CN106847011B - Ultrasonic comprehensive measuring device for teaching - Google Patents
Ultrasonic comprehensive measuring device for teaching Download PDFInfo
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- CN106847011B CN106847011B CN201710197630.6A CN201710197630A CN106847011B CN 106847011 B CN106847011 B CN 106847011B CN 201710197630 A CN201710197630 A CN 201710197630A CN 106847011 B CN106847011 B CN 106847011B
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
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Abstract
The invention discloses an ultrasonic comprehensive measuring device for teaching, which comprises: a base arranged on the supporting surface, wherein the base is provided with an ultrasonic transmitting device used for generating and transmitting ultrasonic waves; a shaft disposed on the base, perpendicular to the support surface; one end of the rotating arm is sleeved on the shaft and can rotate relatively, the other end of the rotating arm is used as a free end and is connected with the end part of the guide rail and used for driving the guide rail to rotate, and the guide rail is provided with an ultrasonic receiving device; the center of the dial is provided with a hole, is sleeved on the shaft and can rotate relative to the shaft; the center of the vernier disk is provided with a hole and is sleeved on the shaft, and the vernier disk can rotate relative to the shaft and rotate relative to the dial; and the object stage is sleeved at the upper end of the shaft, is used for bearing a measurement sample, can rotate relative to the shaft and can rotate relative to the vernier disk. The device provided by the invention is improved through an optimized structure, is matched and combined with a teaching experiment, can have an integrated function of a plurality of ultrasonic testing experiments, and is simple in structure and high in precision.
Description
Technical Field
The invention belongs to the field of experimental teaching instruments, and particularly relates to an ultrasonic measuring device for teaching.
Background
With the development of electronic technology, digital technology and automatic control technology, ultrasonic waves are widely applied to the fields of machine manufacturing, national defense, industrial and agricultural production, medicine, petrochemical industry, traffic bioscience and the like with the advantages of high precision, no damage, non-contact and the like, and play an irreplaceable unique role. For example, in the ultrasonic treatment, ultrasonic welding, drilling, pulverization, emulsification, degassing, dust removal, descaling, cleaning, sterilization, chemical reaction promotion, biological research, and the like can be performed by utilizing the mechanical action, cavitation, thermal effect, and chemical effect of ultrasonic waves. In the ultrasonic inspection, defects inside the solid material, material dimension measurement, physical parameter measurement, and the like are inspected using ultrasonic waves. In view of the wide application of ultrasound, the popularization of ultrasound-related knowledge is essential. Because the sound field forming process of the ultrasonic wave, the propagation rule in the medium and the working principle of ultrasonic detection are abstract, the adoption of an intuitive experimental teaching mode is more favorable for students to observe and understand the generation and propagation rules of the ultrasonic wave and the ultrasonic detection principle, and the development of the ultrasonic detection device for teaching is significant.
At present, the experimental content related to ultrasonic waves in domestic physical experiments is single, one of the reasons is that an ultrasonic experiment teaching instrument with good performance is lacked, the ultrasonic experiment teaching instrument is basically a supersonic speed measuring instrument, and the teaching target and the teaching effect are general; in particular, instruments for measuring various properties of ultrasonic waves are generally dispersed, and a plurality of ultrasonic testing experiments cannot be performed at the same time; in addition, the teaching experiment instrument applied to the physical teaching has high precision and high price, and a large amount of manpower and material resources are required to be invested for maintenance.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention provides an ultrasonic comprehensive measuring device for teaching, which is based on the structure and application principle of a spectrometer, can have the integrated function of a plurality of ultrasonic testing experiments through optimized structural improvement and matching and combining with teaching experiments, and has simple structure and high precision.
