Inclination angle measuring device based on resistance change principle

Abstract

The utility model provides an inclination angle measuring device based on a resistance change principle, and belongs to the technical field of angle measurement. The problems that an existing inclination angle measuring device is high in price, weak in anti-interference capacity and small in measuring range are solved. In the inclination angle measuring device based on the resistance change principle, a first slide way and a second slide way are fixedly arranged on two inner walls below a containing cavity respectively; the first resistor strip and the second resistor strip are fixedly arranged on the first slide way and the second slide way respectively; the first buoy and the second buoy are connected to the first slide way and the second slide way in a sliding mode respectively, the first buoy and the second buoy can slide on the first slide way and the second slide way respectively along with flowing of the non-conducting liquid in the containing cavity, the first resistor strip, the first ampere meter and the power source are connected in sequence, and the second resistor strip, the second ampere meter and the power source are connected in sequence. The device is high in measurement precision, simple in structure, low in cost, high in anti-interference capability and large in measurement range.

Description

Technical Field

[0001] The utility model belongs to the technical field of angle measurement, and in particular relates to an inclination angle measuring device based on the resistance change principle. Background Art

[0002] Most existing tilt angle measurements use high-precision electronic sensors. However, high-precision electronic sensors are often expensive, and their anti-interference ability is weak, and they are easily affected by the surrounding electromagnetic fields. Although the level without electronic components has strong anti-interference ability and a large measurement range, it lacks electronic display function and relies on naked eye observation, making it difficult to meet the requirements of high-precision measurement. Utility Model Content

[0003] In view of this, in order to solve the problems of the existing tilt angle measuring device being expensive, weak in anti-interference capability and small in measuring range, the utility model proposes a tilt angle measuring device based on the resistance change principle.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A device for measuring an inclination angle based on the resistance change principle, comprising:

[0006] An insulating shell, wherein a receiving cavity is provided in the insulating shell, the receiving cavity is triangular in shape with a pointed end downward, and a non-conductive liquid is contained in the receiving cavity;

[0007] A first slideway and a second slideway, wherein the first slideway and the second slideway are respectively fixedly arranged on two inner walls below the accommodating cavity;

[0008] A first resistor bar and a second resistor bar, the first resistor bar and the second resistor bar are fixedly arranged on the first slideway and the second slideway respectively, a first terminal is fixedly arranged at the lower end of the first resistor bar, and a second terminal is fixedly arranged at the lower end of the second resistor bar;

[0009] A first float and a second float, the first float and the second float are slidably connected to the first slide and the second slide respectively, the first float and the second float can slide on the first slide and the second slide respectively with the flow of the non-conductive liquid in the accommodating chamber, the first float is fixedly provided with a first probe and a third terminal, the second float is fixedly provided with a second probe and a fourth terminal, the first probe and the second probe are in contact with the first resistor bar and the second resistor bar respectively;

[0010] The first ammeter, the second ammeter and the power supply, the first terminal, the first ammeter and the positive pole of the power supply are connected in sequence through wires, the third terminal and the negative pole of the power supply are connected through wires, the second terminal, the second ammeter and the positive pole of the power supply are connected in sequence through wires, and the fourth terminal and the negative pole of the power supply are connected through wires.

[0011] As a preferred solution of the above-mentioned tilt angle measuring device based on the resistance change principle, the tilt angle measuring device based on the resistance change principle also includes a base, which is fixedly arranged on the bottom of the insulating shell, and the bottom surface of the base is a plane.

[0012] As a preferred solution of the above-mentioned tilt angle measuring device based on the resistance change principle, the tilt angle measuring device based on the resistance change principle further includes a chip, and the chip is arranged on the base.

[0013] As a preferred solution of the above-mentioned inclination angle measuring device based on the resistance change principle, the inclination angle measuring device based on the resistance change principle also includes a pillar, one end of which is fixedly connected to the base, and the other end of which is fixedly connected to the insulating shell.

[0014] As a preferred solution of the above-mentioned inclination angle measuring device based on the resistance change principle, a display screen is fixedly provided on the pillar.

[0015] As a preferred solution of the above-mentioned inclination angle measuring device based on the principle of resistance change, the inclination angle measuring device based on the principle of resistance change also includes a protective resistor, one end of the protective resistor is connected to the positive pole of the power supply through a wire, and the other end is connected to the first ammeter and the second ammeter through wires respectively.

[0016] As a preferred solution of the above-mentioned tilt angle measuring device based on the resistance change principle, the insulating shell is made of transparent material.

