CN112540123A - Ultrasonic probe measuring device and method - Google Patents
Ultrasonic probe measuring device and method Download PDFInfo
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- CN112540123A CN112540123A CN201910894575.5A CN201910894575A CN112540123A CN 112540123 A CN112540123 A CN 112540123A CN 201910894575 A CN201910894575 A CN 201910894575A CN 112540123 A CN112540123 A CN 112540123A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention provides an ultrasonic probe measuring device which comprises a support frame, wherein a display screen is arranged on the support frame; the ultrasonic transmission device comprises a support frame, a transmission probe mounting mechanism, an adjusting mechanism and a control mechanism, wherein the transmission probe mounting mechanism is arranged at the upper part of the support frame and used for mounting an ultrasonic transmission probe; the receiving probe mounting mechanism is arranged at the lower part of the support frame, an ultrasonic receiving probe is mounted on the receiving probe mounting mechanism, and the ultrasonic transmitting probe and the ultrasonic receiving probe are oppositely arranged; the ultrasonic receiving probe receives the ultrasonic waves transmitted by the ultrasonic transmitting probe and displays the ultrasonic measurement result on the display screen. The invention can quickly and accurately measure the acoustic velocity of the rock debris and the rock core, so that the acoustic measurement of the rock debris can be used for the mechanical evaluation of stratum rock in a drilling site.
Description
Technical Field
The invention relates to an ultrasonic probe measuring device, and belongs to the field of rock mechanics measuring tools and methods.
Background
The rock mechanics parameters are basic data of various operations such as borehole stability analysis, hydraulic fracturing design, drill bit model selection and drilling parameter optimization, oil well sand production analysis, oil layer physical property parameter stress correction and the like. The sound wave is an important parameter for rock mechanics parameter calculation and formation pressure evaluation, and is a valuable data for oil and gas exploration, well drilling engineering and reservoir transformation. However, the acoustic measurement of special rock samples such as rock debris and mudstone has a large error because the rock sample is very thin or soft and cannot be pressed by force during the acoustic measurement, otherwise the rock sample is fragile.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the ultrasonic probe measuring device which can quickly and accurately measure the sound wave speed of rock debris and a rock core, solves the problems that ultra-thin and ultra-soft media such as rock debris are fragile and inaccurate in measurement in the sound wave measuring process, enables the rock debris sound wave measurement to be used for stratum rock mechanics evaluation in a drilling site, and can provide a decision for drilling construction.
In order to achieve the above object, the present invention provides an ultrasonic probe measurement apparatus including:
a support frame;
the ultrasonic wave transmitting device comprises a transmitting probe mounting mechanism, a supporting frame and a transmitting probe mounting mechanism, wherein the transmitting probe mounting mechanism is arranged at the upper part of the supporting frame, and an ultrasonic wave transmitting probe is mounted on the transmitting probe mounting mechanism;
the receiving probe mounting mechanism is arranged at the lower part of the support frame, the receiving probe mounting mechanism is provided with an ultrasonic receiving probe opposite to the ultrasonic transmitting probe in position, and a rock sample is placed at the upper part of the ultrasonic receiving probe during measurement; and
the adjusting mechanism is arranged on the support frame and drives the transmitting probe mounting mechanism to move in the vertical direction, the adjusting mechanism comprises a coarse adjusting rotary cylinder arranged on a horizontal beam of the support beam, and a fine adjusting rotary rod is arranged above the coarse adjusting rotary cylinder;
the transmitting probe mounting mechanism moves for a larger distance in the vertical direction by rotating the coarse adjustment rotary cylinder for a circle; and rotating the fine adjustment rotating rod for a circle, and moving the transmitting probe mounting mechanism for a smaller distance in the vertical direction.
The invention has the further improvement that the adjusting mechanism also comprises a distance measuring rod connected with the transmitting probe mounting mechanism, and when the coarse adjustment rotating cylinder and the fine adjustment rotating rod rotate, the distance measuring rod stretches and retracts in the vertical direction so as to drive the transmitting probe mounting mechanism to move up and down;
wherein, a force measuring device is arranged on the fine adjustment rotating rod; and rotating the fine adjustment rotating rod to enable the ultrasonic transmitting probe to contact the rock sample and apply pressure, and when the pressure reaches a set maximum value, continuing to rotate the fine adjustment rotating rod, so that the ultrasonic probe cannot move downwards.