To achieve the above object, according to the present invention, there is provided an ultrasonic comprehensive measurement apparatus for teaching, comprising:
a base disposed on the supporting surface, the base being provided with an ultrasonic wave emitting device for generating and emitting an ultrasonic wave;
a shaft disposed on the base, perpendicular to the support surface;
one end of the rotating arm is sleeved on the shaft and can rotate relatively, the other end of the rotating arm is used as a free end and is connected with the end part of the guide rail and used for driving the guide rail to rotate, and the guide rail is provided with an ultrasonic receiving device;
the center of the dial is provided with a hole, is sleeved on the shaft and can rotate relative to the shaft;
the center of the vernier disk is provided with a hole and sleeved on the shaft, and the vernier disk can rotate relative to the shaft and the dial; and
and the object stage is sleeved at the upper end of the shaft and used for bearing a measurement sample, and can rotate relative to the shaft and simultaneously rotate relative to the vernier disk.
As a further preferred embodiment of the present invention, the guide rail includes a first guide rail and a second guide rail, wherein one end of the first guide rail is connected to the free end of the rotating arm, a first guide rail slider capable of sliding relative to the first guide rail is sleeved on the first guide rail, the second guide rail is vertically disposed on the first guide rail through the first guide rail slider, and the ultrasonic receiving device is mounted on the second guide rail.
In a further preferred embodiment of the present invention, a second rail slider is provided on the second rail, the second rail slider being slidable with respect to the second rail, and the ultrasonic wave receiving device is provided on the second rail slider.
As a further preferable mode of the present invention, the dial is located above the tumbler, the height of the dial relative to the base on the shaft is higher than that of the tumbler, the dial and the tumbler are relatively rotatable, and one end of the dial is provided with a dial locking screw which can lock the dial and the shaft after the dial is rotated to a proper position.
As a further preferable mode of the invention, the vernier dial is located above the scale, the height of the vernier dial relative to the base on the shaft is higher than that of the scale, the vernier dial and the rotating arm can rotate relatively, the shaft is sleeved with the locking sleeve, the locking sleeve and the vernier dial form a rotation pair, and one end of the locking sleeve is provided with the scale locking screw which can lock the vernier dial and the shaft after the vernier dial rotates in place.
As a further preferred of the present invention, the lower end of the object stage is provided with an object stage locking screw for locking the object stage to rotate relatively after the object stage rotates in place relative to the shaft, and the object stage is provided with a leveling screw for leveling the object stage.
In a further preferred embodiment of the present invention, a horizontal bubble is provided in the countersunk hole in the center of the stage for leveling the condition stage, and the lower end of the horizontal bubble passes through the countersunk hole of the stage and forms a revolute pair with the stage.
As a further preferred of the present invention, the lower portion of the free end of the rotating shaft is connected to a first universal wheel, the first universal wheel is disposed between the rotating arm and the supporting surface for supporting and following when the rotating arm rotates, the rotation of the rotating arm can drive a first guide rail to rotate, and the other end of the first guide rail is provided with a second universal wheel for supporting the end.
As a further preferable aspect of the present invention, the base is provided with an ultrasonic wave emitting device fixing rod which is arranged in parallel with the shaft 3 at a spacing and by which the ultrasonic wave emitting device is mounted.
As a further preferable mode of the present invention, the inner side of the end portion of the rotating arm sleeved with the shaft is provided with a rotating arm locking soft copper sheet, the inner side of the central hole sleeved with the dial and the shaft is provided with a dial locking soft copper sheet, the inner wall of the central hole sleeved with the vernier dial and the shaft is provided with a vernier dial locking soft copper sheet, and the inner wall of the hole sleeved with the objective table and the shaft is provided with an objective table locking soft copper sheet.
