High-precision accelerometer test platform

Abstract

The utility model discloses a high-precision accelerometer test platform, and belongs to the technical field of accelerometer test. A high-precision accelerometer test platform comprises a base and further comprises an accelerometer, the accelerometer is located above the base, a mounting plate is arranged below the accelerometer, a test plate is arranged below the mounting plate, a first groove, a second groove and a display panel are arranged in the base, the base comprises an upper base body and a lower base body, and the upper base body and the lower base body are arranged on the upper base body. A first supporting rod and a second supporting rod are arranged between the two bases. In order to solve the problem that the accuracy of the test result of the accelerometer is lower than that of the actual test result, an upper base and a lower base are arranged, the two bases are connected through a first supporting rod and a second supporting rod, and after the upper base is manually adjusted to be in a parallel state, the accelerometer is placed on the upper base to be tested. Therefore, it is ensured that the accelerometer is tested under the optimal condition, and the accuracy of the test result is improved.

Description

Technical Field

[0001] This utility model relates to the field of accelerometer testing technology, specifically a high-precision accelerometer testing platform. Background Technology

[0002] An accelerometer is an electronic device that measures and reports acceleration. It mainly consists of a sensing mass (also known as a sensitive mass), a support, a potentiometer, a spring, a damper, and a housing. In modern transportation systems, subways, as an important mode of urban transportation, carry countless people's daily commutes. However, the safety and comfort of train operation often depend on the accurate measurement of its accelerometer. As an important monitoring tool for train dynamic performance, the accelerometer plays an indispensable role. Through optimized design and an easy-to-operate platform, maintenance personnel can quickly configure test parameters, effectively shorten testing time, and reduce testing errors.

[0003] However, when a train is parked on the track, uneven ground or other factors often cause the train body to tilt, which directly affects the accuracy of the accelerometer measurement. Existing accelerometer testing for subway trains mainly relies on traditional measuring tools, such as triangular iron blocks. The measurement results of this method are easily affected by factors such as the train's non-level parking position. At the same time, existing testing equipment does not fully consider the importance of the accelerometer measurement environment and the train installation environment, resulting in a large error between the measurement results and the actual situation, and the accuracy of the accelerometer test results is relatively low compared with the actual situation. Therefore, it does not meet the existing needs, and a high-precision accelerometer testing platform is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision accelerometer testing platform. By setting up two bases, an upper and a lower base, and installing a first bubble level and a second bubble level inside each base, the two bases are connected by a first support rod and a second support rod. After manually adjusting the upper base to a parallel state, the accelerometer is placed on the upper base for testing, thereby ensuring that the accelerometer is tested under optimal conditions, which can solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision accelerometer testing platform, including a base and an accelerometer, the accelerometer being located above the base, a mounting plate being disposed below the accelerometer, and a test plate being disposed below the mounting plate. The base has a first groove, a second groove, and a display panel inside, and a first bubble level and a second bubble level are respectively disposed inside the first groove and the second groove. The base includes an upper base and a lower base, and a first support rod and a second support rod are disposed between the two bases. An angle ruler is disposed on one side of the test plate, a pin is disposed at one end of the test plate, a base plate is disposed below the test plate, and a limit screw is disposed between the base plate and the test plate.

[0006] Preferably, both ends of the accelerometer are provided with fixing plates, the mounting plate and the fixing plates are connected by a second screw, one end of the test plate is provided with a baffle, the baffle is perpendicular to the test plate, and the mounting plate is in contact with the baffle.

[0007] Preferably, one end of the test plate is connected to the base plate shaft, and the other end of the test plate has an elongated hole inside, with a pin located inside the elongated hole.

[0008] Preferably, the angle ruler has a straight ruler on its side, one end of which is connected to the angle ruler shaft. The angle ruler has a through hole inside, and a first screw is installed inside the through hole. One end of the first screw extends into the interior of the base. The straight ruler has a square hole inside, and one end of the pin is located inside the square hole.

[0009] Preferably, a sleeve is provided on the outside of the limiting screw, the sleeve is threadedly connected to the limiting screw, the sleeve is connected to the test plate shaft, and a support is provided at the lower end of the limiting screw, the support is connected to the limiting screw shaft, and the support is connected to the base plate shaft.

[0010] Preferably, the lower end of the first support rod is provided with a support plate, the upper end of the first support rod extends through the lower base to above the upper base, the side of the first support rod is provided with a threaded wall, and the outside of the first support rod is provided with a washer and a first nut.

[0011] Preferably, at least two second support rods are provided, both of which are located inside the second groove. A support plate is provided at the lower end of the second support rod, and a pad and a second nut are provided on the outside of the second support rod.

[0012] Preferably, the second nut is fitted onto the second support rod, the washer is located between the second nut and the base, and the upper end of the second support rod extends through the lower base to above the upper base.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model uses two bases, one upper and one lower. Inside each base are a first bubble level, a second bubble level, and a display panel. The two bases are connected by a first support rod and a second support rod. The lower base is located at the lower end of the first and second support rods, and the upper base is fixed to the middle of the first and second support rods by a nut. After the lower base is placed on a flat surface, the upper base is adjusted to a parallel state. The accelerometer is placed on top of the upper base for testing, thus ensuring that the accelerometer is tested under optimal conditions.

