CN215218680U - Ultrasonic wave appearance calibration equipment - Google Patents
Ultrasonic wave appearance calibration equipment Download PDFInfo
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- CN215218680U CN215218680U CN202121012716.5U CN202121012716U CN215218680U CN 215218680 U CN215218680 U CN 215218680U CN 202121012716 U CN202121012716 U CN 202121012716U CN 215218680 U CN215218680 U CN 215218680U
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Abstract
The utility model discloses an ultrasonic wave appearance calibration equipment belongs to nonmetal ultrasonic detection field, and it is including mounting, slide caliper and the connecting rod that is used for fixed ultrasonic wave appearance probe, slide caliper includes main scale and vernier scale, two probes pass through mounting and connecting rod to be fixed respectively on main scale and vernier scale, and the radiation surface of two probes is relative, removes the vernier scale, reads the distance between two probes, obtains relative sound duration value, calculates at last and obtains the calibration result. The utility model discloses simple structure, convenient operation combines slide caliper and ultrasonic wave appearance to use, through the relative movement of vernier, realizes the calibration to the ultrasonic wave appearance, and the calibration result precision that obtains is high, effectively improves the accuracy of ultrasonic wave appearance calibration result.
Description
Technical Field
The utility model belongs to nonmetal ultrasonic detection field, in particular to ultrasonic wave appearance calibration equipment.
Background
The nonmetal ultrasonic detector is a commonly used defect detection device and is commonly used for detecting defects such as internal cavities and cracks of structures such as concrete. In order to ensure the accuracy of the detection result, the ultrasonic detector needs to be calibrated before detection. According to the specification of annex A.2 of technical specification for detecting concrete structure entities of water transportation engineering (JTS 239-2015), the calibration of the ultrasonic instrument is to compare the sound velocity of an actually measured probe in the air with a standard value, so that the accuracy of the ultrasonic instrument is analyzed. The specific operation process is as follows: the centers of the two transducers are opposite, the distance is 25mm, 50mm, 100mm and 150mm …, corresponding sound time values t1, t2, t3 and t4 … are read, a sound time value-distance measurement coordinate graph is drawn, a regression straight line equation is solved, and the straight line slope is the measured value of the air sound speed.
The conventional ultrasonic meter calibration equipment is shown in fig. 1, and is characterized in that a probe 2 is fixed below, another probe is suspended by a probe line, radiation surfaces of the two probes are aligned, a distance between the two probes is adjusted to obtain a corresponding sound time value, and finally an air sound speed measured value is obtained. In above-mentioned equipment, the probe line is flexible, rocks easily after hanging, is difficult to guarantee that the radiating surface of two probes is strict to aim at, influences the reading easily to the scale precision of reading the range finding is 1mm, and the scale is located probe side, does not hug closely the probe, causes measuring error easily, influences the calibration result.
SUMMERY OF THE UTILITY MODEL
For solving the technical defect, the utility model provides an ultrasonic wave calibration equipment, its simple structure, it is easy and simple to handle, use vernier caliper and ultrasonic wave appearance jointly, through the relative movement of vernier, realize the calibration to the ultrasonic wave appearance, reduce measuring error, improve the accuracy of ultrasonic wave appearance calibration result.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an ultrasonic calibration device comprises a vernier caliper, a connecting rod and a fixing piece for fixing two probes of an ultrasonic instrument, wherein the vernier caliper comprises a main ruler and a vernier scale, and the vernier scale is sleeved on the main ruler; the connecting rod comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is fixed on the main scale, and the second connecting rod is fixed on the vernier; the fixing piece comprises a first fixing piece and a second fixing piece, the two probes are respectively connected and fixed with the first connecting rod and the second connecting rod through the first fixing piece and the second fixing piece, the radiation surfaces of the two probes are opposite, and the centers of the two radiation surfaces are on the same straight line.
