CN214844774U

CN214844774U - Automatic calibration test auxiliary device for spectrometer

Info

Publication number: CN214844774U
Application number: CN202122384364.2U
Authority: CN
Inventors: 姜登斌
Original assignee: Beijing Satellite Aerospace Technology Co ltd
Current assignee: Beijing Satellite Aerospace Technology Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2021-11-23
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses a spectrum appearance automatic calibration test auxiliary device, which comprises a motor, the epaxial installation reduction gear of the output of motor, install the driving gear on the output shaft of reduction gear, driving gear and drive gear, the driven gear meshing, install angle sensor on the driven gear, drive gear fixed mounting is on the upper portion of transmission back shaft, the bottom of transmission back shaft is rotatably connected with the bearing of fixing on the support, the top fixed mounting revolving stage of transmission back shaft, the center of revolving stage is equipped with the mount pad, the mount pad both sides are located symmetrically to two infrared sensor, including a motor, a speed reducer, angle sensor and infrared sensor are connected with the controller, two infrared sensor's axis is parallel mutually with the axis of installing the spectrum appearance on the mount pad. The utility model discloses an accurate calibration of spectrum appearance has ensured to carry out the smooth completion of testing to the test target, labour saving and time saving, and work efficiency is high.

Description

Automatic calibration test auxiliary device for spectrometer

Technical Field

The utility model relates to a controllable rotating equipment, specifically speaking relates to an auxiliary device that is used for spectrum appearance automatic calibration and test.

Background

The spectrometer needs to be calibrated before flame testing, and needs to be re-calibrated respectively when testing at different time periods. The conventional calibration method is to align the spectrometer to the low-temperature black body and the high-temperature black body in sequence to measure and record spectral data, and then compare the spectral data obtained by actual measurement with the standard spectral data of the low-temperature black body and the high-temperature black body, so as to complete calibration and ensure the accuracy of the subsequent spectrometer for collecting spectral data of a test target (flame). Further, in actual calibration, the spectrometer is usually mounted on a platform that can be manually adjusted in rotation angle, so that the spectrometer is aligned to the black body by manually rotating the platform. In practical implementation, the method for manually adjusting the rotation angle of the spectrometer wastes time and labor, is low in working efficiency, has low alignment accuracy of the spectrometer, cannot ensure accurate calibration of the spectrometer, and further cannot ensure smooth completion of a test target test in the back.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spectrum appearance automatic calibration test auxiliary device, its accurate calibration that has realized the spectrum appearance has ensured to carry out the smooth completion of testing to the test target, labour saving and time saving, and work efficiency is high.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a spectrum appearance automatic calibration test auxiliary device which characterized in that: the device comprises a motor, a reducer is installed on an output shaft of the motor, a driving gear is installed on an output shaft of the reducer, the driving gear is meshed with a transmission gear, a driven gear is meshed with the driven gear, an angle sensor is installed on the driven gear, the transmission gear is fixedly installed on the upper portion of a transmission supporting shaft, the bottom of the transmission supporting shaft is rotatably connected with a bearing fixed on a support, a rotating table is fixedly installed at the top of the transmission supporting shaft, a mounting seat is arranged at the center of the rotating table, two infrared sensors are symmetrically arranged on two sides of the mounting seat, the motor, the reducer, the angle sensor and the infrared sensors are connected with a controller, and the axes of the two infrared sensors are parallel to the axis of a spectrometer installed on the mounting seat.

The utility model has the advantages that:

the utility model discloses a spectrum appearance has ensured the smooth completion of testing the target in the calibration process to the accurate alignment of low, high temperature black body, and labour saving and time saving has improved work efficiency, is suitable for the popularization.

Drawings

Fig. 1 is a schematic diagram illustrating the components of an automatic calibration test auxiliary device according to a preferred embodiment of the present invention.

Fig. 2 is a schematic diagram illustrating the automatic calibration and test auxiliary device for spectrometer of the present invention.