The invention has the further improvement that the supporting frame comprises a supporting base, and a supporting beam is arranged on the supporting base; the supporting beam comprises a vertical beam body vertically connected to a supporting base and a horizontal beam body arranged on the vertical beam body;
wherein, the emission probe installation mechanism is arranged on the horizontal beam body.
The invention has the further improvement that a display screen is arranged on the support frame; the ultrasonic receiving probe receives the ultrasonic waves transmitted by the ultrasonic transmitting probe and displays the ultrasonic measurement result on the display screen.
The invention has the further improvement that the transmitting probe mounting mechanism comprises a transmitting probe bracket horizontally connected to the distance measuring rod, one end of the transmitting probe bracket is provided with a first mounting cylinder, and the ultrasonic transmitting probe is detachably connected in the first mounting cylinder.
The invention is further improved in that the receiving probe mounting mechanism comprises a receiving probe bracket arranged on the side surface of the supporting seat, a second mounting cylinder is arranged at one end of the receiving probe bracket, and the ultrasonic receiving probe is detachably connected in the second mounting cylinder.
The invention is further improved in that a first lead slot is arranged on the side surface of the first mounting cylinder, and a connecting wire of the ultrasonic transmitting probe extends out of the first mounting cylinder through the first lead slot;
and a second lead slot is formed in the side surface of the second mounting cylinder, and a connecting wire of the ultrasonic receiving probe extends out of the second mounting cylinder through the second lead slot.
The invention has the further improvement that a first pin hole is arranged on the side surface of the first mounting cylinder, and a first bolt for supporting the ultrasonic emission probe is arranged in the first pin hole;
and a second pin hole is formed in the side surface of the second mounting cylinder, and a second bolt for supporting the ultrasonic receiving probe is arranged in the second pin hole.
Another aspect of the invention also provides a method of measuring a rock sample, comprising:
firstly, adjusting the vertical position of an ultrasonic transmitting probe through an adjusting mechanism to enable the ultrasonic transmitting probe to be directly butted with an ultrasonic receiving probe, and coating a couplant on the contact surface; measuring the distance delta L between the ultrasonic transmitting probe and the ultrasonic receiving probe, wherein the ultrasonic time difference is delta T;
then, adjusting the vertical position of the ultrasonic transmitting probe through an adjusting mechanism, placing a rock sample between the ultrasonic transmitting probe and the ultrasonic receiving probe, and simultaneously coating a coupling agent between the rock sample and the ultrasonic transmitting probe and the ultrasonic receiving probe; measuring the distance L between the ultrasonic transmitting probe and the ultrasonic receiving probe, wherein the ultrasonic time difference is T;
and calculating the acoustic velocity V of the rock sample as (L-delta L)/(T-delta T).
The invention is further improved in that when the adjusting mechanism is adjusted, the coarse adjusting rotary cylinder is firstly rotated to enable the ultrasonic transmitting probe to move rapidly, and when the target position is approached, the fine adjusting rotary rod is rotated to enable the ultrasonic transmitting probe to move slowly until the target is contacted.
The invention is further improved in that the coupling agent is honey.
Compared with the prior art, the invention has the advantages that:
the ultrasonic probe measuring device can quickly and accurately measure the acoustic velocity of rock debris and rock cores, solves the problems that ultra-thin and ultra-soft media such as rock debris are fragile and inaccurate to measure in the acoustic measurement process, enables the rock debris acoustic measurement to be used for stratum rock mechanics evaluation in a drilling site, and can provide a decision for drilling construction. The method can accurately calculate the acoustic velocity of the rock sample according to the actual rock sample length and the actual acoustic time difference. The measuring device and the method have good sound wave measuring effect on ultra-thin rock samples and fragile rock samples, are suitable for sound wave measurement of special rock samples such as rock debris and mudstone, are small in size and light in weight, and are suitable for formation pressure monitoring while drilling in drilling and logging sites.