The invention also discloses application of the ultrasonic comprehensive measuring device for teaching in measurement of ultrasonic wavelength, measurement of ultrasonic propagation speed, test of ultrasonic reflection coefficient and rule, measurement of refractive index of ultrasonic waves in the same medium, measurement of vertex angle of an ultrasonic triangular prism, ultrasonic single-slit diffraction observation, ultrasonic double-slit interference observation or simulation of Bragg diffraction of an X-ray diffractometer measurement crystal model.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:
(1) Through the optimized structural improvement, the ultrasonic receiving end can not only move back and forth, but also rotate left and right and move up and down, so that three-dimensional measurement can be realized, and other physical characteristics of ultrasonic waves, such as interference, diffraction, refraction, bragg diffraction and the like, can be measured besides the measurement of ultrasonic speed;
(2) According to the ultrasonic comprehensive measuring device, the vernier disc and the dial are correspondingly designed and optimized, the division value is smaller, the measuring precision is higher, and the precision of the measuring angle is improved under the condition of achieving the assembling precision;
(3) The ultrasonic comprehensive measuring device has the advantages that the matching design of the base, the shaft, the objective table, the ultrasonic generating device and the receiving device can be matched and combined with the contents of physical teaching experiments, the ultrasonic comprehensive measuring device has the integrated function of a plurality of ultrasonic testing experiments, and the ultrasonic comprehensive measuring device is simple in structure and high in precision.
Drawings
FIG. 1 is a schematic structural diagram of an ultrasonic integrated measurement apparatus constructed in accordance with an embodiment of the present invention;
FIG. 2 is a partially enlarged view of a measurement portion of the ultrasonic integrated measuring device of FIG. 1;
FIG. 3 is a partial cross-sectional view of the ultrasonic integrated measuring device of FIG. 1;
FIG. 4 is a partial enlarged view of an ultrasonic wave transmitting end of the ultrasonic integrated measuring device of FIG. 1;
FIG. 5 is a partial enlarged view of an ultrasonic receiving end of the ultrasonic integrated measuring device of FIG. 1;
the same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein: 1-base, 2-leveling screw, 3-shaft, 4-rotating arm, 5-first universal wheel, 6-first guide rail, 7-second universal wheel, 8-second guide rail, 9-ultrasonic receiving device, 10-dial, 11-stage, 12-level bulb, 13-vernier disk, 14-locking sleeve, 15-ultrasonic transmitting device, 16-ultrasonic transmitting device fixing rod, 17-rotating arm locking screw, 18-ultrasonic piezoelectric transducer pitch angle adjusting screw, 19-stage locking screw, 20-vernier disk locking screw, 21-dial locking screw, 22-clamping sheet, 23-vernier disk locking soft copper sheet, 24-rotating arm locking soft copper sheet, 25-thrust cylindrical roller bearing, 26-vernier disk locking soft copper sheet, 27-stage locking soft copper sheet, 28-vernier, 29-ultrasonic transmitting device fixing rod fixing bolt, 30-groove, 31-clamping sheet, 32-ultrasonic transmitting device adjusting screw, 33-second slider locking, 34-second guide rail, 35-second slider locking screw, 35-first guide rail, 36-second slider locking screw, 37-slider locking groove, 38-second slider locking screw, and 38-slider locking groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 is a schematic structural diagram of an ultrasonic comprehensive measurement apparatus constructed according to an embodiment of the present invention. As shown in fig. 1, an ultrasonic comprehensive measuring device provided by an embodiment of the present invention is used in physics teaching, and includes a base 1, a shaft 3, a rotating arm 4, a dial 10, and a vernier disk 13, wherein the shaft 3 is vertically arranged on the base 1 and supported by the base 1. The rotating arm 4 is preferably in the shape of a rod, one end of which is sleeved on the shaft 3 and can rotate relative to the shaft 3, the other end of the rotating arm 4 is a free end and is connected with the end part of a first guide rail 6, the lower part of the free end of the rotating arm 4 is connected with a first universal wheel 5, and the first universal wheel 5 is arranged between the rotating arm 4 and a supporting surface and is used for supporting and following when the rotating arm 4 rotates. The rotation of the rotating arm 4 can drive the first guide rail 6 to rotate, and the other end of the first guide rail 6 is also provided with a universal wheel, namely a second universal wheel 7.
