Movable simple eddy current sensor verification auxiliary platform

Abstract

The utility model belongs to the technical field of sensor verification, and discloses a movable simple eddy current sensor verification auxiliary platform, which comprises a bottom plate, a slide block I and a slide block II which are transversely arranged above the bottom plate in a sliding manner, a sensor seat is carried above the slide block I, a metal block is carried above the slide block II, and the metal block is transversely aligned with the sensor seat. The first sliding block is adjusted to slide through a first micrometer adjusting rod, and the second sliding block is adjusted to slide through a second micrometer adjusting rod. The device is simple and reasonable in structure, the sensor probe is placed on the sensor base, the first sliding block is adjusted through the first micrometer adjusting rod to determine the placement position of the sensor, the second sliding block is adjusted through the second micrometer adjusting rod to adjust the position of the metal block, the metal block simulates a metal object to be detected, and the metal object to be detected can be detected by adjusting the distance between the metal block and the sensor probe. The sensor can be verified by comparing the actual distance calculated by the micrometer adjusting rod with the distance measured by the sensor, the operation is simple and easy to understand, and the device is simple in structure and convenient to carry.

Description

Technical Field

[0001] The utility model belongs to the technical field of sensor calibration, and in particular relates to a movable simple eddy current sensor calibration auxiliary platform. Background Art

[0002] Eddy current sensor is a non-contact linear measurement tool. Eddy current sensor can accurately measure the static and dynamic relative displacement changes between the measured object (must be a metal conductor) and the probe end face. The principle of eddy current sensor is to accurately measure the relative position of the measured object (must be a metal conductor) and the probe end face through the principle of eddy current effect. It is characterized by good long-term working reliability, high sensitivity, strong anti-interference ability, non-contact measurement, fast response speed, and no influence from media such as oil and water. It is often used for long-term real-time monitoring of parameters such as shaft displacement, shaft vibration, and shaft speed of large rotating machinery. It can analyze the working condition and cause of failure of the equipment, and effectively protect and pre-maintain the equipment.

[0003] Eddy current sensors need to be calibrated regularly to detect faults in a timely manner and ensure the normal measurement accuracy of the sensor. In the past, professional calibration instruments were required for calibrating eddy current sensors. Not only was the operation complicated, but the calibration instruments were also not easy to carry and use. Utility Model Content

[0004] In order to overcome the above technical problems, the utility model provides a movable simple eddy current sensor calibration auxiliary platform.

[0005] The utility model adopts the following technical solutions:

[0006] A movable simple eddy current sensor calibration auxiliary platform comprises a base plate, a slider 1 and a slider 2 are arranged on the top of the base plate for transverse sliding, a sensor seat is carried on the top of the slider 1, a metal block is carried on the top of the slider 2, the metal block is laterally aligned with the sensor seat, the slider 1 is slidably adjusted by a micrometer adjustment rod 1, and the slider 2 is slidably adjusted by a micrometer adjustment rod 2.

[0007] Preferably, the micrometer adjustment rod 1 and the micrometer adjustment rod 2 are respectively arranged at the two ends above the bottom plate, and the micrometer adjustment rod 1 and the micrometer adjustment rod 2 are in the shape of movable parts of a micrometer, and the micrometer rods inside the two push rods are connected to the corresponding sliders.

[0008] Preferably, the bottom plate is provided with a locking mechanism for the slide block one on the side of the slide block one.

[0009] Preferably, the locking mechanism includes a base, the base is slidably connected to an abutment block, the abutment block is rotatably connected to a threaded rod, the threaded rod penetrates the base and is threadedly connected to the base, the outer end of the threaded rod is connected to a handle, and when the handle rotates the threaded rod forward, the threaded rod rotates inward and drives the abutment block so that the abutment block abuts against the slider.

[0010] Preferably, magnetic legs are provided at the bottom of the base plate.

[0011] Preferably, the sensor seat has a slot for placing the sensor.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. When the utility model is used, the sensor probe is placed on the sensor seat, and the placement position of the sensor is determined by adjusting the slider through the micrometer adjustment rod. The position of the metal block is adjusted by adjusting the slider through the micrometer adjustment rod. The metal block simulates the metal object to be tested. By adjusting the distance between the metal block and the sensor probe, the actual distance calculated by the micrometer adjustment rod and the distance measured by the sensor are compared to calibrate the sensor. The operation is simple and easy to understand, the device structure is simple, and it is easy to carry.

[0014] 2. The utility model provides magnetic legs at the bottom of the base plate, which is convenient for adsorbing the device onto corresponding iron equipment, making it easy to place and conduct field verification. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of the utility model.

