A rotating component speed and angle measurement device and method
By setting an angle measurement resistance and sensor on the rotating component, and detecting voltage and current, the problems of poor signal continuity and rotation limitation in the prior art are solved, and high-accurate speed and angle measurements are achieved.
Patent Information
- Application Number
- CN202110202052.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-02-23
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2041-02-23
AI Technical Summary
The prior art when measuring the rotation speed and angle of a rotating component, the signal continuity is poor and the rotation cannot be unlimited. It requires a fixed connection method, which limits the flexibility and accuracy of measurement.
The positive and negative electrodes are used to connect the conductors, rotating components, power supply and control systems, and the voltage and current are detected by angle measurement resistance and sensors to realize the rotation speed and angle measurement of the rotating components. The voltage sensor and current sensor and slider voltage are set on the conduction circuit. The sheet system and insulation materials ensure the continuity and accuracy of measurements.
The rotational speed and angle measurement of the rotating parts are achieved. The rotating parts can rotate unlimitedly, the continuousness of signal measurement is better, and the measurement accuracy is improved.
Smart Images
Figure CN112816731B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a rotation speed and angle measuring device and method, and in particular to a rotation speed and angle measuring device and method for a rotating part. Background Art
[0002] At present, the measurement method of the rotation angle of the rotating part adopts the pointer display or the conversion of the torque signal measured by the torque sensor. These measurement methods need to limit the rotation angle of the rotating shaft, and cannot exceed the area outside 360° without limit, nor can it rotate without limit in the direction less than 0°. When the rotating part needs to rotate along the central axis without limit in the area outside 0°-360°, it is necessary that the connection between the measuring device and the rotating part is not limited by a fixed connection method.
[0003] At present, the method of speed measurement is basically through infrared emission and detection. It is necessary to install measuring gears or holes on the rotating equipment, and convert the discontinuous measurement signal count value into a speed signal. The continuity of the measurement signal is not high, and it is difficult to achieve forward and reverse measurement. Summary of the invention
[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a device and method for measuring the rotational speed and angle of a rotating part. The device and method can measure the rotational speed and angle of a rotating part, and the continuity of the measurement signal is good.
[0005] To achieve the above-mentioned purpose, the rotating component speed and angle measuring device of the present invention comprises positive and negative connecting wires, a rotating component, a power supply and a control system;
[0006] An angle measuring resistor is arranged on the surface of the rotating component, wherein the angle measuring resistor includes a positive angle measuring resistor and a negative angle measuring resistor, wherein the 0° position of the positive angle measuring resistor is connected to the 0° position of the negative angle measuring resistor via a positive and negative connecting wire, the positive pole of the power supply is connected to the positive angle measuring resistor, and the negative pole of the power supply is connected to the negative angle measuring resistor, wherein the power supply, the positive angle measuring resistor, the negative angle measuring resistor and the positive and negative connecting wires form a conducting circuit;
[0007] The conduction circuit is provided with a voltage sensor for detecting the voltage between the positive and negative electrodes of the power supply and a current sensor for detecting the current in the conduction circuit, wherein the current sensor and the voltage sensor are connected to the control system.
[0008] The positive electrode of the power supply is connected to the positive angle measuring resistor through the first slider pressing sheet.
[0009] The negative electrode of the power supply is connected to the negative electrode angle measuring resistor through the second slider pressing sheet.
[0010] The positive electrode of the power supply is connected to the positive angle measuring resistor through the positive electrode terminal and the first slider pressing sheet.
[0011] The negative electrode of the power supply is connected to the negative electrode angle measuring resistor through the negative electrode terminal and the second slider pressing sheet.
[0012] Positive electrode insulating materials are provided at the 0° position and the 360° position of the positive electrode angle measuring resistor.
[0013] Negative electrode insulating materials are provided at the 0° position and the 360° position of the negative electrode angle measuring resistor.
[0014] The rotating part is a part that rotates along its central axis.