Drawings
Preferred embodiments of the present invention will be described in detail below with reference to the attached drawing figures, wherein:
fig. 1 is a schematic structural view of an ultrasonic probe measurement apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a mounting base of a transmitting probe according to an embodiment of the present invention;
FIG. 3 is a schematic view of a receiving probe mount according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a first mounting cylinder according to an embodiment of the present invention;
FIG. 5 is a schematic view of an ultrasonic probe measuring device according to an embodiment of the present invention; displaying the state of the sound wave during zero-delay measurement;
FIG. 6 is a schematic view of an ultrasonic probe measuring device according to an embodiment of the present invention; the state of the rock sample during ultrasonic measurement is shown.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
The meaning of the reference symbols in the drawings is as follows: 1. the device comprises a support frame, 2, a transmitting probe mounting mechanism, 3, a receiving probe mounting mechanism, 4, a rock sample, 11, a support base, 12, a support beam, 13, a display screen, 21, a coarse adjustment rotating cylinder, 22, a fine adjustment rotating rod, 23, a distance measuring rod, 24, a transmitting probe support, 25, a first mounting cylinder, 26, an ultrasonic transmitting probe, 27, a first lead slot, 28, a first bolt, 31, a receiving probe support, 32, a second mounting cylinder, 33, an ultrasonic receiving probe, 34, a second lead slot, 35, a second bolt, 41 and a coupling agent.
Detailed Description
In order to make the technical solutions and advantages of the present invention more apparent, exemplary embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is clear that the described embodiments are only a part of the embodiments of the invention, and not an exhaustive list of all embodiments. And the embodiments and features of the embodiments may be combined with each other without conflict.
Fig. 1 schematically shows an ultrasonic probe measurement apparatus according to an embodiment of the present invention. According to the ultrasonic probe measuring device, the sound wave speed of rock debris and a rock core can be measured quickly and accurately, the problems that ultra-thin and ultra-soft media such as rock debris are fragile and inaccurate to measure in the sound wave measuring process are solved, the sound wave measurement of the rock debris can be used for mechanical evaluation of stratum rocks in a drilling site, and a decision can be provided for drilling construction.
Fig. 1 schematically shows an ultrasonic probe measurement apparatus according to an embodiment of the present invention, including a support frame 1, where the support frame 1 is used for supporting other devices. The ultrasonic probe measuring device of the present embodiment further includes a transmission probe mounting mechanism 2, the transmission probe mounting mechanism 2 is used for mounting the ultrasonic transmission probe 26, and the transmission probe mounting mechanism 2 is disposed on the upper portion of the support frame 1. The ultrasonic probe measuring device of the present embodiment further includes a receiving probe mounting mechanism 3, and an ultrasonic receiving probe 33 capable of receiving ultrasonic waves is mounted on the receiving probe mounting mechanism 3. The ultrasonic transmitting probe 26 and the ultrasonic receiving probe 33 are arranged opposite to each other, and the ultrasonic transmitting probe 26 and the ultrasonic receiving probe 33 are coaxially arranged. In this embodiment, an adjusting mechanism is disposed between the transmission probe mounting mechanism 2 and the bracket, and the adjusting mechanism can drive the ultrasonic transmission probe 26 to move in the vertical direction.
The adjusting mechanism comprises a coarse adjusting rotary cylinder 21 and a fine adjusting rotary rod 22, the coarse adjusting rotary cylinder 21 is connected to the support frame 1, and the fine adjusting rotary rod 22 is arranged on the upper portion of the coarse adjusting rotary cylinder 21. Wherein, rotating the coarse adjustment rotary cylinder 21 for a circle, the transmission probe mounting mechanism 2 moves a larger distance in the vertical direction; by rotating the fine adjustment rotating rod 22 for one circle, the transmission probe mounting mechanism 2 moves a small distance in the vertical direction.