Compared with the prior art, the utility model discloses obtain following technological effect at least:
the probe of the ultrasonic instrument is fixed with the vernier caliper through the fixing piece and the connecting rod, the original probe which is flexibly connected and moves by depending on the probe line is converted into rigid connection, the problem that the two probes cannot be strictly centered when the ultrasonic instrument is calibrated is solved, and the centers of the radiation surfaces of the two probes are ensured to be aligned; and the distance between the two probes is read by matching the main scale and the vernier, so that the reading is visual, the precision is high, the measurement error can be reduced, and the accuracy of the calibration result of the ultrasonic meter is effectively improved.
Further, the first connecting rod is fixed at the end part of the main scale close to the scale 0.
Further, the second connecting rod is fixed at the end part of the vernier close to the 0 scale. In order to ensure accurate reading, the connecting rod is fixed at the positions of the main scale and the 0 scale of the vernier, so that reading errors are avoided, and the calibration result is not influenced.
Further, the vernier scale is divided by 50 degrees, and the precision of the vernier caliper is 0.02 mm. The sound time value between two probes of the ultrasonic instrument is related to the distance between the two probes, and the more accurate the distance is, the smaller the influence of measurement errors caused by reading is. The cooperation of vernier and master scale is used and can effectively improve the accuracy of reading, and the accuracy of reading is decided to the precision of vernier, and the graduation of vernier is bigger, and the accuracy is higher.
Further, the fixing part is a clamp which comprises a first clamp and a second clamp.
Drawings
FIG. 1 is a schematic structural diagram of a calibration apparatus of a prior art ultrasonic apparatus;
fig. 2 is a schematic structural view of a calibration apparatus of an ultrasonic apparatus of the present invention;
fig. 3 is a state diagram of the movement of the vernier scale in the calibration apparatus of the ultrasonic apparatus of the present invention;
fig. 4 is a schematic diagram of a vernier caliper in a calibration device of an ultrasonic apparatus of the present invention.
Wherein, the reference numbers: 1-ultrasonic instrument; 2-a probe; 3-a caliper; 4-a first clamp; 5-a second clamp; 6-a first link; 7-a second link; 8-main ruler; 9-vernier scale.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the specification, but the described embodiments are only some embodiments of the present invention, not all embodiments, and the scope of the present invention is not limited thereto.
As shown in fig. 2 and fig. 3, the utility model provides a pair of ultrasonic wave appearance calibration equipment, it includes slide caliper, two connecting rods and two mountings, two mountings are fixed on two probes 2 of ultrasonic wave appearance 1, two connecting rods fix two mountings respectively on slide caliper 1, confirm the distance between two probes 2 through slide caliper to obtain corresponding sound duration value in the ultrasonic wave appearance 1, thereby calculate the air sound velocity measured value that obtains this ultrasonic wave appearance 1, accomplish the calibration.
The vernier caliper comprises a main caliper 8 and a vernier scale 9, wherein the vernier scale 9 is sleeved on the main caliper 8; the connecting rods comprise a first connecting rod 6 and a second connecting rod 7, one end of the first connecting rod 6 is fixed at the end part of the main scale 8 close to the scale 0, and one end of the second connecting rod 7 is fixed at the end part of the vernier scale 9 close to the scale 0; in the embodiment, the two fixing members are two clamps, that is, the two fixing members include a first clamp 4 and a second clamp 5, and the two probes 2 of the ultrasonic apparatus 1 are fixed on a first connecting rod 6 and a second connecting rod 7 through the first clamp 4 and the second clamp 5. When the probes 2 are fixedly arranged on the first clamp 4 and the second clamp 5, the radiation surfaces of the two probes 2 are opposite, the centers of the radiation surfaces are in the same straight line, the distance between the two probes 2 reaches the distance required by the test by moving the vernier 9 to the corresponding position, the corresponding sound time value in the ultrasonic instrument 1 at the moment is recorded, and finally, the corresponding calibration result is obtained by calculation.