As shown in fig. 5, one end of the second rail 8 is disposed on the first rail 6 via a slider, and the second rail 8 is disposed perpendicularly to the first rail 6, and is relatively slidable on the first rail 6. The ultrasonic receiver 9 is disposed on the second guide rail 8 via a slider, and is relatively slidable on the second guide rail 8.
As shown in fig. 5, a second rail slider 38 is disposed on the second rail 8, the ultrasonic receiver 9 is disposed on the second rail 8 through the second rail slider 38, and a second slider locking screw 33 is disposed on the second rail slider 38, and is used for locking and fixing through the second slider locking screw 33 after the second rail slider 38 slides to a proper position on the second rail 8.
The second guide rail 8 is connected to the first guide rail 6 by a first guide rail slider 39, the second guide rail 8 is vertically mounted to the first guide rail 6 by the first guide rail slider 39, and the first guide rail slider 39 slides on the first guide rail 6. The first rail block 39 is provided with a second rail fastening screw 34 for fixing the second rail 8 to the first rail block 39, and the first rail block 39 is further provided with a first block locking screw 35 for locking the relative sliding between the first rail block 39 and the first rail 6 after the first rail block 39 slides in place.
The end of the first rail 6 is screw-fitted to one end of the rotating arm 4 by a first rail fastening screw 37, and the upper end of the rotating arm 4 is provided with a second rail notch 36.
As shown in fig. 1, the base 1 is further provided with an ultrasonic transmitter fixing bar 16, which is preferably perpendicular to the base 1, and supported by the base 1, and the ultrasonic transmitter fixing bar 16 is preferably arranged in parallel with the shaft 3 at a distance. The ultrasonic wave emitting device fixing rod 16 is mounted with an ultrasonic wave emitting device 15 for generating and emitting an ultrasonic wave.
As shown in fig. 2, one end of the tumbler 4, which is fitted around the shaft 3, is provided with a tumbler locking screw 17 by which the relative rotation between the tumbler 4 and the shaft 3 can be locked after the tumbler 4 is rotated in place.
The dial 10 is centrally apertured and is fitted over the shaft 3 for rotation relative to the shaft 3. Preferably, the scale 10 is located above the arm 4, i.e. the scale 10 is higher than the arm 4 with respect to the base 1. The scale 10 and the rotating arm 4 are relatively rotatable. As shown in fig. 2, dial 10 is preferably provided at one end with a dial locking screw 21 which locks the dial 10 against rotation relative to shaft 3 after it has been rotated into position. The scale 10 may be semicircular, circular, or arc with other angles.
The center of the vernier disk 13 is opened and is fitted over the shaft 3 to be rotatable relative to the shaft 3. Preferably, the vernier disk 13 is located above the scale 10, i.e. the vernier disk 13 is higher than the scale 10 with respect to the base 1. The vernier disk 13 and the rotating arm 4 can rotate relatively. Preferably, the shaft 3 is sleeved with a locking sleeve 14, the locking sleeve 14 and the vernier dial 13 form a rotation pair, and one end of the locking sleeve 14 is provided with a dial locking screw 20 which can lock the vernier dial 13 and the shaft 3 to rotate relatively after the vernier dial is rotated in place. The vernier disk 13 may be semicircular, may be circular, and may also be arc-shaped with other angles.
The stage 11 is disposed at the opposite end of the shaft 3 from the base end, which is the top of the shaft 3 as shown in fig. 1. The object stage 11 can rotate relative to the shaft 3, and an object stage locking screw 19 is arranged at the lower end of the object stage 11 and used for locking the relative rotation of the object stage 11 after the object stage is rotated in place relative to the shaft 3. The object stage 11 is provided with a leveling screw 2 for leveling the object stage 11.
