CN107504904B - Height measuring instrument - Google Patents
Height measuring instrument Download PDFInfo
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- CN107504904B CN107504904B CN201710824185.1A CN201710824185A CN107504904B CN 107504904 B CN107504904 B CN 107504904B CN 201710824185 A CN201710824185 A CN 201710824185A CN 107504904 B CN107504904 B CN 107504904B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses a height measuring instrument, comprising: a support; the angle testing disc is pivoted on the support, and a first laser head is arranged on the periphery of a disc body of the angle testing disc; the ultrasonic device is arranged on the bracket; the grating device comprises a movable grating ruler and a static grating ruler, the movable grating ruler is fixedly connected to the periphery of the angle test disc, the static grating ruler is fixedly connected to the support through the support, and the static grating ruler is in a semi-circular arc shape; the signal processor comprises a grating signal processing circuit, an operation module and a display module, wherein the grating signal processing circuit is electrically connected with the movable grating ruler and the operation module, and the operation module is electrically connected with the display module. Therefore, the method has the advantages of wide application range, convenience in use, high accuracy and the like.
Description
Technical Field
The invention relates to the technical field of measuring equipment, in particular to a height measuring instrument.
Background
People sometimes need to measure the height of some objects in life and work, height measuring instruments with different specifications are generally used for measuring objects with different height ranges, the measuring range of the measuring instrument for measuring the height by utilizing ultrasonic waves is small in value, the height of a large object is generally measured and calculated by a traditional trigonometric function or shadow measuring method for the large object, multiple steps are needed, a lot of time and energy of a measurer are consumed, and if data errors or errors occur in the measuring and calculating steps, larger errors or errors can be caused as a result, time and labor are wasted, and the accuracy is low. Therefore, there is a need to improve the above-mentioned drawbacks in the prior art, and to provide a height measuring instrument with a wider application range and a convenient use.
Disclosure of Invention
The invention mainly aims to provide a height measuring instrument which has wide application range, convenient use and high accuracy, and the reference of the bottom surface of an object can be positioned at any height.
In order to achieve the above object, the present invention provides a height measuring instrument comprising: a support;
the angle testing disc is pivoted on the support, a first laser head is arranged on the periphery of a disc body of the angle testing disc, and the first laser head is used for determining two end points of an object to be tested;
the ultrasonic device is arranged on the bracket and used for measuring the horizontal distance from the axis of the angle test disc to the object to be tested;
the grating device comprises a movable grating ruler and a static grating ruler, the movable grating ruler is fixedly connected to the periphery of the angle test disc, the static grating ruler is fixedly connected to the support through the support, and the static grating ruler is in a semi-circular arc shape;
the signal processor comprises a grating signal processing circuit, an operation module and a display module, wherein the grating signal processing circuit is electrically connected with the movable grating ruler and the operation module, the operation module is electrically connected with the display module, the grating signal processing circuit comprises a first interface, a comparison circuit, a programmable logic device, a second interface and a power supply circuit, the comparison circuit is electrically connected with the first interface and the programmable logic device, the first interface is electrically connected with the power supply circuit, the programmable logic device is electrically connected with the second interface, and the second interface is electrically connected with the power supply circuit.
Furthermore, the tray body also comprises a locking device, and the front end of a lock tongue of the locking device extends into a clamping groove on the periphery of the tray body to stop the rotation of the tray body.
Furthermore, locking device still includes casing, actuating lever, links up piece and reset block, the tail end of spring bolt, actuating lever and reset block all pin joint are in the casing, the left side of linking up the piece is kept out on the spring bolt, the right side of linking up the piece is kept out on the reset block, the downside of linking up the piece is kept out on the actuating lever.
Furthermore, the connecting block is in a semicircular disc shape, two sides of the connecting block are respectively provided with a groove and a contact, the arc surface of the connecting block abuts against the reset block, a raised head positioned at the front end of the driving rod abuts against the groove, and the contact abuts against the spring bolt.