In this embodiment, the first clamp 4 and the second clamp 5 are fixed in the middle of the two probes 2 of the ultrasonic apparatus 1, so that the centers of the radiation surfaces of the two probes 2 are aligned, and the direct contact between the clamps and the radiation surface at the front edge of the probe 2 is avoided, thereby affecting the measurement result.
In this embodiment, as shown in fig. 4, the vernier scale used is a 50-division vernier scale 9, the accuracy thereof is 0.02mm, and the accurate distance between the two probes 2 is obtained by matching with the master scale 8.
As shown in figure 2, before the device is used, the main scale 8 and the vernier scale 9 are detected, the vernier scale 9 is moved to enable the two probes 2 to be tightly attached, whether the 0 scale lines of the main scale 8 and the vernier scale 9 are aligned or not is checked, if the 0 scale lines are aligned, the measurement can be carried out, and if the 0 scale lines are not aligned, the positions of the two clamps for clamping the probes 2 are adjusted.
According to the scheme, the operation process of the ultrasonic instrument calibration equipment comprises the following steps: firstly, fixing two probes 2 of an ultrasonic instrument 1 through a first clamp 4 and a second clamp 5, moving a vernier 9 to enable the two probes 2 to be tightly attached, checking to ensure that the reading of a main scale 8 and the vernier 9 at the moment is 0mm, then moving the vernier 8 to enable the distance between the two probes 2 to be 25mm, 50mm, 100mm and 150mm …, reading corresponding sound time values t1, t2, t3 and t4 … in the ultrasonic instrument 1, finally drawing a sound time value-distance measurement coordinate graph, solving a regression straight line equation, and calculating a straight line slope, namely an air sound speed actual measurement value.
To sum up, the utility model provides a pair of ultrasonic wave appearance calibration equipment combines ultrasonic wave appearance 1 and slide caliper, fixes the probe on main scale 8 and vernier scale 9 through connecting rod and anchor clamps, makes the center of two probes 2 relative, removes vernier scale 9 to read the distance between two probes 2, main scale 8 and vernier scale 9 cooperate the reading, and reading result precision is high, and testing error is little, improves the accuracy of ultrasonic wave appearance calibration result.
The present invention is not limited to the above embodiment, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology if they do not depart from the spirit and scope of the present invention.
Claims (5)
1. The ultrasonic instrument calibration equipment is characterized by comprising a vernier caliper, a connecting rod and a fixing piece for fixing two probes of an ultrasonic instrument, wherein the vernier caliper comprises a main ruler and a vernier scale, and the vernier scale is sleeved on the main ruler; the connecting rod comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is fixed on the main scale, and the second connecting rod is fixed on the vernier; the fixing piece comprises a first fixing piece and a second fixing piece, the two probes are respectively connected and fixed with the first connecting rod and the second connecting rod through the first fixing piece and the second fixing piece, the radiation surfaces of the two probes are opposite, and the centers of the two radiation surfaces are on the same straight line.
2. The ultrasonic calibration apparatus according to claim 1, wherein the first link is fixed to the end of the main scale near the 0-degree scale.
3. The ultrasonic calibration apparatus according to claim 1, wherein said second link is fixed to the end of said vernier close to the 0 scale.
4. An ultrasonic calibration apparatus according to claim 1 wherein the vernier is 50 graduated with an accuracy of 0.02 mm.
5. The ultrasonic meter calibration apparatus according to claim 1, wherein the fixture is a clamp comprising a first clamp and a second clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121012716.5U CN215218680U (en) | 2021-05-12 | 2021-05-12 | Ultrasonic wave appearance calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121012716.5U CN215218680U (en) | 2021-05-12 | 2021-05-12 | Ultrasonic wave appearance calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215218680U true CN215218680U (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121012716.5U Active CN215218680U (en) | 2021-05-12 | 2021-05-12 | Ultrasonic wave appearance calibration equipment |
Country Status (1)
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|---|---|
| CN (1) | CN215218680U (en) |
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2021
- 2021-05-12 CN CN202121012716.5U patent/CN215218680U/en active Active
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