CN104297351A - Test block and method for measuring refraction angle of ultrasonic angle probe - Google Patents
Test block and method for measuring refraction angle of ultrasonic angle probe Download PDFInfo
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- CN104297351A CN104297351A CN201410594301.1A CN201410594301A CN104297351A CN 104297351 A CN104297351 A CN 104297351A CN 201410594301 A CN201410594301 A CN 201410594301A CN 104297351 A CN104297351 A CN 104297351A
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Abstract
The invention relates to a test block for measuring the point of incidence and refraction angle of an ultrasonic angle probe. The test block is characterized by comprising a quarter of cylinder, wherein the quarter of cylinder comprises a first circular-arc-shaped surface, a bottom surface, a vertical surface, and side surfaces positioned on the front side and the rear side; the bottom surface is perpendicular to the vertical surface; angle scales are engraved on the edges, close to the first circular-arc-shaped surface, of the side surfaces. The ultrasonic test block and the measuring method provided by the invention can be used for measurement of the incidence point and the refraction angle of the cambered-surface angle probe in ultrasonic inspection of the longitudinal seam of a cylinder body, ultrasonic inspection of axial defects of the circumferential seam of the cylinder body, and the ultrasonic inspection of the axial defects of pipelines and bar materials, wherein the measurement is widely adopted at present; according to the ultrasonic reflection characteristic, the special test block is designed for the cambered-surface ultrasonic angle probe, and the test block is simple in shape and convenient to use.
Description
Technical field
the present invention relates to a kind of test block and the measuring method thereof of measuring ultrasound wave angle probe refraction angle.
Background technology
in the prior art, ultrasonic probe incidence point and refraction angle measuring method is loaded down with trivial details and degree of accuracy is not high.As generally adopted water caltrop reflection method for measuring incidence point at present, be placed on the water caltrop of test block by the arc surface of probe voussoir, movable probe, the point that when making water caltrop reflection wave the highest, test block water caltrop place is corresponding is Probe index.The measuring method at refraction angle: first process a solid cylinder test block, the radius-of-curvature of test block is identical with workpiece, processes a cross-drilled hole near test block surface.Then probe is placed in test block, movable probe, finds the highest echo of cross-drilled hole, measures the distance of Probe index to cross-drilled hole, and through the diameter of incidence point, the angle now between the diameter place straight line and incidence point to horizontal empty place straight line of incidence point is refraction angle.Above measuring method needs use surveying instrument and need calculate and table look-up, and which increases measuring error.
Summary of the invention
technical matters to be solved by this invention overcomes the deficiencies in the prior art, provides Special test block and the measuring method of a kind of design and workpiece same curvature, improves the accuracy of ultrasound wave angle probe incidence point, refraction angle measurement, and be convenient to execute-in-place.The invention provides a kind of test block for measuring ultrasound wave angle probe incidence point and refraction angle, it is a quadrant cylinder that described test block comprises, described test block comprises the first arc surface, bottom surface, vertical plane and is positioned at the side of both sides, front and back, described bottom surface and described vertical plane perpendicular, angle index is carved with in described side.
preferably, the radius of the first described arc surface is R, and the curvature of described first arc surface is consistent with the curvature of described detected workpiece.To extend back formation second arc surface at the peak of the first arc surface, the second described arc surface and the first arc surface center of circle, radius are identical, described test block also comprises a three-arc face, the one end in described three-arc face is connected with the second described arc surface, the other end is connected with described vertical plane, and the center of circle in described three-arc face is positioned at the peak of the first arc surface, and the radius r <R in described three-arc face, the side near the peak of described first arc surface is marked with center of circle cutting O.
preferably, the material that described test block employing is similar to examined workpiece acoustic characteristic makes, and the thickness of described test block is 25mm.
the present invention also provides a kind of and uses above-mentioned test block to measure ultrasound wave angle probe incidence point and refraction angle method, described ultrasound wave angle probe is placed on the second arc surface, angle probe is moved along described arc surface, the acoustic beam that angle probe sends is towards the three-arc face of test block, the reflection wave in three-arc face is adjusted to maximum amplitude, now angle probe incidence point is in center of circle cutting O, determine angle probe incidence point position, measure the forward position length of incidence point distance angle probe front end, angle probe is made the mark of incidence point position.
further, angle probe is placed on the first arc surface of the test block identical with examined workpiece curvature, the acoustic beam that angle probe sends is towards the bottom surface of test block, move along the first described arc surface, bottorm echo is adjusted to maximum amplitude, and angle index value corresponding to described angle probe incidence point position is the refraction angle of described angle probe.