Furthermore, the locking device further comprises a torsion spring, an elastic sheet and a shifting block, wherein the torsion spring and the reset block are coaxially arranged, two ends of the torsion spring respectively abut against the reset block and the shell, one end of the elastic sheet is fixedly connected in the shell, the other end of the elastic sheet abuts against the spring bolt, the shifting block is arranged on the shell in a sliding mode, and the shifting block abuts against the driving rod.
Furthermore, the spring bolt comprises a lock rod, an inclined body and a lock head which are sequentially connected, the lock rod is pivoted in the shell, the contact is abutted against the inclined body, and the lock head extends into a clamping groove on the periphery of the disc body.
Further, still include second laser head and photoelectric detector, photoelectric detector sets up on the support, the second laser head sets up on the periphery of disk body, photoelectric detector is used for receiving the laser signal that the second laser head sent carries out zero correction.
Furthermore, the power supply circuit introduces +6V from the outside through the second interface, one path of the power supply circuit comprises a diode D1 and a voltage stabilizing circuit, the a pole of the diode D1 is electrically connected with the second interface, and the K pole of the diode D1 is connected with the input of the voltage stabilizing circuit and the first interface.
Furthermore, the other path of the power supply circuit comprises a schottky diode D2, a resistor R7, a farad capacitor C8, a resistor R8, a three-terminal adjustable shunt reference voltage source D4, a resistor R9 and a triode Q1, wherein the a pole of the schottky diode D2 is electrically connected with the second interface, the K pole of the schottky diode D2 is connected with the positive pole of the farad capacitor C8 through a resistor R7, the negative pole of the farad capacitor C8 is grounded, the positive pole of the farad capacitor C8 is connected with the input of the constant current circuit, the input end of the constant current circuit is connected with a collector of a resistor R8 and a triode Q1, the other end of the resistor R8 is connected with the base of the triode Q1 and the cathode of the three-terminal adjustable shunt reference voltage source D4, the reference terminal of the three-terminal adjustable shunt reference voltage source is connected with the emitter of the triode Q1 and the resistor R9, and the anode of.
Furthermore, the power supply circuit further comprises a Schottky diode D3, the A pole of the Schottky diode D3 is connected with the output of the constant current circuit, and the K pole of the Schottky diode D3 is connected with the K pole of the diode D1.
The technical scheme can show that the invention has the advantages that: the application range is wide, the object bottom surface reference can be positioned at any height, the use is convenient, and the accuracy is high.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the state of use of the present invention.
Fig. 3 is a schematic view of the structure of the locking device of the present invention.
Fig. 4 is a schematic view of the construction of the engagement block of the locking device of the present invention.
Fig. 5 is a schematic diagram of the power supply circuit of the signal processor of the present invention.
Labeled as: the device comprises a support 1, an angle test disc 2, a first laser head 21, a second laser head 22, a disc body 23, a handle 3, an ultrasonic device 4, a photoelectric detector 5, a support 6, a grating device 7, a movable grating ruler 71, a static grating ruler 72, a signal processor 8, a signal processing circuit 81, a first interface 811, a comparison circuit 812, a programmable logic device 813, a second interface 814, a power supply circuit 815, a locking device 9, a shell 90, a driving rod 91, a swing rod 911, a raised head 912, a connecting block 92, a groove 921, a contact 922, a reset block 93, a torsion spring 94, a bolt 95, a locking rod 951, an inclined body 952, a locking head 953, an elastic sheet 96, a shifting block 97 and an object 100 to be tested.
Detailed Description
It is to be noted that features in the various embodiments of the invention may be combined with each other without explicit limitation or conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 5, a height measuring instrument as shown in fig. 1 and 2 includes: the device comprises a support 1, an angle testing disc 2, a handle 3, an ultrasonic device 4, a grating device 7, a signal processor 8 and a locking device 9, wherein the angle testing disc 2 is pivoted on the support 1, a first laser head 21 is arranged on the periphery of a disc body 23 of the angle testing disc 2, and the first laser head 21 is used for determining two end points of an object to be tested 100; the handle 3 is fixedly connected to the tray body 23 and is used for rotating the tray body 23; the ultrasonic device 4 is arranged on the bracket 1 and used for measuring the horizontal distance from the axis of the angle test disc 2 to the object to be tested 100; the grating device 7 comprises a movable grating ruler 71 and a static grating ruler 72, the movable grating ruler 71 is fixedly connected to the periphery of the angle test disc 2, the static grating ruler 72 is fixedly connected to the support 1 through a support 6, and the static grating ruler 72 is in a semi-arc shape; the signal processor 8 is arranged on the bracket 1, and the signal processor 8 is electrically connected with the ultrasonic device 4 and the grating device 7; the locking device 9 is arranged on one side of the tray body 23, the front end of a lock tongue 95 of the locking device 9 extends into a clamping groove on the periphery of the tray body 23 to stop the rotation of the tray body 23, and the difference between the first laser head 21 and the movable grating ruler 71 is 180 degrees.