In the ultrasonic probe measuring apparatus according to the present embodiment, the adjustment mechanism can adjust the horizontal position of the ultrasonic transmission probe 26 to move it up and down, thereby matching different sizes of rock samples 4. The ultrasonic wave transmitting device transmits ultrasonic waves to the ultrasonic receiving device after passing through the rock sample 4, and the ultrasonic receiving device can judge corresponding parameters of the rock sample 4 through the received ultrasonic signals. The propagation speed of the ultrasonic wave in the rock sample 4 can be measured according to the transmission time of the ultrasonic wave and the thickness of the rock sample 4, parameters such as Poisson's ratio, Young modulus and the like of the stratum can be obtained by measuring the longitudinal wave speed and the transverse wave speed of the rock debris, and further the pressure of the stratum while drilling can be obtained.
In one embodiment, the adjusting mechanism further includes a distance measuring rod 23 connected to the transmission probe mounting mechanism 2, and when the coarse adjustment rotary cylinder 21 and the fine adjustment rotary rod 22 rotate, the distance measuring rod 23 extends and retracts in the vertical direction to drive the transmission probe mounting mechanism 2 to move up and down. The fine adjustment rotating rod 22 is provided with a force measuring device which can measure the thrust force applied to the distance measuring rod 23 during rotation, after the rock sample 4 is installed on the ultrasonic receiving probe 33, the coarse adjustment rotating cylinder 21 is used for adjusting to enable the ultrasonic transmitting probe 26 to move to be close to the rock sample 4, the fine adjustment rotating rod 22 is used for adjusting to enable the ultrasonic transmitting probe 26 to contact and press the rock sample 4, and the reaction force of the rock sample 4 is transmitted to the force measuring device and is measured through the measuring device. The distance measuring bar 23 can measure the extended length by marking a scale on the distance measuring bar 23 or by providing a displacement sensor on the horizontal beam body.
In this embodiment, when the coarse adjustment rotary cylinder 21 is rotated for one turn, the distance measuring rod 23 moves a large distance in the vertical direction; rotating the fine adjustment rotating rod 22 for one circle, and moving the distance measuring rod 23 in the vertical direction by a small distance; and, a force measuring device is provided on the fine rotation lever 22. Preferably, the distance measuring bar 23 moves down by 0.1mm when the fine rotation lever 22 rotates clockwise by one turn, and the distance measuring bar 23 moves up by 0.1mm when the fine rotation lever 22 rotates counterclockwise by one turn. When the coarse rotary cylinder 21 rotates, the distance measuring rod 23 moves rapidly, thereby also moving the ultrasonic transmission probe 26 synchronously. When the coarse adjustment rotary cylinder 21 rotates clockwise one turn, the distance measuring rod 23 moves down by 1mm, and when the coarse adjustment rotary cylinder 21 rotates counterclockwise one turn, the distance measuring rod 23 moves up by 1 mm. When the ultrasonic transmission probe 26 is moved to contact the rock sample 4 to be measured, a certain pressure is applied to the rock sample 4 by continuing to rotate the fine adjustment rotating rod 22, the pressure is fixed, and the distance measuring rod 23 does not move downward when continuing to rotate.
In one embodiment, the support frame 1 comprises a support base 11, and a support beam 12 is disposed on the support base 11. The support beam 12 includes a vertical beam body vertically connected to the support base 11, and a horizontal beam body provided on the vertical beam body. The horizontal beam is horizontally arranged at the upper end of the vertical beam body. Wherein, the emission probe installation mechanism 2 is arranged on the horizontal beam body. In this embodiment, the supporting base 11 is a rectangular parallelepiped, a cylinder or other structures, and is used for bearing the weight of other components and supporting the other components. The horizontal beam body at the upper end of the support beam 12 is extended to one side so that the transmission probe mounting mechanism 2 and the reception probe mounting mechanism 3 are aligned.