due to the employing of above technical scheme, the present invention compared with prior art tool has the following advantages:
ultrasonic test block provided by the invention and measuring method may be used for the ultrasonic testing of the cylindrical shell longitudinal seam ultrasonic testing of current extensive employing, the axial flaw of girth joint, the measurement at arc surface oblique probe incidence point and refraction angle in the ultrasonic testing of the axial flaw of pipeline, bar; The present invention is according to the characteristic of ultrasonic reflections, and devise Special test block for cambered surface ultrasound wave angle probe, test block profile is simple, easy to use.The present invention utilizes ultrasound wave in the reflection of Special test block cambered surface place and in test block, processes the cutting of the cambered surface center of circle, realizes convenient, to carry out arc surface oblique probe incidence point exactly measurement.The present invention utilizes ultrasound wave in the reflection of Special test block bottom surface place, and in test block, process refraction angle scale, realizes the measurement carrying out arc surface oblique probe refraction angle quickly and accurately.The present invention for the measuring method of cambered surface ultrasound wave angle probe, without the need to using special measurement instrument, without the need to calculating and tabling look-up, solving the difficult problem that arc surface oblique probe incidence point and refraction angle are measured well.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the invention will be further described:
fig. 1 is the structural representation of a kind of test block for measuring ultrasound wave angle probe incidence point and refraction angle of the present invention;
fig. 2 is the structural representation of a kind of test block for measuring ultrasound wave angle probe incidence point and refraction angle of the present invention,
1, test block; 2, angle probe.
Embodiment
below in conjunction with specific embodiment, the present invention is described in further details.Should be understood that these embodiments are for illustration of ultimate principle of the present invention, principal character and advantage, and the present invention does not limit by the scope of following examples.The implementation condition adopted in embodiment can do further adjustment according to specific requirement, and not marked implementation condition is generally the condition in normal experiment.
as shown in Figure 1, a kind of test block 1 for measuring ultrasound wave angle probe incidence point and refraction angle, described test block 1 is a quadrant cylinder, described test block 1 comprises the first arc surface BC, bottom surface AB, vertical plane AC and is positioned at the side of both sides, front and back, described bottom surface AB and described vertical plane AC is perpendicular, and angle index is carved with in described side.Test block 1 adopts the material similar to examined workpiece acoustic characteristic to make, and the thickness of test block 1 is 25mm.The curvature of the first arc surface BC of test block 1 differs should be less than 10% with the curvature of examined workpiece.Test block 1 indicates refraction angle scale near the form of the permanent cutting in the side of the first arc surface.And indicate 30 °, 40 °, 50 °, 60 °, 70 ° refraction angle angle value.Part curvature radius is greater than to the test block of 120mm, angle index spacing is at least 0.5 °, part curvature radius is less than or equal to the test block of 120mm, and angle index spacing is 1 °.From the side, A is the center of circle of a circular arc, and ∠ BAC is right angle, and the scale value in test block 1 is the line of described angle position to the center of circle and the angle of vertical plane AC.
ultrasound wave angle probe is positioned on the arc surface of the test block identical with detected part curvature, acoustic beam is towards the bottom surface AB of test block 1, mobile angle probe 2, the reflection wave of bottom surface AB is adjusted to maximum amplitude, now ultrasonic wave acoustic beam and bottom surface AB perpendicular, test block side scale value corresponding to the incidence point position of angle probe 2 is the refraction angle of this angle probe 2.
as shown in Figure 2, for a kind of test block 1 involved by the another kind of embodiment of the present invention, described test block 1 comprises a quadrant cylinder, described test block 1 comprises the first arc surface, bottom surface, vertical plane and is positioned at the side of both sides, front and back, described bottom surface and described vertical plane perpendicular, angle index is carved with in described side.The radius of the first arc surface is R, and the curvature of the first arc surface is consistent with the curvature of detected workpiece.To extend back formation second arc surface at the peak of the first arc surface, the second described arc surface and the first arc surface center of circle, radius are identical, described test block 1 also comprises a three-arc face, the one end in described three-arc face is connected with the second described arc surface, the other end is connected with described vertical plane, and the center of circle in described three-arc face is positioned at the peak of the first arc surface, and the radius r <R in described three-arc face, the side near the peak of described first arc surface is marked with center of circle cutting O.Further improvement has been carried out in test block 1 shown in Fig. 2 compared with the test block shown in Fig. 1, and described test block 1 adopts the material similar to examined workpiece acoustic characteristic to make, and the thickness of described test block 1 is 25mm.