As shown in FIG. 3, a soft rotating arm locking copper sheet 24 is arranged on the inner side of one end of the rotating arm 4 which is sleeved with the shaft 3, a soft dial locking copper sheet 23 is arranged on the inner side of one end of the dial 10, a soft vernier dial locking copper sheet 26 is arranged on the inner side of one end of the vernier dial, and a soft objective table locking copper sheet 27 is arranged at the lower end of the objective table 11. The object table 11 is provided with a level bulb 12 at a countersunk hole, for example 30mm in length, which is used for level adjustment. The lower end of the horizontal bubble 12 passes through a countersunk hole of the objective table 11 to form a revolute pair with the objective table.
As shown in fig. 4, an ultrasonic transmitter fixing rod fixing bolt 29 is provided at the lower end of the ultrasonic transmitter fixing rod 16, a square groove 30 having a depth of, for example, 50mm is provided at the upper end of the ultrasonic transmitter fixing rod, the groove 30 is engaged with a fastening piece 31 to move the ultrasonic transmitter 15 up and down, and two ultrasonic transmitter adjusting screws 32 are provided at both ends of the ultrasonic transmitter 15.
The measuring device comprises an ultrasonic transmitting system, an ultrasonic spectrometer, an ultrasonic receiving system, an ultrasonic comprehensive measuring device, an ultrasonic medium and an ultrasonic element box, and is used for completing tests and measurements such as measurement of ultrasonic wave wavelength, measurement of propagation speed of ultrasonic wave, research on reflection coefficient and law of ultrasonic wave, measurement of refractive index of ultrasonic wave in different media, measurement of vertex angle of an ultrasonic triangular prism, observation of ultrasonic single-slit diffraction, observation of ultrasonic double-slit interference, and Bragg diffraction of a simple crystal model measured by a simulated X-ray diffractometer.
The transmitting end of the comprehensive measuring device is fixed on the supporting leg of the base 1, and the receiving end of the comprehensive measuring device is fixed on one side of the rotating arm 4 and can rotate left and right. The vernier disk 13 and the scale 10 may preferably be circular, semicircular, or arc-shaped with other angles. The vernier disk 13 can be a single vernier, or can be a double vernier which is symmetrical by 180 degrees through the diameter center. The scale on the vernier disk 13 is preferably divided into 30 cells, and the accuracy of measuring the angle can be improved when the assembly accuracy is achieved.
The ultrasonic receiving end of the comprehensive measuring device can move back and forth, rotate left and right and move up and down, so that three-dimensional measurement can be realized, and other physical characteristics of ultrasonic waves, such as interference, diffraction, refraction, bragg diffraction and the like, can be measured besides ultrasonic measurement.
Specifically, in one embodiment, when the device is used for three-dimensional measurement, the receiving end of the device is fixed on the second guide rail 8, the second guide rail 8 is matched with the first guide rail 6, the second guide rail 8 is provided with scales on one surface, the measuring range is preferably 150mm, the division value is preferably 1mm, the device is similar to the main scale of a vernier caliper, in addition, the second guide rail sliding block 38 is provided with scale marks (the measuring precision is preferably 0.02 mm) only without a measuring jaw clamping a measured object, and the reading method is the same as that of the vernier caliper. And moving the second guide rail slide block to a required position, screwing the fastening screw to fix the slide block, and knowing the displacement of the receiving end in the direction through reading so as to measure experimental data. The first guide rail, preferably with a measuring range of 300mm, is fitted with the second guide rail 8 by means of a first guide rail slide, the first guide rail slide 39 likewise having graduation marks, corresponding to a vernier. The guide rail is fixed on the rotating arm, when the rotating arm is parallel to the axis of the transmitting end, the moving direction of the sliding block matched with the second guide rail is parallel to the axis of the ultrasonic transmitting end, the matching of the sliding block of the guide rail is used for measuring the displacement distance of the front and back movement of the ultrasonic receiving end, the front and back movement is carried out to a proper distance and is fastened by a fastening screw, the reading can be read, and the ultrasonic measurement can be carried out in the direction. In order to prevent the first guide rail from bending and deforming in the experimental process, a supporting universal wheel is additionally arranged at the front end and the tail end, and the height of the supporting universal wheel is just right to enable the first guide rail to be parallel to the horizontal plane (the experimental error is reduced).