[0015] A method for measuring the rotation speed and angle of a rotating component comprises the following steps:
[0016] Assume that the total resistance of the positive angle measuring resistor and the negative angle measuring resistor in the 360° direction is R, the resistance of the positive and negative connecting wires is δ, the voltage measured by the voltage sensor is U, the current measured by the current sensor is I, and the rotation angle α of the rotating component 1 is:
[0017]
[0018] When it is necessary to measure the rotation speed of the rotating part during continuous rotation, obtain the variation curve of R when the rotating part rotates. Assuming that one fluctuation period of the variation curve is t, the rotation speed of the rotating part is 1 / t.
[0019] The current I measured by the current sensor is:
[0020]
[0021] The present invention has the following beneficial effects:
[0022] During specific operation of the rotating component speed and angle measuring device and method described in the present invention, a positive angle measuring resistor and a negative angle measuring resistor are provided on the rotating component. The speed and angle of the rotating component are measured by measuring the voltage between the positive and negative poles of the power supply and the current in the conduction circuit. The rotating component is not restricted when rotating, so continuous measurement of the signal is achieved, and the measurement accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a front view of the present invention;
[0024] Figure 2 A top view of the present invention;
[0025] Figure 3 It is an expanded view along the axis of the present invention;
[0026] Figure 4 is the electrical schematic diagram of the present invention;
[0027] Figure 5 It is a curve diagram of the relationship between resistance and time when rotating clockwise;
[0028] Figure 6 This is a graph showing the relationship between resistance and time when rotating counterclockwise.
[0029] Among them, 1 is a rotating part, 2 is an angle measuring resistor, 2-1 is a positive angle measuring resistor, 2-2 is a negative angle measuring resistor, 3 is a terminal, 3-1 is a positive terminal, 3-2 is a negative terminal, 4 is a slider pressing system, 4-1 is a first slider pressing sheet, 4-2 is a second slider pressing sheet, 5 is positive and negative connecting wires, 6 is a power supply, 7 is a current sensor, 8 is a voltage sensor, 9 is an insulating material, 9-1 is a positive insulating material, and 9-2 is a negative insulating material. DETAILED DESCRIPTION
[0030] The present invention is further described in detail below in conjunction with the accompanying drawings:
[0031] refer to Figures 1 to 4 The rotating component speed and angle measuring device of the present invention comprises a positive and negative connecting wire 5, a rotating component 1, a power supply 6 and a control system; the rotating component 1 is a component that performs rotational motion along the central axis, and an angle measuring resistor 2 is arranged on the surface of the rotating component 1, wherein the angle measuring resistor 2 comprises a positive angle measuring resistor 2-1 and a negative angle measuring resistor 2-2, wherein the 0° position of the positive angle measuring resistor 2-1 and the 0° position of the negative angle measuring resistor 2-2 are connected through the positive and negative connecting wire 5, the positive pole of the power supply 6 is connected to the positive angle measuring resistor 2-1, and the negative pole of the power supply 6 is connected to the negative angle measuring resistor 2-2, wherein the power supply 6, the positive angle measuring resistor 2-1, the negative angle measuring resistor 2-2 and the positive and negative connecting wire 5 form a conduction circuit; a voltage sensor 8 for detecting the voltage between the positive and negative poles of the power supply 6 and a current sensor 7 for detecting the current in the conduction circuit are arranged on the conduction circuit, wherein the current sensor 7 and the voltage sensor 8 are connected to the control system.
[0032] The present invention also includes a slider pressing system 4, which includes a first slider pressing system 4-1 and a second slider pressing system 4-2. The positive pole of the power supply 6 is connected to the positive angle measuring resistor 2-1 through the first slider pressing system 4-1; the negative pole of the power supply 6 is connected to the negative angle measuring resistor 2-2 through the second slider pressing system 4-2.
[0033] The present invention also includes a wiring terminal 3, wherein the wiring terminal 3 includes a positive wiring terminal 3-1 and a negative wiring terminal 3-2, and the positive electrode of the power supply 6 is connected to the positive angle measuring resistor 2-1 through the positive wiring terminal 3-1 and the first slider pressing plate 4-1; the negative electrode of the power supply 6 is connected to the negative angle measuring resistor 2-2 through the negative wiring terminal 3-2 and the second slider pressing plate 4-2.
[0034] The present invention also includes an insulating material 9, wherein the insulating material 9 includes a positive insulating material 9-1 and a negative insulating material 9-2, and the positive angle measuring resistor 2-1 is provided with the positive insulating material 9-1 at the 0° position and the 360° position; the negative angle measuring resistor 2-2 is provided with the negative insulating material 9-2 at the 0° position and the 360° position.