when using test block 1 as shown in Figure 2 to carry out the measurement at angle probe 2 incidence point and refraction angle, the measurement at angle probe 2 incidence point and refraction angle is carried out in the cambered surface of the same side, described ultrasound wave angle probe 2 is placed on the second arc surface, angle probe 2 is moved along described arc surface, the acoustic beam that angle probe 2 sends is towards the three-arc face of test block, the reflection wave in three-arc face is adjusted to maximum amplitude, now angle probe 2 incidence point is in center of circle cutting O, determine angle probe 2 incidence point position, measure the forward position length of incidence point distance angle probe 2 front end, angle probe 2 is made the mark of incidence point position.Angle probe 2 is placed on the first arc surface of the test block 1 identical with examined workpiece curvature, the acoustic beam that angle probe 2 sends is towards the bottom surface of test block, move along the first described arc surface, bottorm echo is adjusted to maximum amplitude, and angle index value corresponding to described angle probe 2 incidence point position is the refraction angle of described angle probe 2.
front and back position of the present invention refer in test block as shown in the figure towards outside paper for front side, crossing position, arc surface BC and vertical plane AC two faces is top.
above to invention has been detailed description; the explanation of embodiment just understands method of the present invention and core concept thereof for helping; its object is to allow the personage being familiar with this art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (5)
1. one kind for measuring the test block at ultrasound wave angle probe refraction angle, it is characterized in that: described test block comprises a quadrant cylinder, described quadrant cylinder comprises the first arc surface, bottom surface, vertical plane and is positioned at the side of both sides, front and back, described bottom surface and described vertical plane perpendicular, described bottom surface and the boundary line of vertical plane are described cylindrical circle core shaft, and angle index is carved with in described side on the edge of the first arc surface.
2. a kind of test block for measuring ultrasound wave angle probe refraction angle according to claim 1, it is characterized in that: the radius of the first described arc surface is R, the radian of described first arc surface is consistent with the radian of examined workpiece, described test block also comprises second arc surface be connected at peak with described first arc surface, the second described arc surface and the first arc surface center of circle, radius is identical, described test block also comprises a three-arc face, the one end in described three-arc face is connected with the second described arc surface, the other end is connected with described vertical plane, and the center of circle in described three-arc face is positioned at the peak of the first arc surface, and the radius r <R in described three-arc face, side near the peak of described first arc surface is marked with center of circle cutting O.
3. according to claim 2 a kind of in the test block of measuring ultrasound wave angle probe refraction angle, it is characterized in that: the thickness of described test block is 25mm.
4. use the test block described in any one of claim 1 ~ 3 to measure ultrasound wave angle probe parametric technique, it is characterized in that: angle probe is placed on the first arc surface of the test block identical with examined workpiece curvature, the acoustic beam that angle probe sends is towards the bottom surface of test block, move along the first described arc surface, bottorm echo is adjusted to maximum amplitude, and angle index value corresponding to described angle probe incidence point position is the refraction angle of described angle probe.
5. ultrasound wave angle probe parametric technique is measured in test block according to claim 4, it is characterized in that: described ultrasound wave angle probe is placed on the second arc surface, angle probe is moved along described arc surface, the acoustic beam that angle probe sends is towards the three-arc face of test block, the reflection wave in three-arc face is adjusted to maximum amplitude, now angle probe incidence point is in center of circle cutting O, determine angle probe incidence point position, measure the forward position length of incidence point distance angle probe front end, angle probe is made the mark of incidence point position.