In a preferred embodiment, the coarse rotation cylinder 21 is rotatably disposed on the support beam 12 and passes through the horizontal beam body. The coarse rotation cylinder 21 can rotate on the horizontal beam body. And a distance measuring rod 23 is arranged below the coarse tuning rotary cylinder 21, and the distance measuring rod 23 is positioned below the horizontal beam body and is connected with the receiving probe mounting mechanism 3. The coarse rotation cylinder 21 rotates to move the distance measuring bar 23 in the vertical direction. The upper end of the coarse adjustment rotary cylinder 21 is provided with a fine adjustment rotary rod 22, the fine adjustment rotary rod 22 is matched with the inside of the coarse adjustment rotary cylinder 21 through teeth and the like, and when the fine adjustment rotary rod 22 rotates, the coarse adjustment rotary cylinder 21 rotates slowly, so that the distance measuring rod 23 is driven to move slowly. In the present embodiment, the coarse adjustment rotary cylinder 21, the fine adjustment rotary rod 22, and the distance measuring rod 23 are coaxially disposed.
In one embodiment, the transmission probe mounting mechanism 2 comprises a transmission probe bracket 24, one end of the transmission probe bracket 24 is connected to the distance measuring rod 23, and the other end is provided with a first mounting cylinder 25. The first mounting cylinder 25 has a cylindrical structure, and an ultrasonic transmission probe 26 is detachably mounted inside the first mounting cylinder.
In the ultrasonic probe measuring device according to the present embodiment, the transmission probe holder 24 is horizontally disposed and connects the first mounting cylinder 25 and the distance measuring bar 23. The transmission probe holder 24 can be horizontally led out from the distance measuring bar 23 by a distance, which facilitates the installation of the ultrasonic transmission probe 26 and at the same time enables the ultrasonic transmission probe 26 to be aligned with the ultrasonic reception probe 33.
In one embodiment, the receiving probe mounting mechanism 3 comprises a receiving probe holder 31. One end of the receiving probe bracket 31 is provided with a second mounting cylinder 32, and the other end is fixed on the support base 11. The second mounting tube 32 has a cylindrical or rectangular tubular configuration. The ultrasonic receiving probe 33 is detachably connected in the second mounting cylinder 32. In the present embodiment, the upper and lower surfaces of the supporting base 11 and the second mounting cylinder 32 are flush with each other.
In a preferred embodiment, the side surface of the first mounting cylinder 25 is provided with a first lead groove 27 hole, and the first lead groove 27 hole is preferably in a strip-shaped slit structure, extends to the upper end edge or the lower end edge of the first mounting cylinder 25, and can also penetrate through the upper edge and the lower edge of the side surface of the first mounting cylinder 25. The connecting wires (such as power wires or communication wires) of the ultrasonic transmitting probe 26 extend out of the first mounting cylinder 25 through the first lead slot 27. The side surface in the second dark rotary cylinder is provided with a second lead groove 34, and the structure of the second lead groove 34 on the second mounting cylinder 32 is the same as that of the first lead groove 27 on the first mounting cylinder 25. The connecting wire of the ultrasonic receiving probe 33 extends out of the second mounting cylinder through the second lead groove 34.
In a preferred embodiment, a first pin hole is formed in a side surface of the first mounting cylinder 25, and a first plug 28 supporting the ultrasonic transmission probe 26 is disposed in the first pin hole. A second pin hole is formed in the side surface of the second mounting cylinder 32, and a second pin for supporting the ultrasonic receiving probe 33 is arranged in the second pin hole. The first and second pin holes may be replaced with screw holes, and correspondingly, the first and second pins 28 and 28 may be replaced with bolts.
When the ultrasonic probe measuring device according to the present embodiment is used, the first pin 28 protrudes into the first mounting cylinder 25 through the first pin hole, and the end portion thereof presses the side surface of the ultrasonic transmission probe 26 so as to be attached to the inner wall of the first mounting cylinder 25 and be capable of supporting and pressing each other.
According to another aspect of the invention, a method of measuring a rock sample 4 is also proposed, which is implemented by the above embodiment. The method comprises the following steps.
Firstly, carrying out sound wave zero-delay measurement. Adjusting the vertical position of the ultrasonic transmitting probe 26 through an adjusting mechanism to enable the ultrasonic transmitting probe 26 to be directly butted with the ultrasonic receiving probe 33, and coating a couplant on the contact surface; and measures a distance Δ L between the ultrasonic transmission probe 26 and the ultrasonic reception probe 33, the ultrasonic time difference being Δ T.