The first guide rail 6 can be taken down when the ultrasonic receiving end does not need to move back and forth, and the second guide rail 8 is directly fixed on the second guide rail notch 36 on the rotating arm 4, so that the occupied area for carrying out experiments can be reduced, and meanwhile, the measurement precision can be influenced due to the overlong force arm.
The transmitting end is fixed on the supporting leg of the base, but in order to find the best position of the transmitting end in the experimental process, the device fixes the ultrasonic piezoelectric transducer on the transmitting bracket through the fastening sleeve. There is a counter bore on objective table 11, has placed the level bubble in the counter bore, detects whether the objective table is level, and adjusts the objective table level and then realizes through three adjusting screw of objective table lower extreme.
The axis of the ultrasonic transmitting end and the axis of the receiving end need to be coincident every time before the experiment starts, so that the experiment error can be reduced. The receiving end is slightly rotated under the condition that the two ends are parallel by visual observation, the peak value is searched by observing the waveform of the oscilloscope in the process, the condition that the two ends are parallel is shown when the peak value appears, and the experimental data is measured by searching the positions of wave crests and wave troughs by observing the oscilloscope when the experiments of interference, diffraction and refraction are carried out.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides an ultrasonic wave integrated measurement device for teaching which characterized in that includes:
a base (1) arranged on the supporting surface, wherein an ultrasonic transmitting device (15) is arranged on the base (1) and is used for generating and transmitting ultrasonic waves;
a shaft (3) arranged on the base (1) and vertical to the supporting surface;
one end of the rotating arm (4) is sleeved on the shaft (3) and can rotate relatively, the other end of the rotating arm is used as a free end and is connected with the end part of the guide rail and used for driving the guide rail to rotate, and the guide rail is provided with an ultrasonic receiving device (9);
the dial (10) is provided with a hole in the center, sleeved on the shaft (3) and capable of rotating relative to the shaft (3), the dial (10) is positioned on the rotating arm (4), and the height of the dial on the shaft relative to the base (1) is higher than that of the rotating arm (4);
the vernier disc (13) is provided with a hole at the center, is sleeved on the shaft (3) and can rotate relative to the shaft (3) and rotate relative to the dial (10), the vernier disc (13) is positioned on the dial (10), and the height of the vernier disc on the shaft relative to the base (1) is higher than that of the dial (10); and
an object stage (11) which is sleeved on the upper end of the shaft (3) and is used for bearing a measuring sample, can rotate relative to the shaft (3) and can rotate relative to the vernier disk (13),
the guide rail comprises a first guide rail (6) and a second guide rail (8), wherein one end of the first guide rail (6) is connected with the free end of the rotating arm (4), a first guide rail sliding block (39) capable of sliding relative to the first guide rail is sleeved on the first guide rail (6), the second guide rail (8) is vertically arranged on the first guide rail (6) through the first guide rail sliding block (39), and the ultrasonic receiving device (9) is arranged on the second guide rail (8).
2. An ultrasonic comprehensive measuring device for teaching according to claim 1, wherein a second rail slider (38) is provided on the second rail (8) and is slidable with respect to the second rail (8), and the ultrasonic receiving device (9) is provided on the second rail slider (38).
3. An ultrasonic comprehensive measuring device for teaching according to any one of claims 1 or 2, wherein the scale (10) and the rotating arm (4) are relatively rotatable, and one end of the scale (10) is provided with a scale locking screw (21) which can lock the scale (10) to rotate relatively to the shaft (3) after it is rotated to a certain position.