[0017] As a preferred solution of the above-mentioned inclination angle measuring device based on the resistance change principle, first baffles are fixedly provided at both ends of the first slideway, and second baffles are fixedly provided at both ends of the second slideway.

[0018] As a preferred solution of the above-mentioned inclination angle measuring device based on the principle of resistance change, the first float and the second float are respectively provided with a first slide groove and a second slide groove, the first slide groove is slidably mounted on the first slide groove, and the second slide groove is slidably mounted on the second slide groove.

[0019] As a preferred solution of the above-mentioned inclination angle measuring device based on the resistance change principle, the first float and the second float are made of plastic material.

[0020] Compared with the prior art, the beneficial effects of the tilt angle measuring device based on the resistance change principle provided by the utility model are:

[0021] The utility model provides an inclination angle measuring device based on the resistance change principle. When measuring the inclination angle, the bottom of the insulating shell is placed on the plane to be measured, and the insulating shell is tilted. The non-conductive liquid in the accommodating cavity can drive the positions of the first float and the second float to change, thereby changing the resistance value of the connected circuit, causing the current value to change, so that the inclination angle can be calculated through a mathematical formula according to the current value displayed by the first ammeter and the current value displayed by the second ammeter.

[0022] The tilt angle measurement device based on the resistance change principle has the following advantages: (1) high measurement accuracy: accurate tilt angle measurement is achieved by using the resistance change principle; (2) simple structure and low cost: simple mechanical and electronic components are used, which is easy to manufacture and has low cost; (3) strong anti-interference ability: insensitive to external electromagnetic interference; (4) large measurement range: capable of measuring larger tilt angles and is not limited by the dynamic range of traditional sensors. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0024] Figure 1 It is a structural schematic diagram of a tilt angle measuring device based on the resistance change principle provided by a specific embodiment of the utility model;

[0025] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0026] Figure 3 yes Figure 1 The enlarged view of point B in the middle;

[0027] Figure 4 It is a front view of a tilt angle measuring device based on the resistance change principle provided by a specific embodiment of the utility model;

[0028] Figure 5 It is a structural schematic diagram of a first float of an inclination angle measuring device based on the resistance change principle provided by a specific embodiment of the utility model;

[0029] Figure 6 It is a structural schematic diagram of a first probe and a third terminal of a tilt angle measuring device based on the resistance change principle provided by a specific embodiment of the utility model;

[0030] Figure 7 It is a circuit diagram of a tilt angle measuring device based on the resistance change principle provided by a specific embodiment of the utility model.

[0031] In the figure:

[0032] 1. Insulating shell; 2. Base; 3. Pillar; 4. Display screen; 5. First slide; 6. First resistor bar; 7. First float; 8. First terminal; 9. Third terminal; 10. First baffle; 11. Accommodating cavity; 12. First probe; 13. Power supply; 14. Chip. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely explain the technical solutions in the embodiments of the utility model. It should be noted that the embodiments and features in the embodiments of the utility model can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0037] See also Figure 1-7Description of this embodiment: The utility model provides an inclination angle measuring device based on the resistance change principle, the inclination angle measuring device based on the resistance change principle comprises an insulating shell 1, a first slide 5, a second slide, a first resistor bar 6, a second resistor bar, a first float 7, a second float, a first ammeter, a second ammeter and a power supply 13. A receiving chamber 11 is provided in the insulating shell 1. The receiving chamber 11 is triangular and has a pointed end facing downward. A non-conductive liquid is contained in the receiving chamber 11. The first slide 5 and the second slide are respectively fixedly arranged on two inner walls below the receiving chamber 11. The first resistor bar 6 and the second resistor bar are respectively fixedly arranged on the first slide 5 and the second slide. A first terminal 8 is fixedly arranged at the lower end of the first resistor bar 6, and a first terminal 8 is fixedly arranged at the lower end of the second resistor bar. The second terminal, the first float 7 and the second float are slidably connected to the first slide 5 and the second slide respectively, the first float 7 and the second float can slide on the first slide 5 and the second slide respectively as the non-conductive liquid flows in the accommodating chamber 11, the first float 7 is fixedly provided with a first probe 12 and a third terminal 9, the second float is fixedly provided with a second probe and a fourth terminal, the first probe 12 and the second probe are in contact with the first resistor bar 6 and the second resistor bar respectively, the first terminal 8, the first ammeter and the positive pole of the power supply 13 are connected in sequence through wires, the third terminal 9 is connected to the negative pole of the power supply 13 through wires, the second terminal, the second ammeter and the positive pole of the power supply 13 are connected in sequence through wires, and the fourth terminal is connected to the negative pole of the power supply 13 through wires.

