CN102706457A - Infrared temperature measuring device based on ultrasound ranging temperature compensation - Google Patents

Infrared temperature measuring device based on ultrasound ranging temperature compensation Download PDF

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CN102706457A
CN102706457A CN2012101638063A CN201210163806A CN102706457A CN 102706457 A CN102706457 A CN 102706457A CN 2012101638063 A CN2012101638063 A CN 2012101638063A CN 201210163806 A CN201210163806 A CN 201210163806A CN 102706457 A CN102706457 A CN 102706457A
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temperature
infrared
stepper motor
cpu
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CN102706457B (en
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朱武
桂媛
崔昊杨
汤乃云
张华富
马维亚
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Shanghai University of Electric Power
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Abstract

本发明涉及一种基于超声测距温度补偿的红外测温装置,云台机械结构上面装有水平方向和垂直方向步进电机、红外测温单元、超声测距模块、激光指示器,定位开关;云台机械结构通过激光指示器与控制系统与校准模块连接,校准参数存储模块、控制系统与校准模块、系统定位接口电路和超声测距模块分别与CPU连接,红外测温单元将测得的温度值信号传送到CPU,CPU再通过无线通信接口模块传送到上位机。本发明能够对分布在空间各个位置的待测点进行非接触在线测温,精确度高,测量速度快;结构设计合理,将红外测温仪与精确定位技术相结合,实现空间多点温度在线监测,节约了成本。

Figure 201210163806

The invention relates to an infrared temperature measuring device based on ultrasonic ranging temperature compensation. The mechanical structure of the platform is equipped with horizontal and vertical stepping motors, an infrared temperature measuring unit, an ultrasonic ranging module, a laser pointer, and a positioning switch; The mechanical structure of the pan/tilt is connected with the control system and the calibration module through the laser pointer. The calibration parameter storage module, the control system and the calibration module, the system positioning interface circuit and the ultrasonic distance measurement module are respectively connected with the CPU. The infrared temperature measurement unit will measure the temperature The value signal is transmitted to the CPU, and the CPU transmits it to the host computer through the wireless communication interface module. The invention can carry out non-contact online temperature measurement on the points to be measured distributed in various positions in the space, with high precision and fast measurement speed; the structure design is reasonable, and the infrared thermometer is combined with the precise positioning technology to realize the online multi-point temperature in space. Monitoring saves costs.

Figure 201210163806

Description

基于超声测距温度补偿的红外测温装置Infrared Temperature Measuring Device Based on Ultrasonic Ranging and Temperature Compensation

技术领域 technical field

本发明涉及一种电力设备中的红外测温装置,具体涉及一种非接触在线的超声测距温度补偿的红外测温装置。 The invention relates to an infrared temperature measuring device in electric power equipment, in particular to an infrared temperature measuring device for non-contact online ultrasonic distance measurement and temperature compensation.

背景技术 Background technique

温度是表示物体内部分子运动剧烈程度的物理量,是确定物体物质状态的重要参数之一。在电力系统中,大多数电气设备都运行在高电压大电流的状态下,在众多停电事故中,由于设备局部过热而导致停电检修经常发生。这不仅影响了设备的安全运行,威胁了公共安全,而且给供电用电方带来了重大的经济损失。如果能在事故发生的早期,提前进行预警并迅速采取措施,将能有效地避免此类事故的发生。因而及时对高压带电设备的各种连接点进行温度在线监测和控制是电网安全运行的重要保障。 Temperature is a physical quantity that indicates the intensity of molecular motion inside an object, and is one of the important parameters to determine the state of matter of an object. In the power system, most electrical equipments operate under the condition of high voltage and high current. In many power outage accidents, power outages and maintenance often occur due to local overheating of equipment. This not only affects the safe operation of the equipment and threatens public safety, but also brings significant economic losses to the power supply side. If early warning and quick measures can be taken in the early stage of the accident, it will be able to effectively avoid the occurrence of such accidents. Therefore, timely on-line temperature monitoring and control of various connection points of high-voltage live equipment is an important guarantee for the safe operation of the power grid.