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| CN201410594301.1A CN104297351B (en) | 2014-10-29 | 2014-10-29 | A kind of test block for measuring ultrasonic wave angle probe refraction angle and measuring method thereof |
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| CN104297351B CN104297351B (en) | 2016-08-17 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706763A (en) * | 2017-01-18 | 2017-05-24 | 天津赛达鑫源检验检测有限公司 | Portable and adjustable tubular-product inner-diameter ultrasonic detection rod |
| CN106802325A (en) * | 2016-11-28 | 2017-06-06 | 中车齐齐哈尔车辆有限公司 | The test device and detection method of acoustic axis angle of deviation |
| CN109781860A (en) * | 2018-10-31 | 2019-05-21 | 上海船舶工艺研究所(中国船舶工业集团公司第十一研究所) | A kind of reference block and calibration method |
| CN110320282A (en) * | 2019-06-27 | 2019-10-11 | 东方电气集团东方锅炉股份有限公司 | Variable-angle ultrasonic probe and pipe circumferential weld transverse defect supersonic detection method |
| CN110763770A (en) * | 2019-11-06 | 2020-02-07 | 南京迪威尔高端制造股份有限公司 | Drum-shaped test block |
| CN110763768A (en) * | 2019-10-29 | 2020-02-07 | 南京迪威尔高端制造股份有限公司 | Bird-shaped test block |
| CN110988127A (en) * | 2019-12-16 | 2020-04-10 | 宝钢特钢韶关有限公司 | Signal identification method for detecting defects on surface and near surface of round bar by rotary ultrasonic |
| CN111239261A (en) * | 2019-11-29 | 2020-06-05 | 内蒙古北方重工业集团有限公司 | Method for measuring refraction angle of small-angle probe |
| CN111413412A (en) * | 2019-01-04 | 2020-07-14 | 国电锅炉压力容器检验有限公司 | Method for measuring refraction angle of ultrasonic probe |
| CN111413413A (en) * | 2019-01-04 | 2020-07-14 | 国电锅炉压力容器检验有限公司 | Test block for measuring refraction angle of ultrasonic probe |
| CN112834620A (en) * | 2020-12-01 | 2021-05-25 | 中广核检测技术有限公司 | Offline ultrasonic nondestructive testing method for PBF additive manufacturing |
| CN113418991A (en) * | 2021-07-05 | 2021-09-21 | 西安热工研究院有限公司 | Reference block and method for determining incident point of circumferential defect detection of pipe fitting |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106802325A (en) * | 2016-11-28 | 2017-06-06 | 中车齐齐哈尔车辆有限公司 | The test device and detection method of acoustic axis angle of deviation |
| CN106802325B (en) * | 2016-11-28 | 2019-10-25 | 中车齐齐哈尔车辆有限公司 | The test device and detection method of acoustic axis angle of deviation |
| CN106706763A (en) * | 2017-01-18 | 2017-05-24 | 天津赛达鑫源检验检测有限公司 | Portable and adjustable tubular-product inner-diameter ultrasonic detection rod |
| CN109781860A (en) * | 2018-10-31 | 2019-05-21 | 上海船舶工艺研究所(中国船舶工业集团公司第十一研究所) | A kind of reference block and calibration method |
| CN111413412B (en) * | 2019-01-04 | 2023-06-27 | 国电锅炉压力容器检验有限公司 | Method for measuring refraction angle of ultrasonic probe |
| CN111413413B (en) * | 2019-01-04 | 2023-06-27 | 国电锅炉压力容器检验有限公司 | Test block for measuring refraction angle of ultrasonic probe |
| CN111413412A (en) * | 2019-01-04 | 2020-07-14 | 国电锅炉压力容器检验有限公司 | Method for measuring refraction angle of ultrasonic probe |
| CN111413413A (en) * | 2019-01-04 | 2020-07-14 | 国电锅炉压力容器检验有限公司 | Test block for measuring refraction angle of ultrasonic probe |
| CN110320282A (en) * | 2019-06-27 | 2019-10-11 | 东方电气集团东方锅炉股份有限公司 | Variable-angle ultrasonic probe and pipe circumferential weld transverse defect supersonic detection method |
| CN110763768A (en) * | 2019-10-29 | 2020-02-07 | 南京迪威尔高端制造股份有限公司 | Bird-shaped test block |
| WO2021082587A1 (en) * | 2019-10-29 | 2021-05-06 | 南京迪威尔高端制造股份有限公司 | Bird-shaped test block |
| CN110763770A (en) * | 2019-11-06 | 2020-02-07 | 南京迪威尔高端制造股份有限公司 | Drum-shaped test block |
| CN111239261A (en) * | 2019-11-29 | 2020-06-05 | 内蒙古北方重工业集团有限公司 | Method for measuring refraction angle of small-angle probe |
| CN110988127A (en) * | 2019-12-16 | 2020-04-10 | 宝钢特钢韶关有限公司 | Signal identification method for detecting defects on surface and near surface of round bar by rotary ultrasonic |
| CN112834620A (en) * | 2020-12-01 | 2021-05-25 | 中广核检测技术有限公司 | Offline ultrasonic nondestructive testing method for PBF additive manufacturing |
| CN113418991A (en) * | 2021-07-05 | 2021-09-21 | 西安热工研究院有限公司 | Reference block and method for determining incident point of circumferential defect detection of pipe fitting |
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