Helicopter three-axis atmospheric vector sensor omni-directional laser type calibrator

Abstract

The utility model relates to a helicopter three-axis atmosphere vector sensor omnidirectional laser type calibrator, which comprises a calibrator shell, a course indicator and a laser transmitter, the course indicator is arranged on the inner side of the calibrator shell, and the center of the bottom of the calibrator shell is connected with a plumb bob through a fine line. A circle of multiple laser emitters are arranged at the bottom of the calibrator shell along the periphery of the thin rope connecting position, multiple positioning grooves corresponding to the multiple laser emitters are formed in the plumb bob, a fixing rod is further horizontally arranged on one side of the calibrator shell, and the calibrator shell and the installation base rotate synchronously. According to the laser type calibrator, horizontal calibration and course calibration are combined together through the laser type calibrator, a course indicator is adopted for course calibration, and course numerical values are displayed in real time through a liquid crystal display. Laser beams are adopted for horizontal calibration, so that the precision and the efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of calibrator technology, specifically an omnidirectional laser calibrator for a helicopter three-axis atmospheric vector sensor. Background Technology

[0002] The mounting base for a helicopter's three-axis atmospheric sensor requires disassembly and reinstallation, or periodic calibration, including level and heading calibration, which constitutes three degrees of freedom. Any deviation will cause errors in airspeed and heading.

[0003] The existing calibration instrument has separate horizontal calibration and heading calibration equipment, and horizontal calibration and heading calibration cannot be performed simultaneously. If heading calibration is performed after horizontal calibration, it will affect the accuracy of the horizontal plane. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an omnidirectional laser calibrator for a helicopter three-axis atmospheric vector sensor, addressing the above-mentioned shortcomings.

[0005] To solve the above technical problems, the present invention adopts the following technical solution:

[0006] A helicopter three-axis atmospheric vector sensor omnidirectional laser calibrator includes a calibrator housing, a heading indicator, and laser emitters. The heading indicator, used to detect the heading of the three-axis atmospheric vector sensor mounting base, is located inside the calibrator housing. A plumb bob is connected to the center of the bottom of the calibrator housing via a thin wire. Multiple laser emitters are arranged around the bottom of the calibrator housing along the connection point of the thin wire. The plumb bob has multiple positioning slots corresponding to the laser emitters. A fixing rod is horizontally mounted on one side of the calibrator housing to fix the calibrator housing to the mounting base of the three-axis atmospheric vector sensor. The calibrator housing and the mounting base rotate synchronously. When the calibrator housing is horizontal and the plumb bob falls freely vertically, the laser emitted by the laser emitters coincides with the corresponding positioning slots.

[0007] Furthermore, the top of the calibrator housing is provided with a horizontally arranged horizontal bubble and a vertically arranged vertical bubble, which are used to assist the plumb bob and laser emitter in the horizontal calibration of the mounting base.

[0008] Furthermore, a display screen is provided on the side of the calibrator housing opposite to the fixed rod, and the display screen is electrically connected to the heading indicator via a wire.

[0009] Furthermore, a battery is disposed inside the calibrator housing, and the battery is electrically connected to the heading indicator, the display and the laser emitter respectively via wires.

[0010] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0011] This invention combines leveling and heading calibration using a laser-based calibrator. Heading calibration utilizes a heading indicator, with a liquid crystal display showing the heading value in real time. Leveling calibration employs a laser beam, thus improving accuracy and efficiency. Through the cooperation of a plumb bob and multiple laser emitters, precise leveling calibration can be performed, while the heading indicator accurately detects the heading of the mounting base, ensuring the accuracy of the heading calibration. The horizontal and vertical spirit levels on the top of the calibrator housing assist the plumb bob and laser calibrator in leveling the mounting base, further improving calibration reliability. The display screen on the left side of the calibrator housing shows the heading data detected by the heading indicator in real time, allowing operators to easily monitor the calibration status.

[0012] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0013] Figure 1 This is a top-view three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0015] Figure 3 This is a top sectional view of the present invention.

[0016] The attached diagram lists the components represented by each number as follows:

[0017] 1. Calibrator housing; 2. Heading indicator; 3. Laser emitter; 4. Plumb bob; 5. Positioning slot; 6. Fixing rod; 7. Lateral level bubble; 8. Longitudinal level bubble; 9. Display screen; 10. Battery. Detailed Implementation

[0018] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] like Figure 1-3 As shown, an omnidirectional laser calibrator for a helicopter three-axis atmospheric vector sensor includes a calibrator housing 1, a heading indicator 2, and a laser emitter 3. The heading indicator 2, used to detect the heading of the three-axis atmospheric vector sensor mounting base, is located inside the calibrator housing 1. A plumb bob 4 is connected to the center of the bottom of the calibrator housing 1 via a thin wire. Multiple laser emitters 3 are arranged around the bottom of the calibrator housing 1 along the connection point of the thin wire. Multiple positioning slots 5, corresponding to the laser emitters 3, are provided on the plumb bob 4. A fixing rod 6 is horizontally arranged on one side of the calibrator housing 1, used to fix the calibrator housing 1 to the mounting base of the three-axis atmospheric vector sensor. The calibrator housing 1 and the mounting base rotate synchronously. When the calibrator housing 1 is in a horizontal state and the plumb bob 4 falls freely vertically, the laser emitted by the laser emitters 3 coincides with the corresponding positioning slots 5.