And step two, performing ultrasonic measurement on the rock sample 4. Adjusting the vertical position of the ultrasonic transmitting probe 26 through an adjusting mechanism, placing the rock sample 4 between the ultrasonic transmitting probe 26 and the ultrasonic receiving probe 33, and simultaneously coating a coupling agent between the rock sample 4 and the ultrasonic transmitting probe 26 and the ultrasonic receiving probe 33; and measuring the distance L between the ultrasonic transmitting probe 26 and the ultrasonic receiving probe 33, wherein the ultrasonic time difference is T;
and step three, calculating the sound wave velocity of the rock sample 4 according to the formula V ═ L-DeltaL)/(T-DeltaT). Parameters such as Poisson's ratio and Young's modulus of the rock sample 4 can be accurately calculated through the calculated ultrasonic velocity in the rock sample 4, and further data such as formation pressure while drilling can be calculated.
In a preferred embodiment, when adjusting the adjusting mechanism, the coarse adjustment rotary cylinder 21 is first rotated to move the ultrasonic transmission probe 26 rapidly, and when approaching the target position (e.g. the ultrasonic transmission probe 26 is adjusted to a position about 1mm away from the ultrasonic reception probe 33 during the zero-delay measurement of the acoustic wave, or the ultrasonic transmission probe 26 is adjusted to a position about 1mm away from the rock sample 4 during the ultrasonic measurement of the rock sample 4), the ultrasonic transmission probe 26 is slowly moved by rotating the fine adjustment rotary rod 22 until contacting the target (the ultrasonic reception probe 33 or the rock sample 4) and applying a certain pressure. In a preferred embodiment, the coupling agent is honey.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, the appended claims are intended to be construed to include preferred embodiments and all such changes and/or modifications as fall within the scope of the invention, and all such changes and/or modifications as are made to the embodiments of the present invention are intended to be covered by the scope of the invention.
Claims (10)
1. An ultrasonic probe measurement apparatus, comprising:
a support frame (1);
the transmission probe mounting mechanism (2) is arranged at the upper part of the support frame (1), and an ultrasonic transmission probe (26) is mounted on the transmission probe mounting mechanism (2);
the receiving probe mounting mechanism (3) is arranged at the lower part of the support frame (1), the receiving probe mounting mechanism (3) is provided with an ultrasonic receiving probe (33) opposite to the position of the ultrasonic transmitting probe (26), and a rock sample (4) is placed at the upper part of the ultrasonic receiving probe (33) during measurement; and
the adjusting mechanism is arranged on the support frame (1) and drives the transmitting probe mounting mechanism (2) to move in the vertical direction, the adjusting mechanism comprises a coarse adjusting rotary cylinder (21) arranged on a horizontal beam of the supporting beam (12), and a fine adjusting rotary rod (22) is arranged above the coarse adjusting rotary cylinder (21);
wherein, the transmitting probe mounting mechanism (2) moves a larger distance in the vertical direction by rotating the coarse adjustment rotary cylinder (21) for a circle; and rotating the fine adjustment rotating rod (22) for a circle, and moving the transmitting probe installation mechanism (2) for a smaller distance in the vertical direction.
2. The ultrasonic probe measuring device according to claim 1, wherein the adjusting mechanism further comprises a distance measuring rod (23) connected to the transmitting probe mounting mechanism (2), and when the coarse adjustment rotary cylinder (21) and the fine adjustment rotary rod (22) rotate, the distance measuring rod (23) extends and retracts in the vertical direction so as to drive the transmitting probe mounting mechanism (2) to move up and down;
wherein a force measuring device is arranged on the fine adjustment rotating rod (22); and rotating the fine adjustment rotating rod (22) to enable the ultrasonic emission probe (26) to contact the rock sample (4) and apply pressure, and when the pressure reaches a set maximum value, continuing to rotate the fine adjustment rotating rod (22), wherein the ultrasonic probe cannot move downwards.