This altitude survey appearance still includes second laser head 22 and photoelectric detector 5, photoelectric detector 5 sets up on the support 1, second laser head 22 sets up on the periphery of disk body 23, second laser head 22 with 90 degrees phase differences between the first laser head 21, during initial state, the light that second laser head 22 jetted out is perpendicular downwards, photoelectric detector 5 is used for receiving the laser signal that second laser head 22 sent carries out zero correction.
When the laser angle measuring device works, firstly, the ultrasonic device 4 is used for measuring the horizontal distance L1 from the axis of the angle testing disc 2 to the object 100 to be measured, the first laser head 21 works to emit a laser beam, when the laser beam indicates the lowest end of the object 100 to be measured, the angle of the movement of the movable grating ruler 71 is used for obtaining the numerical value of the included angle B between the laser beam and the reference bottom surface of the object 100 to be measured, further the numerical value of the included angle C formed by the laser beam and the object 100 to be measured can be obtained, the trigonometric function formula L/cosB is L is used for obtaining the linear distance L from the axis of the angle testing disc 2 to the lowest end of the object 100 to be measured, the angle testing disc 2 is rotated, when the laser beam indicates the highest end of the object 100 to be measured, the grating device 7 is used for calculating the rotating angle A of the first laser head 21, the laser beam indicating the lowest end of the object 100, the laser beam indicating the highest end of the object 100 to be measured, the object 100 to be measured forms a triangle, two included angles and the numerical value of the side C, the numerical value of the included angle A, the L and the height of the object to be measured can be conveniently measured, and the height range of the distance can be measured.
As shown in fig. 3 and 4, the locking device 9 further includes a housing 90, a driving rod 91, a linking block 92 and a reset block 93, the tail end of the latch 95, the driving rod 91 and the reset block 93 are all pivoted in the housing 90, the left side of the linking block 92 abuts against the latch 95, the right side of the linking block 92 abuts against the reset block 93, the lower side of the linking block 92 abuts against the driving rod 91, wherein the linking block 92 is in a half-disk shape, two sides of the linking block 92 are respectively provided with a groove 921 and a contact 922, the arc surface of the linking block 92 abuts against the reset block 93, a raised head 912 at the front end of the driving rod 91 abuts against the groove 921, the contact 922 abuts against the latch 95, the latch 95 includes a latch rod 951, a slant 952 and a latch 953 connected in sequence, the latch rod 951 is pivoted in the housing 90, the contacts 922 abut against the ramp 952, and the locking head 953 extends into a slot located on the outer periphery of the plate 23.
The locking device 9 further comprises a torsion spring 94, an elastic sheet 96 and a shifting block 97, the torsion spring 94 and the reset block 93 are coaxially arranged, two ends of the torsion spring 94 respectively abut against the reset block 93 and the shell 90, one end of the elastic sheet 96 is fixedly connected in the shell 90, the other end of the elastic sheet 96 abuts against the bolt 95, the shifting block 97 is slidably arranged on the shell 90, the shifting block 97 abuts against the swing rod 911 of the driving rod 91, and the raised head 912 is located at the upper end of the swing rod 911.