[0038] It can be understood that the first resistor bar 6 and the first float 7 are equivalent to the first sliding resistor, and the second resistor bar and the second float are also equivalent to the second sliding resistor. The first sliding resistor and the second sliding resistor are connected in parallel, the first sliding resistor and the first ammeter are connected in series, and the second sliding resistor and the second ammeter are connected in series.

[0039] When measuring the tilt angle, the tilt angle measuring device based on the resistance change principle places the bottom of the insulating shell 1 on the plane to be measured, and the insulating shell 1 tilts. The non-conductive liquid in the accommodating chamber 11 can drive the positions of the first float 7 and the second float to change, thereby changing the resistance value of the connected circuit, causing the current value to change as well. Thus, the tilt angle can be calculated using a mathematical formula based on the current value displayed by the first ammeter and the current value displayed by the second ammeter.

[0040] The tilt angle measuring device based on the resistance change principle has high measurement accuracy and realizes accurate tilt angle measurement by using the resistance change principle; it has a simple structure and low cost, uses simple mechanical and electronic components, is easy to manufacture and has low cost; it has strong anti-interference ability, is insensitive to external electromagnetic interference, has a large measurement range, can measure larger tilt angles, and is not limited by the dynamic range of traditional sensors.

[0041] In this embodiment, the shape of the accommodating cavity 11 is an equilateral triangle, and the lower end of the first resistor bar 6 and the lower end of the second resistor bar are both located at the lowest end of the inner wall of the accommodating cavity 11. The mathematical formula used to calculate the tilt angle according to the current value displayed by the first ammeter and the current value displayed by the second ammeter is as follows:

[0042]

[0043] in: is the inclination angle of the plane to be measured; I2 is the current value displayed by the second ammeter; I1 is the current value displayed by the first ammeter.

[0044] Specifically, through the formula and The formula can be derived: , thus obtaining the formula: . Where: L1 is the length of the first resistor bar connected to the circuit; L2 is the length of the second resistor bar connected to the circuit; R1 is the resistance value of the first resistor bar connected to the circuit; R2 is the resistance value of the second resistor bar connected to the circuit; A is a constant.

[0045] Optionally, the tilt angle measuring device based on the resistance change principle further includes a base 2 , which is fixedly arranged at the bottom of the insulating housing 1 , and the bottom surface of the base 2 is a plane. A power supply 13 is arranged on the base 2 .

[0046] Optionally, the tilt angle measuring device based on the resistance change principle further includes a support 3 , one end of the support 3 is fixedly connected to the base 2 , and the other end of the support 3 is fixedly connected to the insulating shell 1 .

[0047] Optionally, a display screen 4 is fixedly provided on the support 3. The display screen 4 has an electronic display function, and the display screen 4 can display the measured inclination angle of the plane to be measured.

[0048] Optionally, the tilt angle measuring device based on the resistance change principle further includes a chip 14, which is disposed on the base 2. The chip 14 can calculate the tilt angle through a mathematical formula according to the current value displayed by the first ammeter and the current value displayed by the second ammeter, and transmit it to the display screen 4.

[0049] Optionally, the tilt angle measuring device based on the resistance change principle further includes a protective resistor, one end of which is connected to the positive electrode of the power source 13 through a wire, and the other end of which is connected to the first ammeter and the second ammeter through wires. The protective resistor can protect the circuit.

[0050] Optionally, the insulating housing 1 is made of a transparent material. In other embodiments, an observation window may be provided on the insulating housing 1 to facilitate observation of the situation in the accommodating cavity 11.

[0051] Optionally, first baffles 10 are fixedly disposed at both ends of the first slide 5, and second baffles are fixedly disposed at both ends of the second slide. The first baffle 10 can prevent the first float 7 from escaping from the first slide 5, and the second baffle can prevent the second float from escaping from the second slide.

[0052] Optionally, the first float 7 and the second float are provided with a first slide groove and a second slide groove respectively, the first slide groove is slidably mounted on the first slide 5, and the second slide groove is slidably mounted on the second slide. It can be understood that the first resistor bar 6 is embedded in the first slide 5, the first resistor bar 6 extends along the extension direction of the first slide 5, and the second resistor bar extends along the extension direction of the second slide. The first float 7 slides along the first slide 5 to change the length of the first resistor bar 6 connected to the circuit; the second float slides along the second slide to change the length of the second resistor bar connected to the circuit.