[0015] 2. This utility model features an angle gauge and a ruler on the side of the upper base, with the angle gauge and ruler shaft connected. In actual rail train acceleration measurement, there is an angle between the accelerometer mounting surface and the horizontal plane. To simulate the actual environment, during accelerometer testing, the accelerometer is placed on a test plate, and a pin is inserted into the test plate and ruler to connect them. Personnel can preset an angle to simulate the actual angle between the accelerometer mounting surface and the horizontal plane. At this time, personnel move the ruler until the scale on the angle gauge meets the preset angle, ensuring that the angle between the test plate and the horizontal plane meets the actual angle. This ensures that the accelerometer installation and testing positions are strictly consistent, improving the accuracy of the test. Attached Figure Description

[0016] Figure 1 This is the overall front view of the present invention;

[0017] Figure 2 This is a partial structural diagram of the angle ruler of this utility model;

[0018] Figure 3 This is a partial structural diagram of the test board of this utility model;

[0019] Figure 4 This is a partial structural diagram of the mounting plate of this utility model.

[0020] In the diagram: 1. Base; 101. First groove; 102. First bubble level; 103. Second groove; 104. Second bubble level; 105. Display panel; 2. Angle ruler; 201. Through hole; 202. First screw; 203. Ruler; 204. Square hole; 3. Accelerometer; 301. Mounting plate; 302. Fixing plate; 303. Second screw; 4. First support rod; 401. Washer; 402. First nut; 5. Second support rod; 501. Pad; 502. Second nut; 6. Test plate; 601. Long hole; 602. Baffle; 603. Base plate; 7. Limiting screw; 701. Sleeve; 702. Support; 8. Pin. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] To address the issue of low accuracy between accelerometer test results and actual values, please refer to [link / reference needed]. Figure 1-4 This utility model provides an embodiment of a high-precision accelerometer testing platform, including a base 1 and an accelerometer 3. The accelerometer 3 is located above the base 1, and a mounting plate 301 is provided below the accelerometer 3. A test plate 6 is provided below the mounting plate 301. The base 1 has a first groove 101, a second groove 103, and a display panel 105 inside. A first bubble level 102 and a second bubble level 104 are respectively provided inside the first groove 101 and the second groove 103. The base 1 includes an upper base 1 and a lower base 1. A first support rod 4 and a second support rod 5 are provided between the two bases 1. An angle ruler 2 is provided on one side of the test plate 6, and a pin 8 is provided at one end of the test plate 6. A base plate 603 is provided below the test plate 6, and a limit screw 7 is provided between the base plate 603 and the test plate 6.

[0023] The lower end of the first support rod 4 is provided with a support plate, and the upper end of the first support rod 4 extends through the lower base 1 to the top of the upper base 1. The side of the first support rod 4 is provided with a threaded wall, and a washer 401 and a first nut 402 are provided on the outside of the first support rod 4. At least two second support rods 5 are provided, and both second support rods 5 are located inside the second groove 103. The lower end of the second support rod 5 is provided with a support plate, and a pad 501 and a second nut 502 are provided on the outside of the second support rod 5. The second nut 502 is fitted on the second support rod 5, and the pad 501 is located between the second nut 502 and the base 1. The upper end of the second support rod 5 extends through the lower base 1 to the top of the upper base 1. After the personnel place the lower base 1 on a flat surface, the display panel 105 in the lower base 1 displays the levelness. Then, the upper base 1 is adjusted to a parallel state, and the accelerometer 3 is placed on the upper base 1 for testing, thereby ensuring that the accelerometer 3 is tested under optimal conditions, reducing testing errors, and further improving the accuracy of the accelerometer 3 test.

[0024] Both ends of the accelerometer 3 are equipped with fixing plates 302. The mounting plate 301 is connected to the fixing plates 302 by a second screw 303. One end of the test plate 6 is equipped with a baffle 602, which is perpendicular to the test plate 6. The mounting plate 301 contacts the baffle 602. One end of the test plate 6 is axially connected to the base plate 603. The other end of the test plate 6 has an elongated hole 601 inside, and a pin 8 is located inside the elongated hole 601. A ruler 203 is provided on the side of the angle ruler 2. One end of the ruler 203 is axially connected to the angle ruler 2. An internal through hole 201 is provided, and a first screw 202 is provided inside the through hole 201. One end of the first screw 202 extends into the interior of the base 1. A square hole 204 is provided inside the ruler 203. One end of the pin 8 is located inside the square hole 204. A sleeve 701 is provided outside the limiting screw 7. The sleeve 701 is threadedly connected to the limiting screw 7 and is shaft-connected to the test plate 6. A support 702 is provided at the lower end of the limiting screw 7. The support 702 is shaft-connected to the limiting screw 7 and is shaft-connected to the base plate 603.