目前,对于高压带电设备的测温,常用的一种方法是各电网仍在沿用的在被测点上贴以随温度变化而变色的蜡片,根据蜡片颜色变化和融化程度来推测接触点温度,这种方法主要依靠人的感官意识和实践经验来简单判断,准确度低,不能进行实时监测;另一种是将热敏电阻作为测温元件构成温度传感器,这种测温方法相比较蜡片而言,精度有所提高,但是安装过程繁琐,需要在每个测温的地方进行安装,不能实行在线监测。 At present, for the temperature measurement of high-voltage live equipment, a commonly used method is to paste wax sheets that change color with temperature changes on the measured points that are still used by various power grids, and infer the contact point according to the color change and melting degree of the wax sheets Temperature, this method mainly relies on people's sensory awareness and practical experience to simply judge, the accuracy is low, and real-time monitoring cannot be carried out; the other is to use a thermistor as a temperature measuring element to form a temperature sensor. As far as the wax sheet is concerned, the accuracy has been improved, but the installation process is cumbersome, and it needs to be installed at each temperature measurement place, and online monitoring cannot be implemented.

发明内容 Contents of the invention

本发明是要提供一种基于超声测距温度补偿的红外测温装置,该装置不仅能解决实时监测的技术问题,而且针对红外测温过程中,红外测温仪的准确度随测温仪到待测点距离远近而存在误差这一问题,采用超声测距技术在线获被测物体到红外测温仪的距离,根据在线测量结果,对测温仪测得的温度值进行补偿或修正,消除测温距离带来的附加误差,提高温度测量的准确度,将红外测温仪与精确定位技术相结合,实现空间多点温度在线监测,节约了成本。 The present invention is to provide an infrared temperature measuring device based on ultrasonic distance measurement and temperature compensation. The device can not only solve the technical problem of real-time monitoring, but also aim at the infrared temperature measurement process. There is an error in the distance of the point to be measured. Ultrasonic ranging technology is used to obtain the distance from the measured object to the infrared thermometer online. According to the online measurement result, the temperature value measured by the thermometer is compensated or corrected to eliminate The additional error brought by the temperature measurement distance improves the accuracy of temperature measurement, and combines the infrared thermometer with precise positioning technology to realize online monitoring of multi-point temperature in space and save costs.

本发明的技术方案是:一种基于超声测距温度补偿的红外测温装置,包括CPU、水平方向和垂直方向步进电机、红外测温单元、超声测距模块、无线通信接口、校准参数存储模块、控制系统与校准模块、系统定位接口电路,云台机械结构,其特点是: 云台机械结构上面装有水平方向和垂直方向步进电机、红外测温单元、超声测距模块、激光指示器,定位开关,云台机械结构通过激光指示器与控制系统与校准模块连接,用于在可见激光的指示下,通过控制系统与校准模块控制水平电机驱动器和垂直电机驱动器分别驱动水平方向和垂直方向步进电机对被测点进行空间定位,并把被测点的空间位置存储到校准参数存储模块中;校准参数存储模块、控制系统与校准模块、系统定位接口电路和超声测距模块分别与CPU连接,用于系统定位接口电路根据被测点的空间位置坐标进行定位搜索,并根据超声测距模块测得被测点到红外测温仪的距离值,对测得的温度值进行补偿和修正,消除测温距离带来的附加误差,红外测温单元将测得的温度值信号传送到CPU,CPU再通过无线通信接口模块传送到上位机。 The technical solution of the present invention is: an infrared temperature measuring device based on ultrasonic ranging temperature compensation, including a CPU, horizontal and vertical stepping motors, an infrared temperature measuring unit, an ultrasonic ranging module, a wireless communication interface, and a calibration parameter storage Module, control system and calibration module, system positioning interface circuit, and the mechanical structure of the pan/tilt. The device, the positioning switch, and the mechanical structure of the pan/tilt are connected with the control system and the calibration module through the laser pointer, and are used to control the horizontal motor driver and the vertical motor driver through the control system and the calibration module to drive the horizontal direction and the vertical direction respectively under the instruction of the visible laser. The direction stepping motor performs spatial positioning on the measured point, and stores the spatial position of the measured point in the calibration parameter storage module; the calibration parameter storage module, the control system and the calibration module, the system positioning interface circuit and the ultrasonic distance measurement module are respectively connected with CPU connection, used for system positioning interface circuit to perform positioning search according to the spatial position coordinates of the measured point, and according to the distance value from the measured point to the infrared thermometer measured by the ultrasonic distance measuring module, the measured temperature value is compensated and Correction, to eliminate the additional error caused by the temperature measurement distance, the infrared temperature measurement unit transmits the measured temperature value signal to the CPU, and the CPU transmits it to the host computer through the wireless communication interface module.

