Fixture for testing linearity of attack angle sensor

Abstract

The utility model relates to a linearity test fixture of an attack angle sensor. The linearity test fixture is characterized by comprising a dividing head test platform, a rotating stand, a conversion plate and a horizontal positioning frame, the attack angle sensor is provided with an outer ring and an inner core, the outer ring and the inner core are coaxially and rotatably matched, and the outer ring and the inner core respectively correspond to the rotor and the stator; the end of the inner core is provided with an output end or an output connector can be installed at the end of the inner core. According to the utility model, more types of products can be tested. And the test precision is improved in a theoretical mode. Physical scratches caused when a product is clamped are avoided, and the ejector rod which can be adjusted and used in multiple directions is provided, so that the requirements of more products are met.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures for linearity testing, in particular to a linearity testing fixture for an angle of attack sensor. Background Art

[0002] The traditional design concept of this type of linearity test fixture can only meet the clamping requirements of a certain product, and can only meet the measurement requirements of a single position during testing. The mounting blocks used to adjust the wind vane are all metal parts, which causes scratches on the product. At the same time, due to the length limitation of the product wind vane itself, it causes large measurement errors. The adjustment device for adjusting the wind vane position has a single function. Summary of the Invention

[0003] The purpose of the present invention is to provide a linearity test fixture for an angle of attack sensor, which can test a wider range of products, improve the test accuracy through theoretical methods, and avoid physical scratches caused by clamping the product.

[0004] The technical solution of the present invention is:

[0005] A linearity test fixture for an angle of attack sensor is provided, comprising a dividing head test platform 1, a rotating frame 2, a conversion plate 4, and a horizontal positioning frame 5. The angle of attack sensor comprises an outer ring and an inner core, the outer ring and the inner core being coaxially rotatably matched, the outer ring and the inner core corresponding to the rotor and the stator, respectively; an output terminal is provided at one end of the inner core, or an output connector can be installed at the end of the inner core;

[0006] The horizontal positioning frame 5 includes a bracket and a horizontal rod. The horizontal rod is adjustably arranged on the bracket and extends horizontally. The horizontal rod and the bracket can be fixed as a whole by fasteners.

[0007] A conversion plate is mounted on the front end of the horizontal rod, and the conversion plate has an interface, and the interface can be locked and matched with the output end or output connector of the angle of attack sensor 3, so that the inner core is limited and remains stationary;

[0008] The turntable 2 is fixed to the rotating shaft of the dividing head test platform 1 and rotates as a whole. It can be installed to drive the turntable to rotate at a set angle and measure the output signal of the angle of attack sensor 3. The adapter plate can limit the inner core to the zero position.

[0009] Furthermore, a level bubble is provided on the horizontal rod.

[0010] Furthermore, the horizontal rod and the bracket are fastened by adjusting screws.

[0011] Furthermore, the interface is a groove, the output end or output connector is a bump, and the bump is adapted to the shape of the groove. Still further, the groove is a tapered groove opening downward, and the bump is a bar with a tapered cross section.

[0012] Furthermore, the conversion plate is in sliding fit with the horizontal rod and is provided with a locking member capable of fastening the conversion plate to the horizontal rod.

[0013] The utility model can be used when clamping and adjusting the position of the wind vane during testing of its linearity.

[0014] The advantages of the present invention are that it can test a wider range of products, improves test accuracy through theoretical methods, avoids physical scratches caused by clamping products, and provides a mandrel that can be adjusted in multiple directions to meet the needs of a wider range of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a structural explosion diagram of the utility model;

[0017] Figure 3 It is a side view of the utility model;

[0018] Figure 4 It is a front view of the utility model;

[0019] Figure 5 It is a top view of the utility model;

[0020] Among them: dividing head test platform 1, rotating frame 2, angle of attack sensor 3, conversion plate 4, horizontal positioning frame 5. DETAILED DESCRIPTION

[0021] The disclosed examples will be described more fully with reference to the accompanying drawings, in which some (but not all) of the disclosed examples are shown. In fact, many different examples can be described and these examples should not be construed as limited to the examples set forth herein. Instead, these examples are described so that this disclosure will be thorough and complete and will fully convey the scope of the disclosure to those skilled in the art.