[0021] In one embodiment, the top of the calibrator housing 1 is provided with a horizontally arranged horizontal bubble 7 and a vertically arranged vertical bubble 8. The horizontal bubble 7 and the vertical bubble 8 are used to assist the plumb bob 4 and the laser emitter 3 in the horizontal calibration of the mounting base.

[0022] In one embodiment, a display screen 9 is provided on the side of the calibrator housing 1 opposite to the fixing rod 6, and the display screen 9 is electrically connected to the heading indicator 2 via a wire.

[0023] In one embodiment, a battery 10 is provided inside the calibrator housing 1, and the battery 10 is electrically connected to the heading indicator 2, the display and the laser emitter 3 respectively via wires.

[0024] In this invention, the model number of the three-axis atmospheric vector sensor is qte-1190, and the model number of the heading indicator is JZ4-OTN3A.

[0025] The workflow of this utility model is as follows: The calibrator housing 1 is fixed to the mounting base of the helicopter's three-axis atmospheric vector sensor using a fixing rod 6, ensuring that the calibrator housing 1 rotates synchronously with the mounting base. The heading indicator 2 is activated, and the mounting base and calibrator housing 1 are rotated. The heading indicator 2 is observed; when its displayed heading matches the heading of the original heading indicator 2 on the helicopter, the heading calibration of the mounting base is considered complete. The plumb bob 4 is allowed to fall freely; at this time, the plumb bob 4 points vertically to the ground due to gravity. Multiple laser emitters 3 are activated, and the laser range emitted by the laser emitters 3 is observed to coincide with the positioning grooves 5 on the plumb bob 4. If the laser range emitted by all laser emitters 3 coincides with multiple positioning grooves 5, the horizontal calibration of the mounting base is considered complete. During the calibration process, the horizontal level bubble 7 and the vertical level bubble 8 on the top of the calibrator housing 1 can be used as references to assist in judging and adjusting the horizontal calibration. After calibration, the heading data displayed on the display screen 9 is recorded if necessary, and the mounting base is confirmed to be accurately calibrated.

[0026] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. An omnidirectional laser calibrator for a helicopter three-axis atmospheric vector sensor, characterized in that, The device includes a calibrator housing (1), a heading indicator (2), and a laser emitter (3). The calibrator housing (1) has a heading indicator (2) inside for detecting the heading of the three-axis atmospheric vector sensor mounting base. A plumb bob (4) is connected to the bottom center of the calibrator housing (1) by a thin line. A ring of multiple laser emitters (3) is arranged around the bottom of the calibrator housing (1) along the connection of the thin line. The plumb bob (4) has multiple positioning slots (5) corresponding to the multiple laser emitters (3). A fixing rod (6) is also horizontally arranged on one side of the calibrator housing (1). The fixing rod (6) is used to fix the calibrator housing (1) to the mounting base of the three-axis atmospheric vector sensor. The calibrator housing (1) and the mounting base rotate synchronously. When the calibrator housing (1) is in a horizontal state and the plumb bob (4) falls freely vertically, the laser emitted by the laser emitter (3) coincides with the corresponding positioning slot (5).

2. The omnidirectional laser calibrator for a helicopter three-axis atmospheric vector sensor according to claim 1, characterized in that, The top of the calibrator housing (1) is provided with a horizontally arranged horizontal bubble (7) and a vertically arranged vertical bubble (8). The horizontal bubble (7) and the vertical bubble (8) are used to assist the plumb bob (4) and the laser emitter (3) in the horizontal calibration of the mounting base.

3. The omnidirectional laser calibrator for a helicopter three-axis atmospheric vector sensor according to claim 1, characterized in that, A display screen (9) is provided on the side of the calibrator housing (1) opposite to the fixing rod (6), and the display screen (9) is electrically connected to the heading indicator (2) through a wire.

4. The omnidirectional laser calibrator for a helicopter three-axis atmospheric vector sensor according to claim 3, characterized in that, A battery (10) is provided inside the calibrator housing (1), and the battery (10) is electrically connected to the heading indicator (2), the display and the laser emitter (3) respectively via wires.

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