3. The ultrasonic probe measuring device according to claim 2, wherein the support frame (1) comprises a support base (11), a support beam (12) is arranged on the support base (11); the supporting beam (12) comprises a vertical beam body vertically connected to the supporting base (11) and a horizontal beam body arranged on the vertical beam body;
wherein, the emission probe installation mechanism (2) is arranged on the horizontal beam body.
4. An ultrasonic probe measuring device according to claim 3, characterized in that a display screen (13) is arranged on the support frame (1); the ultrasonic receiving probe (33) receives the ultrasonic waves transmitted by the ultrasonic transmitting probe (26) and displays the ultrasonic measurement result on the display screen (13).
5. The ultrasonic probe measuring device according to claim 4, wherein the transmitting probe mounting mechanism (2) comprises a transmitting probe bracket (24) horizontally connected to the distance measuring bar (23), a first mounting cylinder (25) is arranged at one end of the transmitting probe bracket (24), and the ultrasonic transmitting probe (26) is detachably connected in the first mounting cylinder (25).
6. The ultrasonic probe measuring device according to any one of claims 1 to 5, wherein the receiving probe mounting mechanism (3) includes a receiving probe holder (31) provided at a side surface of the support base, one end of the receiving probe holder (31) is provided with a second mounting cylinder (32), and the ultrasonic receiving probe (33) is detachably attached in the second mounting cylinder (32).
7. The ultrasonic probe measuring device according to claim 6, wherein a first lead groove (27) hole is provided in a side surface of the first mounting cylinder (25), and a connection line of the ultrasonic transmission probe (26) is extended to the outside of the first mounting cylinder (25) through the first lead groove (27) hole;
the side of the second installation cylinder is provided with a second lead groove (34) hole, and the connecting wire of the ultrasonic receiving probe (33) extends out of the second installation cylinder through the second lead groove (34) hole.
8. The ultrasonic probe measuring device according to claim 7, wherein a first pin hole is provided in a side surface of the first mounting cylinder (25), and a first pin (28) supporting the ultrasonic transmission probe (26) is provided in the first pin hole;
and a second pin hole is formed in the side surface of the second mounting cylinder (32), and a second bolt for supporting the ultrasonic receiving probe (33) is arranged in the second pin hole.
9. A method of measuring a rock sample using an ultrasonic probe measuring device according to any one of claims 1 to 8, comprising:
firstly, adjusting the vertical position of an ultrasonic transmitting probe (26) through an adjusting mechanism to enable the ultrasonic transmitting probe (26) to be directly butted with an ultrasonic receiving probe (33), and coating a couplant on the contact surface; and measuring the distance DeltaL between the ultrasonic transmitting probe (26) and the ultrasonic receiving probe (33), wherein the ultrasonic time difference is DeltaT;
then, adjusting the vertical position of the ultrasonic transmitting probe (26) through an adjusting mechanism, placing the rock sample (4) between the ultrasonic transmitting probe (26) and the ultrasonic receiving probe (33), and simultaneously coating a coupling agent between the rock sample (4) and the ultrasonic transmitting probe (26) and the ultrasonic receiving probe (33); and measuring the distance L between the ultrasonic transmitting probe (26) and the ultrasonic receiving probe (33), wherein the ultrasonic time difference is T;
the acoustic velocity V of the rock sample (4) was calculated as (L- Δ L)/(T- Δ T).
10. The ultrasonic probe measuring device according to claim 7, wherein the adjustment mechanism is adjusted by first rotating the coarse adjustment rotary cylinder (21) to move the ultrasonic transmission probe (26) rapidly, and when approaching the target position, by rotating the fine adjustment rotary rod (22), to move the ultrasonic transmission probe (26) slowly until contacting the target.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910894575.5A CN112540123B (en) | 2019-09-20 | 2019-09-20 | Ultrasonic probe measuring device and method |
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| CN201910894575.5A CN112540123B (en) | 2019-09-20 | 2019-09-20 | Ultrasonic probe measuring device and method |
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| CN112540123B CN112540123B (en) | 2023-10-20 |
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| CN112540123B (en) | 2023-10-20 |
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