The working principle of the locking device 9 is as follows: stir the shifting block 97 makes the actuating lever 91 swing, the actuating lever 91 makes the joining block 92 remove, because the joining block 92 support and keep out on the reset block 93, and the reset block 93 with the point of joining the block 92 contact is higher than the actuating lever 91 with the point of joining the block 92 contact, makes the joining block 92 produce the rotation, the joining block 92 rotates through the italic 952 drive the spring bolt 95 swings and makes the tapered end 953 with be located the draw-in groove separation on the periphery of disk body 23, angle test dish 2 is rotatable, unclamp the shifting block 97 under the effect of torsional spring 94, shell fragment 96 the spring bolt 95 resets and is located the draw-in groove block connection on the periphery of disk body 23, angle test dish 2 is not rotatable, makes angle test dish 2 can stop at arbitrary state, convenient to use.
As shown in fig. 5, the signal processor 8 includes a grating signal processing circuit 81, an operation module and a display module, the grating signal processing circuit 81 is electrically connected to both the movable grating ruler 71 and the operation module, and the operation module is electrically connected to the display module, wherein the grating signal processing circuit 81 includes a first interface 811, a comparison circuit 812, a programmable logic device 813, a second interface 814 and a power supply circuit 815, the comparison circuit 812 is electrically connected to both the first interface 811 and the programmable logic device 813, the first interface 811 is electrically connected to the power supply circuit 815, the programmable logic device 813 is electrically connected to the second interface 814, and the second interface 814 is electrically connected to the power supply circuit 815.
The power supply circuit 815 introduces +6V from the outside through the second interface 814, one path of the power supply circuit 815 includes a diode D1 and a voltage stabilizing circuit, the a pole of the diode D1 is electrically connected with the second interface 814, and the K pole of the diode D1 is connected with the input of the voltage stabilizing circuit and the first interface 811; the other path of the power supply circuit 815 comprises a schottky diode D2, a resistor R7, a farad capacitor C8, a resistor R8, a three-terminal adjustable shunt reference voltage source D4, a resistor R9 and a triode Q1, wherein the pole a of the schottky diode D2 is electrically connected with the second interface 814, the pole K of the schottky diode D2 is connected with the positive pole of the farad capacitor C8 through a resistor R7, the negative pole of the farad capacitor C8 is grounded, the positive pole of the farad capacitor C8 is connected with the input of a constant current circuit, the input end of the constant current circuit is connected with a collector of the triode Q1 through a resistor R8, the other end of the resistor R8 is connected with the base of the triode Q1 and the cathode of the three-terminal adjustable shunt reference voltage source D4, the reference end of the three-terminal adjustable shunt reference voltage source is connected with the emitter of the triode Q1 and the resistor R9, and the.
The power supply circuit 815 further comprises a schottky diode D3, the a pole of the schottky diode D3 is connected with the output of the constant current circuit, and the K pole of the schottky diode D3 is connected with the K pole of the diode D1.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A height measuring instrument, comprising:
a support (1);
the angle testing device comprises an angle testing disc (2), wherein the angle testing disc (2) is pivoted on a support (1), a first laser head (21) is arranged on the periphery of a disc body (23) of the angle testing disc (2), and the first laser head (21) is used for determining two end points of an object to be tested (100);
the ultrasonic device (4) is arranged on the bracket (1) and is used for measuring the horizontal distance from the axis of the angle test disc (2) to the object to be tested (100);
the grating device (7) comprises a movable grating ruler (71) and a static grating ruler (72), the movable grating ruler (71) is fixedly connected to the periphery of the angle testing disc (2), the static grating ruler (72) is fixedly connected to the support (1) through a support (6), and the static grating ruler (72) is in a semi-arc shape;
a signal processor (8), the signal processor (8) comprising a raster signal processing circuit (81), an arithmetic module and a display module, the grating signal processing circuit (81) is electrically connected with the movable grating ruler (71) and the operation module, the operation module is electrically connected with the display module, wherein the raster signal processing circuit (81) comprises a first interface (811), a comparison circuit (812), a programmable logic device (813), a second interface (814) and a power supply circuit (815), the comparison circuit (812) is electrically connected with the first interface (811) and the programmable logic device (813), the first interface (811) is electrically connected with the power supply circuit (815), the programmable logic device (813) is electrically connected with the second interface (814), and the second interface (814) is electrically connected with the power supply circuit (815);