云台机械结构包括定位轴承、滚动轴承、环形垫板、上、下底座、侧板、支撑架、紧固板、紧固卡,上、下底座之间从下至上依次连接定位轴承、滚动轴承和环形垫板、上底座上面装有水平方向步进电机,水平方向步进电机通过步进电机紧固件与环形垫板和上底座固定连接,上底座上面两侧分别固定连接侧板,侧板上端外侧面上固定连接垂直方向步进电机,两个侧板上端之间连接有支撑架,支撑架两侧分别与垂直方向步进电机的转轴连接,支撑架上面中间通过紧固板固定连接红外测温单元的红外测温仪,旁边装有超声测距模块,红外测温仪上面用紧固卡固定连接激光指示器,支撑架侧板和上底座侧面上分别装有定位开关。 The mechanical structure of the pan/tilt includes positioning bearings, rolling bearings, annular backing plates, upper and lower bases, side plates, support frames, fastening plates, and fastening cards. The upper and lower bases are sequentially connected with positioning bearings, rolling bearings and annular The backing plate and the upper base are equipped with a horizontal stepping motor, and the horizontal stepping motor is fixedly connected with the annular backing plate and the upper base through the stepping motor fasteners. The outer surface is fixedly connected with the stepping motor in the vertical direction, and a support frame is connected between the upper ends of the two side plates. Both sides of the support frame are respectively connected with the rotating shaft of the stepping motor in the vertical direction. The infrared thermometer of the temperature unit is equipped with an ultrasonic distance measuring module next to it. The infrared thermometer is fixedly connected to the laser pointer with a fastening card, and the side plate of the support frame and the side of the upper base are respectively equipped with positioning switches.

定位开关为双金属片定位开关,中间设有绝缘层,两侧贴有金属片。 The positioning switch is a bimetal positioning switch with an insulating layer in the middle and metal sheets on both sides.

步进电机为步距角为7.5°的步进电机,减速比1/120,并装有1/4细分驱动器。 The stepper motor is a stepper motor with a step angle of 7.5°, a reduction ratio of 1/120, and a 1/4 subdivision driver.

本发明的有益效果是:本发明采用非接触式在线测温,并采用由步进电机控制的云台机械结构,保证了操作的安全性与便捷性;采用减速比与细分驱动技术相结合的步进电机、二次搜索技术、超声测距技术,提高精度的同时又缩短了测量时间;将红外测温仪与精确定位技术相结合,实现空间多点温度在线监测,节约了成本。 The beneficial effects of the present invention are: the present invention adopts non-contact online temperature measurement, and adopts the mechanical structure of the pan-tilt controlled by the stepping motor, which ensures the safety and convenience of operation; The advanced stepping motor, secondary search technology, and ultrasonic ranging technology improve the accuracy and shorten the measurement time; the combination of infrared thermometer and precise positioning technology realizes online monitoring of multi-point temperature in space and saves costs.

附图说明 Description of drawings

图1是本发明的控制结构框图; Fig. 1 is a control structure block diagram of the present invention;

图2是云台机械结构立体示意图; Fig. 2 is a three-dimensional schematic diagram of the mechanical structure of the cloud platform;

图3是云台机械结构的分解图; Fig. 3 is an exploded view of the mechanical structure of the cloud platform;

图4是定位开关结构剖视图。 Fig. 4 is a cross-sectional view of the positioning switch structure.

具体实施方式 Detailed ways

下面结合附图与实施例对本发明作进一步说明。 The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

如图1至图3所示,本发明的基于超声测距温度补偿的红外测温装置,包括CPU、水平方向和垂直方向步进电机8,16、红外测温单元、超声测距模块、无线通信接口、校准参数存储模块、控制系统与校准模块、系统定位接口电路,云台机械结构等。 As shown in Figures 1 to 3, the infrared temperature measuring device based on ultrasonic ranging temperature compensation of the present invention includes CPU, horizontal and vertical stepping motors 8, 16, infrared temperature measuring unit, ultrasonic ranging module, wireless Communication interface, calibration parameter storage module, control system and calibration module, system positioning interface circuit, PTZ mechanical structure, etc.

