CN219607945U

CN219607945U - Automatic detection system of eddy current sensor

Info

Publication number: CN219607945U
Application number: CN202320125848.1U
Authority: CN
Inventors: 曹军华
Original assignee: JIANGYIN HUAHENG INSTRUMENT CO LTD
Current assignee: JIANGYIN HUAHENG INSTRUMENT CO LTD
Priority date: 2023-01-16
Filing date: 2023-01-16
Publication date: 2023-08-29
Anticipated expiration: 2033-01-16

Abstract

The utility model discloses an automatic detection system of an eddy current sensor, which comprises an automatic detection device, wherein the automatic detection device comprises a detection platform, a sensor mounting frame arranged on one side of the detection platform, an eddy current sensor and a ranging sensor which are arranged on the sensor mounting frame, a movable test target which is arranged in a sliding manner with the detection platform, and a driving mechanism arranged between the detection platform and the movable test target.

Description

Automatic detection system of eddy current sensor

Technical Field

The utility model relates to an automatic detection system of an eddy current sensor.

Background

At present, the current vortex sensor needs to detect the linearity of the current vortex sensor between delivery, and the current detection mode is as follows: and manually adjusting the position between the test disc and the eddy current sensor, measuring the distance by a micrometer, measuring the voltage by an external meter, obtaining data corresponding to the distance and the voltage, and calculating the linearity of the eddy current sensor.

The manual adjustment error is larger, the manual data recording is needed, the linear error is calculated manually, and the production and debugging efficiency is low.

For the above reasons, it is necessary to develop an automatic detection system for an eddy current sensor.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide an automatic detection system of an eddy current sensor, which improves the measurement accuracy and quickens the production debugging efficiency.

In order to achieve the technical effects, the technical scheme of the utility model is as follows: the utility model provides an electric vortex sensor automatic detection system, includes automatic checkout device, automatic checkout device include testing platform, set up in the sensor mounting bracket of testing platform one side, set up in electric vortex sensor and range sensor on the sensor mounting bracket, with testing platform slides the portable test target that sets up mutually, set up in testing platform with actuating mechanism between the portable test target.

The further improvement is that the driving mechanism comprises a stepping motor fixedly arranged on the detection platform and a screw rod rotationally connected with an output shaft of the stepping motor, and the movable test target is provided with a threaded hole or a threaded sleeve matched with the screw rod.

The distance measuring device is characterized by further comprising an MCU, a driver for driving the stepping motor and a sampling circuit for collecting the eddy current sensor, wherein the distance measuring sensor, the driver and the sampling circuit are all electrically connected with the MCU.

The further improvement is that a zeroing circuit, an amplifying circuit and a filtering circuit are respectively connected between the eddy current sensor and the sampling circuit in sequence.

Further improved is that the MCU is connected with a display.

Further improved is that the MCU is connected with an external memory.

The utility model has the advantages and beneficial effects that: the distance between the movable test target and the eddy current sensor is automatically adjusted through the driving mechanism, and the measurement accuracy is improved and the production and debugging efficiency is accelerated through automatic calculation of the MCU.

Drawings

FIG. 1 is a system block diagram of the present utility model;

FIG. 2 is a schematic diagram of an automatic detection device;

FIG. 3 is a circuit diagram of the MCU;

FIG. 4 is a circuit diagram of a driver;

FIG. 5 is a circuit diagram of a sampling circuit;

fig. 6 is an enlarged zeroing filter circuit diagram.

Wherein: 1. a detection platform; 2. a sensor mounting rack; 3. an eddy current sensor; 4. a movable test target; 5. a stepping motor; 6. and (5) a screw rod.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

As shown in fig. 2, a protection structure of a vibration sensor includes an automatic detection device, the automatic detection device includes a detection platform 1, a sensor mounting frame 2 disposed on one side of the detection platform 1, an eddy current sensor 3 and a distance measuring sensor disposed on the sensor mounting frame 2, a movable test target 4 slidably disposed on the detection platform 1, and a driving mechanism disposed between the detection platform 1 and the movable test target 4, preferably, the driving mechanism includes a stepper motor 5 fixedly disposed on the detection platform 1, a screw rod 6 rotationally connected with an output shaft of the stepper motor 5, and a threaded hole or a threaded sleeve matched with the screw rod 6 is disposed on the movable test target 4.

As shown in fig. 1, the system further includes an MCU, a driver for driving the stepper motor 5, and a sampling circuit for collecting the eddy current sensor 3, where the distance measuring sensor, the driver and the sampling circuit are all electrically connected with the MCU, fig. 3 is a circuit diagram of the MCU, fig. 4 is a circuit diagram of the driver, and fig. 5 is a circuit diagram of the sampling circuit.

Working principle: the distance measuring sensor can automatically transmit the distance of the movable test target to the MCU in real time, the sampling circuit can transmit the signal of the eddy current sensor to the MCU in real time, and in addition, the MCU can send a control signal to the driver to realize automatic control of the stepping motor, so that the automatic movement of the movable test target is realized.

As shown in fig. 2, in order to improve the detection accuracy, a zeroing circuit, an amplifying circuit, and a filtering circuit are sequentially connected between the eddy current sensor 3 and the sampling circuit, respectively, and fig. 6 is a circuit diagram of the above circuits.

In order to facilitate the inspection personnel to observe the data, the MCU is connected with a display.

In order to facilitate storage of the detection data, the MCU is connected with an external memory.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims

1. The automatic detection system for the eddy current sensor is characterized by comprising an automatic detection device, wherein the automatic detection device comprises a detection platform, a sensor mounting rack arranged on one side of the detection platform, an eddy current sensor and a distance measuring sensor arranged on the sensor mounting rack, a movable test target which is arranged in a sliding manner with the detection platform, and a driving mechanism arranged between the detection platform and the movable test target.

2. The automatic detection system of an eddy current sensor according to claim 1, wherein the driving mechanism comprises a stepping motor fixedly arranged on the detection platform, a screw rod rotatably connected with an output shaft of the stepping motor, and a threaded hole or a threaded sleeve matched with the screw rod is arranged on the movable test target.

3. The automatic detection system of an eddy current sensor according to claim 2, further comprising an MCU, a driver driving the stepper motor, a sampling circuit for collecting the eddy current sensor, wherein the distance measuring sensor, the driver and the sampling circuit are all electrically connected with the MCU.

4. The automatic detection system of an eddy current sensor according to claim 3, wherein a zeroing circuit, an amplifying circuit and a filtering circuit are sequentially connected between the eddy current sensor and the sampling circuit, respectively.

5. An eddy current sensor automatic inspection system according to claim 3, wherein the MCU is connected with a display.

6. An eddy current sensor automatic inspection system according to claim 3, wherein the MCU is connected with an external memory.