Detailed Description

As shown in fig. 1 and 2, the automatic calibration test auxiliary device for spectrometer of the present invention comprises a motor 20, a reducer 30 is installed on an output shaft of the motor 20, a driving gear 40 is installed on an output shaft of the reducer 30, the driving gear 40 is engaged with a transmission gear 60 and a driven gear 50, an angle sensor 51 for measuring a rotation angle is installed on the driven gear 50, the driven gear 50 is disposed on a support seat 52, the transmission gear 60 is fixedly installed on an upper portion of a transmission support shaft 61, a bottom portion of the transmission support shaft 61 is rotatably connected with a bearing 62 fixed on a support seat 63, a rotary table 70 is fixedly installed on a top portion of the transmission support shaft 61, a mounting seat 72 is disposed in the center of the rotary table 70, two infrared sensors 80 are symmetrically disposed on two sides of the mounting seat 72, signal ports of the motor 20, the reducer 30, the angle sensor 51 and the infrared sensor 80 are respectively connected with corresponding ports of a controller 10, the axes of the two infrared sensors 80 and the axis of the spectrometer 90 mounted on the mounting seat 72 are parallel to each other, so that the infrared beams received by the two infrared sensors 80 and the infrared rays received by the spectrometer 90 mounted on the mounting seat 72 are parallel to each other.

Referring to fig. 1, the infrared sensor 80 is mounted in a cylindrical housing 81 made of metal, the metal of the housing 81 can be designed reasonably, for example, stainless steel, as long as the infrared beam is not allowed to pass through, and the housing 81 has only one opening for the infrared sensor 80 to receive the infrared beam. Further, the two infrared sensors 80 are provided with two housings 81 having openings facing in the same direction and in the same direction as the receiving end of the spectrometer 90.

In a practical design, the infrared sensor 80 may be slidably mounted on a rail 71 provided on the rotary table 70 via a slider (not shown in the figure), the rail 71 being provided through the center of the rotary table 70, wherein: after the position of the infrared sensor 80 is adjusted, the infrared sensor 80 is positioned on the rail 71 by abutting pins (not shown) mounted on the slider against the side walls of the rail 71.

Further, a scale (not shown) may be provided on the side wall of the rail 71 to ensure the accurate positioning of the two infrared sensors 80.

The utility model discloses in, the distance between two infrared sensor 80 should be confirmed according to the width of calibration target and the distance that spectrum appearance 90 and calibration target are at a distance from to make two infrared sensor 80 can aim at the both sides limit of calibration target respectively simultaneously, in order to realize accurate alignment, wherein, the calibration target is high temperature black body 110 or low temperature black body 120.

Further, preferably, the high temperature black body 110 and the low temperature black body 120 are symmetrically disposed on two sides of the test target 100, and the distances between the high temperature black body 110 and the spectrometer 90 are equal to each other, so as to reduce the calibration complexity and improve the calibration accuracy.

As shown in fig. 1, a touch screen 11 may be connected to the controller 10.

In the present invention, the controller 10 is used for receiving and recording the signal fed back by the angle sensor 51, receiving the signal fed back by the infrared sensor 80, and controlling the operation (forward and backward rotation, stop and rotation speed, etc.) of the motor 20 according to the signals of the angle sensor 51 and the infrared sensor 80. The controller 10 is a well known device in the art.

When the spectrometer 90 is used, the spectrometer 90 is installed on the installation seat 72, and the axes of the two infrared sensors 80 and the axis of the spectrometer 90 are ensured to be parallel. The spectrometer 90 is then directed at a test object (flame) 100 to be tested. Then, the high-temperature black body 110 and the low-temperature black body 120 (calibration target) with the same width are symmetrically arranged on two sides of the test target 100, and the distances between the high-temperature black body 110 and the low-temperature black body 120 and the spectrometer 90 are equal.

Therefore, according to the width of the calibration target and the distance between the spectrometer 90 and the calibration target, the positions of the two infrared sensors 80 are adjusted and positioned on the rail 71, so that the two infrared sensors 80 are symmetrically arranged on two sides of the spectrometer 90, and it is ensured that the two infrared sensors 80 can be simultaneously and respectively aligned with two sides of the calibration target to realize accurate alignment.

At this time, the spectrometer 90 is turned on, and calibration is started after the spectrometer 90 is turned on.