4. The ultrasonic comprehensive measurement device for teaching according to claim 1 or 2, wherein the vernier disk (13) and the rotating arm (4) can rotate relatively, a locking sleeve (14) is sleeved on the shaft (3), the locking sleeve (14) and the vernier disk (13) form a rotation pair, and a vernier disk locking screw (20) is arranged at one end of the locking sleeve (14) and can lock the vernier disk (13) to rotate relatively with the shaft (3) after the vernier disk is rotated in place.
5. An ultrasonic comprehensive measuring device for teaching according to claim 1 or 2, wherein the lower end of the object stage (11) is provided with an object stage locking screw (19) for locking the relative rotation of the object stage (11) after the object stage (11) is rotated in place relative to the shaft (3), and the object stage (11) is provided with a leveling screw (2) for leveling the object stage (11).
6. An ultrasonic comprehensive measuring device for teaching according to claim 1 or 2, wherein the lower part of the free end of the rotating arm (4) is connected with a first universal wheel (5), the first universal wheel (5) is arranged between the rotating arm (4) and a supporting surface and is used for supporting and following when the rotating arm (4) rotates, the rotation of the rotating arm (4) can drive a first guide rail (6) to rotate, and the other end of the first guide rail (6) is provided with a second universal wheel (7) for supporting the end.
7. An ultrasonic comprehensive measuring device for teaching according to claim 1 or 2, wherein the base (1) is provided with an ultrasonic transmitting device fixing rod (16) which is arranged in parallel with the shaft (3) at a spacing, and the ultrasonic transmitting device (15) is installed through the ultrasonic transmitting device fixing rod (16).
8. The ultrasonic comprehensive measuring device for teaching according to claim 1 or 2, wherein a tumbler locking soft copper sheet (24) is arranged on the inner side of the end part of the tumbler (4) sleeved with the shaft (3), a dial locking soft copper sheet (23) is arranged on the inner side of the center hole of the dial (10) sleeved with the shaft, a vernier dial locking soft copper sheet (26) is arranged on the inner wall of the center hole of the vernier dial sleeved with the shaft, and a stage locking soft copper sheet (27) is arranged on the inner wall of the hole of the stage (11) sleeved with the shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710197630.6A CN106847011B (en) | 2017-03-29 | 2017-03-29 | Ultrasonic comprehensive measuring device for teaching |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710197630.6A CN106847011B (en) | 2017-03-29 | 2017-03-29 | Ultrasonic comprehensive measuring device for teaching |
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| CN106847011A CN106847011A (en) | 2017-06-13 |
| CN106847011B true CN106847011B (en) | 2022-12-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2418932A1 (en) * | 1978-03-03 | 1979-09-28 | Krautkraemer Gmbh | DEVICE FOR GUIDING ULTRASONIC EXAMINATIONS |
| CN101936957B (en) * | 2010-07-06 | 2012-01-11 | 浙江大学 | Ultrasonic sixteen-degree-of-freedom scanning and detecting device |
| CN102364556A (en) * | 2011-10-21 | 2012-02-29 | 华北电力大学（保定） | Spectrometer experimental device |
| CN203026029U (en) * | 2013-01-22 | 2013-06-26 | 浙江农林大学 | Auxiliary reading device of spectrometer |
| CN105139736B (en) * | 2015-09-28 | 2017-07-14 | 西安电子科技大学 | Spectromenter Adjustment demonstrator |
| CN105702143A (en) * | 2016-04-01 | 2016-06-22 | 杨溢 | Tracking leveling type spectrometer |
| CN106097853B (en) * | 2016-07-23 | 2019-07-09 | 唐山学院 | Spectrometer reading amendment alarm set |
| CN206864044U (en) * | 2017-03-29 | 2018-01-09 | 华中科技大学文华学院 | Ultrasonic wave comprehensive measurement device for teaching |
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