; The detection wave velocity is determined according to the following formula: Among them, Vi represents the detection wave velocity corresponding to the i-th detection distance, di represents the i-th detection distance, ti represents the detection sound time corresponding to the i-th detection distance, and t0 represents the intercept.

7. The verification system for the ultrasonic pile detector according to claim 6, characterized in that: The processing module is used to determine the detection distance according to the photoelectric signal, including: The photoelectric component is provided with a code, and the photoelectric signal contains the code information; The installation position of the optoelectronic component is determined according to the coding information, and the detection distance is determined based on the installation position of the optoelectronic component.

8. The verification system for the ultrasonic pile detector according to claim 7, characterized in that: The verification module is used to determine whether the ultrasonic detector for pile foundation meets the technical standards according to the ultrasonic wave velocity and the theoretical wave velocity, and includes: Determine a preset standard temperature of a standard water tank for verification, determine a corresponding theoretical wave velocity according to the preset standard temperature, and determine an error value between the ultrasonic wave velocity and the theoretical wave velocity; If the error value is less than or equal to the preset error value, it is determined that the foundation pile ultrasonic detector meets the technical standards; If the error value is greater than the preset error value, it is determined that the foundation pile ultrasonic detector does not meet the technical standards; Wherein, the preset error value is 1%.

9. The verification system for the ultrasonic pile detector according to claim 8, characterized in that: The error value is determined according to the following formula: Where E represents the error value.

10. A verification method for a pile foundation ultrasonic detector, applied to a verification system for a pile foundation ultrasonic detector as claimed in any one of claims 1 to 9, characterized in that: The method comprises: Acquire the detection sound of the pile foundation ultrasonic detector and the photoelectric signal corresponding to the detection sound; Determine the ultrasonic wave velocity according to the detected acoustic timing and photoelectric signal; Determine whether the ultrasonic wave velocity and the theoretical wave velocity of the pile foundation ultrasonic detector meet the technical standards.

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