[0022] A linearity test fixture for an angle of attack sensor is provided, comprising a dividing head test platform 1, a rotating frame 2, a conversion plate 4, and a horizontal positioning frame 5; the angle of attack sensor comprises an outer ring and an inner core, the outer ring and the inner core are coaxially rotatable, the outer ring and the inner core correspond to the rotor and the stator respectively; the end of the inner core has an output end or an output connector can be installed at the end of the inner core

[0023] The horizontal positioning frame 5 includes a bracket and a horizontal rod. The horizontal rod is adjustably arranged on the bracket and extends horizontally. The horizontal rod and the bracket can be fixed as a whole by fasteners.

[0024] A conversion plate is mounted on the front end of the horizontal rod, and the conversion plate has an interface, and the interface can be locked and matched with the output end or output connector of the angle of attack sensor 3, so that the inner core is limited and remains stationary;

[0025] The turntable 2 is fixed to the rotating shaft of the dividing head test platform 1 and rotates as a whole. It can be installed to drive the turntable to rotate at a set angle and measure the output signal of the angle of attack sensor 3. The adapter plate can limit the inner core to the zero position.

[0026] A level bubble is provided on the horizontal rod.

[0027] The horizontal rod and the bracket are fastened by adjusting screws.

[0028] The interface is a groove, the output end or output connector is a convex block, and the convex block is adapted to the shape of the groove. Furthermore, the groove is a tapered groove opening downward, and the convex block is a bar with a tapered cross section.

[0029] The conversion plate is in sliding fit with the horizontal rod and is provided with a locking member, which can fasten the conversion plate to the horizontal rod.

[0030] The description of various advantageous arrangements has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the examples disclosed. Many modifications and variations will be apparent to those skilled in the art. In addition, different advantageous examples may describe different advantages compared to other advantageous examples. The selected example or examples are chosen and described to best illustrate the principles of the examples, their practical application, and to enable those skilled in the art to understand the disclosure with various examples with various modifications suitable for the particular use contemplated.

Claims

1. Linearity test fixture for angle of attack sensor, characterized by: The device comprises a dividing head test platform, a rotating frame, a conversion plate and a horizontal positioning frame; the angle of attack sensor comprises an outer ring and an inner core, the outer ring and the inner core are coaxially rotatable, the outer ring and the inner core correspond to the rotor and the stator respectively; the end of the inner core has an output end or an output connector can be installed at the end of the inner core; The horizontal positioning frame includes a bracket and a horizontal rod, wherein the horizontal rod is adjustably arranged on the bracket and extends horizontally; the horizontal rod and the bracket can be fixed as a whole by fasteners; A conversion plate is mounted on the front end of the horizontal rod, and the conversion plate has an interface, and the interface can be locked and matched with the output end or output connector of the angle of attack sensor, so that the inner core is limited and remains stationary; The turntable is fixed to the rotating shaft of the dividing head test platform and rotates as a whole. The set angle can be installed to drive the turntable to rotate and measure the output signal of the angle of attack sensor. The conversion plate can limit the inner core to the zero position.

2. The linearity test fixture for the angle of attack sensor according to claim 1, wherein: A level bubble is provided on the horizontal rod.

3. The linearity test fixture for the angle of attack sensor according to claim 1, wherein: The horizontal rod and the bracket are fastened by adjusting screws.

4. The linearity test fixture for an angle of attack sensor according to claim 1, wherein: The interface is a groove, and the output end or output connector is a convex block, and the convex block is adapted to the shape of the groove.

5. The linearity test fixture for the angle of attack sensor according to claim 4, wherein: The groove is a tapered groove opening downward, and the protrusion is a bar with a tapered cross section.

6. The linearity test fixture for an angle of attack sensor according to claim 1, wherein: The conversion plate is in sliding fit with the horizontal rod and is provided with a locking member, which can fasten the conversion plate to the horizontal rod.

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