[0025] In actual rail train acceleration measurement, there is an angle between the mounting surface of accelerometer 3 and the horizontal plane. To simulate the actual environment, during the test of accelerometer 3, accelerometer 3 is placed on test plate 6, and pin 8 is inserted into elongated hole 601 and square hole 204, so that test plate 6 and ruler 203 are connected. Personnel can preset an angle to simulate the actual angle between the mounting surface of accelerometer 3 and the horizontal plane. At this time, personnel move ruler 203 until the scale on angle ruler 2 meets the preset angle, so that the angle between test plate 6 and the horizontal plane meets the actual angle, thereby ensuring that the installation and test position of accelerometer 3 are strictly consistent, improving the accuracy of the test. At the same time, the position of test plate 6 is fixed by limiting screw 7. Personnel rotate limiting screw 7 to move sleeve 701 along limiting screw 7, thereby changing the angle between test plate 6 and the horizontal plane, realizing accurate measurement under different test conditions, and further improving the accuracy of accelerometer 3 testing.

[0026] Working principle: After placing the lower base 1 on a flat surface, the operator adjusts the upper base 1 to a parallel state, and places the accelerometer 3 on top of the upper base 1 for testing, thus ensuring that the accelerometer 3 is tested under optimal conditions. At the same time, in order to simulate the actual installation environment of the accelerometer 3, the accelerometer 3 is placed on the test plate 6, and the test plate 6 is connected to the ruler 203 through the pin 8. At this time, the operator moves the ruler 203 until the scale on the angle ruler 2 meets the actual installation angle, so that the angle between the test plate 6 and the horizontal plane meets the actual installation angle, thus ensuring that the installation and testing positions of the accelerometer 3 are strictly consistent, improving the accuracy of the test.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A high-precision accelerometer test platform comprising a base (1), characterized in that; Also include the accelerometer (3), the accelerometer (3) is located above the base (1), the lower surface of the accelerometer (3) is provided with mounting plate (301), the lower surface of mounting plate (301) is provided with test plate (6), the inside of the base (1) is provided with first recess (101), second recess (103) and display panel (105), the inside of first recess (101) and second recess (103) is provided with first bubble level (102) and second bubble level (104) respectively, the base (1) comprises upper base (1) and lower base (1), the first support rod (4) and the second support rod (5) are arranged between the two bases (1), one side of the test plate (6) is provided with angle ruler (2), one end of the test plate (6) is provided with latch (8), the lower surface of the test plate (6) is provided with bottom plate (603), the limit lead screw (7) is arranged between the bottom plate (603) and the test plate (6).

2. The high-precision accelerometer test platform of claim 1, wherein: Both ends of the accelerometer (3) are provided with fixed plate (302), the mounting plate (301) and the fixed plate (302) are connected through the second screw (303), one end of the test plate (6) is provided with baffle (602), the baffle (602) is perpendicular to the test plate (6), the mounting plate (301) is in contact with the baffle (602).

3. The high-precision accelerometer test platform of claim 1, wherein: One end of the test plate (6) is connected with the bottom plate (603), the other end of the test plate (6) is provided with long hole (601), the latch (8) is located in the long hole (601).

4. The high-precision accelerometer test platform of claim 1, wherein: The side surface of the angle ruler (2) is provided with ruler (203), one end of the ruler (203) is connected with the angle ruler (2), the inside of the angle ruler (2) is provided with through hole (201), the inside of the through hole (201) is provided with first screw (202), one end of the first screw (202) extends to the inside of the base (1), the inside of the ruler (203) is provided with square hole (204), one end of the latch (8) is located in the square hole (204).

5. The high-precision accelerometer test platform of claim 1, wherein: The outside of the limit lead screw (7) is provided with sleeve (701), the sleeve (701) is threadedly connected with the limit lead screw (7), the sleeve (701) is connected with the test plate (6), the lower end of the limit lead screw (7) is provided with support (702), the support (702) is connected with the limit lead screw (7), the support (702) is connected with the bottom plate (603).

6. The high-precision accelerometer test platform of claim 1, wherein: The lower end of the first support rod (4) is provided with support disc, the upper end of the first support rod (4) extends to the upper side of the upper base (1) through the lower base (1), the side surface of the first support rod (4) is provided with threaded wall, the outside of the first support rod (4) is provided with gasket (401) and first nut (402).

7. The high-precision accelerometer test platform of claim 1, wherein: The second support rod (5) is provided with at least two, the two second support rods (5) are located in the second recess (103), the lower end of the second support rod (5) is provided with support disc, the outside of the second support rod (5) is provided with gasket (501) and second nut (502).

8. The high-precision accelerometer test platform of claim 7, wherein: The second nut (502) is sleeved on the second supporting rod (5), the backing plate (501) is located between the second nut (502) and the base (1), and the upper end of the second supporting rod (5) extends through the lower base (1) to above the upper base (1).

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