the front end of a lock tongue (95) of the locking device (9) extends into a clamping groove on the periphery of the disc body (23) to stop the disc body (23) from rotating;
the locking device (9) further comprises a shell (90), a driving rod (91), a connecting block (92) and a reset block (93), the tail end of the lock tongue (95), the driving rod (91) and the reset block (93) are all pivoted in the shell (90), the left side of the connecting block (92) abuts against the lock tongue (95), the right side of the connecting block (92) abuts against the reset block (93), and the lower side of the connecting block (92) abuts against the driving rod (91);
the connecting block (92) is in a semicircular disc shape, two sides of the connecting block (92) are respectively provided with a groove (921) and a contact (922), the arc surface of the connecting block (92) abuts against the reset block (93), a raised head (912) positioned at the front end of the driving rod (91) abuts against the groove (921), and the contact (922) abuts against the lock tongue (95);
the locking device (9) further comprises a torsion spring (94), an elastic sheet (96) and a shifting block (97), the torsion spring (94) and the reset block (93) are coaxially arranged, two ends of the torsion spring (94) respectively abut against the reset block (93) and the shell (90), one end of the elastic sheet (96) is fixedly connected in the shell (90), the other end of the elastic sheet (96) abuts against the bolt (95), the shifting block (97) is slidably arranged on the shell (90), and the shifting block (97) abuts against the driving rod (91);
the spring bolt (95) are including locking lever (951), italic (952), tapered end (953) that connect gradually, locking lever (951) pin joint is in casing (90), contact (922) keep out on italic (952), tapered end (953) stretch into to be located in the draw-in groove on the periphery of disk body (23).
2. The height measuring instrument according to claim 1, characterized by further comprising a second laser head (22) and a photoelectric detector (5), wherein the photoelectric detector (5) is arranged on the support (1), the second laser head (22) is arranged on the periphery of the disc body (23), and the photoelectric detector (5) is used for receiving a laser signal emitted by the second laser head (22) to perform zero correction.
3. The height measuring instrument according to claim 1, wherein +6V is externally introduced from the power supply circuit (815) through the second interface (814), one path of the power supply circuit (815) includes a diode D1 and a regulator circuit, the a pole of the diode D1 is electrically connected to the second interface (814), and the K pole of the diode D1 is connected to an input of the regulator circuit and the first interface (811).
4. The height measuring instrument according to claim 3, wherein the other path of the power supply circuit (815) comprises a Schottky diode D2, a resistor R7, a farad capacitor C8, a resistor R8, a three-terminal adjustable shunt reference voltage source D4, a resistor R9 and a transistor Q1, the A pole of the Schottky diode D2 is electrically connected with the second interface (814), the K pole of the Schottky diode D2 is connected with the anode of a farad capacitor C8 through a resistor R7, the cathode of a farad capacitor C8 is grounded, the anode of a farad capacitor C8 is connected with the input of a constant current circuit, the input end of the constant current circuit is connected with the collector of a triode Q1 by a resistor R8, the other end of the resistor R8 is connected with the base of the triode Q1, and the cathode of the three-terminal adjustable shunt reference voltage source D4 is connected, the reference end of the three-terminal adjustable shunt reference voltage source is connected with the emitter of the triode Q1 and the resistor R9, and the anode of the three-terminal adjustable shunt reference voltage source is connected with the other end of the resistor R9 to be used as the output of the constant current circuit.
5. The height measuring instrument according to claim 4, wherein the power supply circuit (815) further comprises a Schottky diode D3, the A pole of the Schottky diode D3 is connected with the output of the constant current circuit, and the K pole of the Schottky diode D3 is connected with the K pole of the diode D1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710824185.1A CN107504904B (en) | 2017-09-13 | 2017-09-13 | Height measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710824185.1A CN107504904B (en) | 2017-09-13 | 2017-09-13 | Height measuring instrument |
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| CN107504904A CN107504904A (en) | 2017-12-22 |
| CN107504904B true CN107504904B (en) | 2020-07-17 |
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| CN201710824185.1A Active CN107504904B (en) | 2017-09-13 | 2017-09-13 | Height measuring instrument |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111678409B (en) * | 2020-06-16 | 2022-03-15 | 玉溪中烟种子有限责任公司 | Plant height acquisition device, method and system |
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