[0035] The method for measuring the rotation speed and angle of a rotating component of the present invention comprises the following steps:
[0036] Assume that the total resistance of the positive angle measuring resistor 2-1 and the negative angle measuring resistor 2-2 in the 360° direction is R, the resistance of the positive and negative connecting wires 5 is δ, the voltage measured by the voltage sensor 8 is U, the current measured by the current sensor 7 is I, and the rotation angle α of the rotating component 1 is:
[0037]
[0038]
[0039] When it is necessary to measure the rotation speed of the rotating component 1 when it rotates continuously, the variation curve of R when the rotating component 1 rotates is obtained. If one fluctuation period of the variation curve is t, the rotation speed of the rotating component 1 is 1 / t.
[0040] When it is necessary to measure the speed of the rotating component 1 when it rotates continuously, when it rotates clockwise, the resistance value in the conduction circuit fluctuates according to the curve described in 5, t is a fluctuation period, and the speed is 1 / t; when it rotates counterclockwise, the resistance value in the conduction circuit fluctuates according to the curve described in 5. Figure 6 The curve fluctuates, t is a fluctuation period, and the rotation speed is 1 / t.
Claims
1. A rotating component speed and angle measuring device, characterized in that: It comprises positive and negative connecting wires (5), a rotating component (1), a power supply (6) and a control system; An angle measuring resistor (2) is arranged on the surface of the rotating component (1), wherein the angle measuring resistor (2) comprises a positive angle measuring resistor (2-1) and a negative angle measuring resistor (2-2), wherein the 0° position of the positive angle measuring resistor (2-1) and the 0° position of the negative angle measuring resistor (2-2) are connected via a positive and negative connecting wire (5), the positive pole of a power supply (6) is connected to the positive angle measuring resistor (2-1), and the negative pole of the power supply (6) is connected to the negative angle measuring resistor (2-2), wherein the power supply (6), the positive angle measuring resistor (2-1), the negative angle measuring resistor (2-2) and the positive and negative connecting wire (5) form a conducting circuit; The conduction circuit is provided with a voltage sensor (8) for detecting the voltage between the positive and negative electrodes of the power supply (6) and a current sensor (7) for detecting the current in the conduction circuit, wherein the current sensor (7) and the voltage sensor (8) are connected to a control system; The positive electrode of the power supply (6) is connected to the positive electrode angle measuring resistor (2-1) via the first slider pressing sheet (4-1); The negative electrode of the power supply (6) is connected to the negative electrode angle measuring resistor (2-2) via the second slider pressing sheet (4-2); The positive electrode of the power supply (6) is connected to the positive electrode angle measuring resistor (2-1) via the positive electrode wiring terminal (3-1) and the first slider pressing sheet (4-1); The negative electrode of the power supply (6) is connected to the negative electrode angle measuring resistor (2-2) via the negative electrode terminal (3-2) and the second slider pressing sheet (4-2); Positive electrode insulating materials (9-1) are provided at the 0° position and the 360° position of the positive electrode angle measuring resistor (2-1); Negative electrode insulating materials (9-2) are provided at the 0° position and the 360° position of the negative electrode angle measuring resistor (2-2).
2. The rotating component speed and angle measuring device according to claim 1, characterized in that: The rotating component (1) is a component that performs a rotating motion along a central axis.
3. A method for measuring the rotation speed and angle of a rotating component, characterized in that: The rotating component speed and angle measuring device according to claim 1 comprises the following steps: Assume that the total resistance of the positive angle measuring resistor (2-1) and the negative angle measuring resistor (2-2) in the 360° direction is R, the resistance of the positive and negative connecting wires (5) is δ, the voltage measured by the voltage sensor (8) is U, the current measured by the current sensor (7) is I, and the rotation angle α of the rotating component (1) is: When it is necessary to measure the rotation speed of the rotating component (1) when it rotates continuously, a variation curve of R when the rotating component (1) rotates is obtained. Assuming that one fluctuation period of the variation curve is t, the rotation speed of the rotating component (1) is 1 / t.