[0053] Optionally, the first float 7 and the second float are made of plastic material. The first float 7 and the second float are light, smooth, have low friction, and are easily driven by the non-conductive liquid.

[0054] Optionally, the wire passes through the insulating housing 1, and a sealing device is provided between the wire and the insulating housing 1; or, a wiring connector is used, the wiring connector is fixedly arranged on the insulating housing 1, and the wiring connector includes a first wiring terminal and a second wiring terminal, the first wiring terminal faces the inside of the accommodating cavity 11, and the second wiring terminal faces the outside of the insulating housing 1. The first wiring terminal is connected to the wire in the accommodating cavity 11, and the second wiring terminal is connected to the wire outside the insulating housing 1.

[0055] Obviously, the above disclosed embodiments of the utility model are only used to help explain the utility model. The embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. According to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. It is not necessary and impossible to list all the implementation methods here.

Claims

1. A device for measuring an inclination angle based on the principle of resistance change, characterized in that: include: An insulating shell (1), wherein a receiving cavity (11) is provided in the insulating shell (1), the receiving cavity (11) is triangular in shape with a tip facing downward, and a non-conductive liquid is contained in the receiving cavity (11); A first slideway (5) and a second slideway, wherein the first slideway (5) and the second slideway are respectively fixedly arranged on two inner walls below the accommodating cavity (11); A first resistor bar (6) and a second resistor bar, the first resistor bar (6) and the second resistor bar are fixedly arranged on the first slideway (5) and the second slideway respectively, a first terminal (8) is fixedly arranged at the lower end of the first resistor bar (6), and a second terminal is fixedly arranged at the lower end of the second resistor bar; A first float (7) and a second float, the first float (7) and the second float are slidably connected to the first slideway (5) and the second slideway respectively, the first float (7) and the second float can slide on the first slideway (5) and the second slideway respectively as the non-conductive liquid flows in the accommodating chamber (11), the first float (7) is fixedly provided with a first probe (12) and a third terminal (9), the second float is fixedly provided with a second probe and a fourth terminal, the first probe (12) and the second probe are in contact with the first resistor bar (6) and the second resistor bar respectively; The first ammeter, the second ammeter and the power supply (13), the first terminal (8), the first ammeter and the positive electrode of the power supply (13) are connected in sequence through wires, the third terminal (9) and the negative electrode of the power supply (13) are connected in sequence through wires, the second terminal, the second ammeter and the positive electrode of the power supply (13) are connected in sequence through wires, and the fourth terminal and the negative electrode of the power supply (13) are connected through wires.

2. The device for measuring the tilt angle based on the resistance change principle according to claim 1, characterized in that: It also comprises a base (2), which is fixedly arranged at the bottom of the insulating shell (1), and the bottom surface of the base (2) is a plane.

3. The device for measuring the tilt angle based on the resistance change principle according to claim 2, characterized in that: It also comprises a chip (14), wherein the chip (14) is arranged on the base (2).

4. The device for measuring the tilt angle based on the resistance change principle according to claim 2, characterized in that: It also comprises a support (3), one end of the support (3) being fixedly connected to the base (2), and the other end of the support (3) being fixedly connected to the insulating shell (1).

5. The device for measuring the tilt angle based on the resistance change principle according to claim 4, characterized in that: A display screen (4) is fixedly provided on the support column (3).

6. The device for measuring the tilt angle based on the resistance change principle according to claim 1, characterized in that: It also includes a protective resistor, one end of which is connected to the positive electrode of the power source (13) through a wire, and the other end of which is respectively connected to the first ammeter and the second ammeter through wires.

7. The device for measuring the tilt angle based on the resistance change principle according to claim 1, characterized in that: The insulating shell (1) is made of transparent material.

8. The device for measuring the tilt angle based on the resistance change principle according to claim 1, characterized in that: Both ends of the first slideway (5) are fixedly provided with first baffles (10), and both ends of the second slideway are fixedly provided with second baffles.

9. The device for measuring the tilt angle based on the resistance change principle according to claim 1, characterized in that: The first float (7) and the second float are respectively provided with a first slide groove and a second slide groove, the first slide groove is slidably mounted on the first slideway (5), and the second slide groove is slidably mounted on the second slideway.

10. The device for measuring the tilt angle based on the resistance change principle according to claim 1, characterized in that: The first float (7) and the second float are made of plastic material.

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