[0016] Description of reference numerals:

[0017] 1 Magnetic support leg; 2 Bottom plate; 3 Handle; 4 Threaded rod; 5 Base; 6 Abutment block; 7 Thousandth adjustment rod one; 8 Slider one; 9 Sensor seat; 9-1 Card slot; 10 Slider two; 11 Metal block; 12 Thousandth adjustment rod two. DETAILED DESCRIPTION

[0018] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. Unless otherwise specified, the raw materials and equipment used can be purchased from the market or are commonly used in the art. The methods in the embodiments are conventional methods in the art unless otherwise specified. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0019] A movable and simple eddy current sensor calibration auxiliary platform comprises a bottom plate 2, a magnetic support leg 1 is arranged at the bottom of the bottom plate 2, the bottom end of the magnetic support leg 1 is magnetic, a slider 1 8 and a slider 2 10 are arranged above the bottom plate 2 for horizontal sliding, a sensor seat 9 is carried above the slider 1 8, the sensor seat 9 has a card slot 9-1 for placing the sensor, a metal block 11 is carried above the slider 2 10, the metal block 11 is aligned horizontally with the sensor seat 9, the slider 1 8 is adjusted to slide by a micrometer adjustment rod 1 7, the slider 2 10 is adjusted to slide by a micrometer adjustment rod 2 12, the micrometer adjustment rod 1 7 and the micrometer adjustment rod 2 12 are respectively arranged at the two ends above the bottom plate 2, the micrometer adjustment rod 1 7 and the micrometer adjustment rod 2 12 are in the shape of the movable part of a micrometer, that is, they include a micrometer rod, a fixed sleeve, a differential cylinder, and a knob, the micrometer rods inside the two push rods are connected to the corresponding sliders, and the micrometer rods can be driven to drive the sliders to move by rotating the rotating part.

[0020] The bottom plate 2 is provided with a locking mechanism for the slider 8 on the side of the slider 8, which is used to lock the position of the slider 8. The locking mechanism includes a base 5, the base 5 is slidably connected to the abutment block 6, the abutment block 6 is rotatably connected to the threaded rod 4, the threaded rod 4 penetrates the base 5 and is threadedly connected to the base 5, the outer end of the threaded rod 4 is connected to the handle 3, when the handle 3 is used to rotate the threaded rod 4 in the forward direction, the threaded rod 4 is screwed inward to drive the abutment block 6 so that the abutment block 6 abuts against the slider 8.

[0021] A movable and simple eddy current sensor calibration auxiliary platform, when used:

[0022] Place the device on the equipment through the magnetic support leg 1, place the sensor probe to be calibrated on the sensor seat 9 through the slot 9-1, and the probe is embedded in the slot 9-1. The slider 8 is adjusted by the thousandth adjustment rod 7 to determine the placement position of the sensor. Turn the handle 3 forward to drive the threaded rod 4 to screw inward and drive the abutment block 6 to abut the slider 8 to lock the slider 8. The metal block 11 simulates the metal object to be tested. The slider 10 is adjusted by the thousandth adjustment rod 12 to adjust the position of the metal block 11. By adjusting the distance between the metal block 11 and the sensor probe, the actual distance calculated by the two thousandth adjustment rod readings and the sensor measurement distance are compared to calibrate the sensor.

[0023] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the above embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A movable simple eddy current sensor calibration auxiliary platform, comprising a bottom plate, characterized in that: Slider 1 and slider 2 are arranged above the bottom plate for horizontal sliding. A sensor seat is mounted above slider 1, and a metal block is mounted above slider 2. The metal block is aligned horizontally with the sensor seat. The sliding of slider 1 is adjusted by a micrometer adjustment rod 1, and the sliding of slider 2 is adjusted by a micrometer adjustment rod 2.

2. The movable simple eddy current sensor calibration auxiliary platform according to claim 1 is characterized in that: The first and second micrometer adjustment rods are respectively arranged at the two ends above the bottom plate. The first and second micrometer adjustment rods are in the shape of movable parts of a micrometer. The micrometer rods inside the two push rods are connected to the corresponding sliders.

3. The movable simple eddy current sensor calibration auxiliary platform according to claim 1 is characterized in that: The bottom plate is provided with a locking mechanism for the slide block one on the side of the slide block one.

4. The movable simple eddy current sensor calibration auxiliary platform according to claim 3 is characterized in that: The locking mechanism includes a base, the base is slidably connected to an abutment block, the abutment block is rotatably connected to a threaded rod, the threaded rod penetrates the base and is threadedly connected to the base, the outer end of the threaded rod is connected to a handle, and when the handle rotates the threaded rod forward, the threaded rod rotates inward and drives the abutment block so that the abutment block abuts against the slider.

5. The movable simple eddy current sensor calibration auxiliary platform according to claim 1 is characterized in that: Magnetic legs are arranged at the bottom of the bottom plate.

6. The movable simple eddy current sensor calibration auxiliary platform according to claim 1 is characterized in that: The sensor seat has a slot for placing the sensor.

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