The controller 10 controls the motor 20 to rotate, when the rotary table 70 drives the two infrared sensors 80 to rotate to the two side edges of the low-temperature black body 120, the two infrared sensors 80 both feed back voltage signals to the controller 10, that is, the spectrometer 90 is aligned to the low-temperature black body 120 at this time, then, the controller 10 controls the motor 20 to stop rotating and delay for a period of time, and then, in this period of time, the spectrometer 90 starts to collect the spectral data of the low-temperature black body 120, so as to complete the calibration for the low-temperature black body 120. Meanwhile, the controller 10 receives a signal fed back by the angle sensor 51 to calculate the azimuth angle of the spectrometer 90 at this time through the proportional relationship between the driven gear 50 and the transmission gear 60.

Then the controller 10 controls the motor 20 to rotate again, when the rotary table 70 drives the two infrared sensors 80 to rotate to the two sides of the high temperature black body 110, the two infrared sensors 80 both feed back voltage signals to the controller 10, that is, the spectrometer 90 is aligned to the high temperature black body 110 at this time, then the controller 10 controls the motor 20 to stop rotating and delay for a period of time, and then, in this period of time, the spectrometer 90 starts to collect the spectral data of the high temperature black body 110, so as to complete the calibration for the high temperature black body 110. Meanwhile, the controller 10 receives a signal fed back by the angle sensor 51 to calculate the azimuth angle of the spectrometer 90 at this time through the proportional relationship between the driven gear 50 and the transmission gear 60.

After calibration is completed for both the low temperature black body 120 and the high temperature black body 110, the controller 10 controls the motor 20 to rotate according to the initial position of the rotating table 70 recorded by the angle sensor 51, so that the spectrometer 90 is aligned with the test target 100, at this time, the controller 10 controls the motor 20 to stop rotating and delay for a period of time, during which the spectrometer 90 starts to collect spectrum data for the test target 100, and then the spectrometer 90 completes spectrum test for the test target based on the spectrum data collected during calibration for the low temperature black body 120 and the high temperature black body 110, and the test result is accurate and reliable.

To better ensure the accuracy of the test, after the test target 100 is tested, the calibration may be performed once again for each of the low-temperature black body 120 and the high-temperature black body 110. At this time, the controller 10 can control the rotation of the motor 20 according to the previously obtained azimuth angle of the spectrometer 90 relative to the low temperature black body 120 and the high temperature black body 110.

The utility model has the advantages that:

The above description is the preferred embodiment of the present invention and the technical principle applied by the preferred embodiment, and for those skilled in the art, without departing from the spirit and scope of the present invention, any obvious changes based on the equivalent transformation, simple replacement, etc. of the technical solution of the present invention all belong to the protection scope of the present invention.

Claims

1. The utility model provides a spectrum appearance automatic calibration test auxiliary device which characterized in that: the device comprises a motor, a reducer is installed on an output shaft of the motor, a driving gear is installed on an output shaft of the reducer, the driving gear is meshed with a transmission gear, a driven gear is meshed with the driven gear, an angle sensor is installed on the driven gear, the transmission gear is fixedly installed on the upper portion of a transmission supporting shaft, the bottom of the transmission supporting shaft is rotatably connected with a bearing fixed on a support, a rotating table is fixedly installed at the top of the transmission supporting shaft, a mounting seat is arranged at the center of the rotating table, two infrared sensors are symmetrically arranged on two sides of the mounting seat, the motor, the reducer, the angle sensor and the infrared sensors are connected with a controller, and the axes of the two infrared sensors are parallel to the axis of a spectrometer installed on the mounting seat.

2. The spectrometer autocalibration test accessory as defined in claim 1, wherein:

the infrared sensor is arranged in a cylindrical outer cover made of metal materials, and the outer cover is only provided with an opening for receiving infrared beams by the infrared sensor.

3. The spectrometer autocalibration test accessory as defined in claim 2, wherein:

infrared sensor via the slider slidable install on the track that sets up on the revolving stage, the track runs through the center setting of revolving stage, wherein: after the position of the infrared sensor is adjusted, the infrared sensor is positioned on the track by enabling the pin arranged on the sliding block to abut against the side wall of the track.

4. The spectrometer autocalibration test accessory as defined in claim 3, wherein:

and a graduated scale is arranged on the side wall of the track.

5. The spectrometer automated calibration test aid of any one of claims 1 to 4, wherein:

the controller is connected with a touch display screen.