云台机械结构上面装有水平方向和垂直方向步进电机8,16、红外测温单元、超声测距模块、激光指示器12,定位开关9,云台机械结构通过激光指示器12与控制系统与校准模块连接,用于在可见激光的指示下,通过控制系统与校准模块控制水平电机驱动器和垂直电机驱动器分别驱动水平方向和垂直方向步进电机对被测点进行空间定位,并把被测点的空间位置存储到校准参数存储模块中;校准参数存储模块、控制系统与校准模块、系统定位接口电路和超声测距模块分别与CPU连接,用于系统定位接口电路根据被测点的空间位置坐标进行定位搜索,并根据超声测距模块测得被测点到红外测温仪的距离值,对测得的温度值进行补偿和修正,消除测温距离带来的附加误差,红外测温单元将测得的温度值信号通过RS-232通信方式传送到CPU,CPU再通过无线通信接口模块传送到上位机。 Horizontal and vertical stepping motors 8, 16, infrared temperature measurement unit, ultrasonic distance measuring module, laser pointer 12, positioning switch 9 are installed on the mechanical structure of the cloud platform, and the mechanical structure of the cloud platform communicates with the control system through the laser pointer 12 Connected with the calibration module, it is used to spatially locate the measured point through the control system and the calibration module to control the horizontal motor driver and the vertical motor driver to drive the horizontal and vertical stepping motors respectively under the instruction of the visible laser The spatial position of the point is stored in the calibration parameter storage module; the calibration parameter storage module, the control system and the calibration module, the system positioning interface circuit and the ultrasonic distance measurement module are respectively connected to the CPU, and the system positioning interface circuit is used for the spatial position of the measured point The coordinates are used to locate and search, and the distance value from the measured point to the infrared thermometer is measured by the ultrasonic ranging module, and the measured temperature value is compensated and corrected to eliminate the additional error caused by the temperature measurement distance. The infrared temperature measurement unit The measured temperature value signal is transmitted to the CPU through RS-232 communication, and the CPU transmits it to the host computer through the wireless communication interface module.

如图2,3所示,云台机械结构包括定位轴承2、滚动轴承3、环形垫板4、上、下底座5,1、侧板6、支撑架7、紧固板11、紧固卡13,上、下底座5,1之间从下至上依次连接定位轴承2、滚动轴承3和环形垫板4、上底座5上面装有水平方向步进电机8,水平方向步进电机8通过步进电机紧固件15与环形垫板4和上底座5固定连接,上底座5上面两侧分别固定连接侧板6,侧板6上端外侧面上固定连接垂直方向步进电机16,两个侧板6上端之间连接有支撑架7,支撑架7两侧分别与垂直方向步进电机16的转轴连接,支撑架7上面中间通过紧固板11固定连接红外测温单元的红外测温仪10,旁边装有超声测距模块14,红外测温仪10上面用紧固卡13固定连接激光指示器12,支撑架7侧板和上底座5侧面上分别装有定位开关9。 As shown in Figures 2 and 3, the mechanical structure of the platform includes positioning bearings 2, rolling bearings 3, annular backing plates 4, upper and lower bases 5, 1, side plates 6, support frames 7, fastening plates 11, and fastening clips 13 , between the upper and lower bases 5 and 1, the positioning bearing 2, the rolling bearing 3 and the annular backing plate 4 are sequentially connected from bottom to top, and the upper base 5 is equipped with a horizontal stepping motor 8, and the horizontal stepping motor 8 passes through the stepping motor The fastener 15 is fixedly connected with the annular backing plate 4 and the upper base 5, and the two sides of the upper base 5 are respectively fixedly connected with the side plates 6, and the outer surface of the upper end of the side plate 6 is fixedly connected with the stepping motor 16 in the vertical direction, and the two side plates 6 A support frame 7 is connected between the upper ends, and the two sides of the support frame 7 are respectively connected with the rotating shaft of the stepping motor 16 in the vertical direction. An ultrasonic distance measuring module 14 is installed, and the infrared thermometer 10 is fixedly connected to the laser pointer 12 with a fastening card 13, and a positioning switch 9 is installed on the side plate of the support frame 7 and the side plate of the upper base 5 respectively.

由于滚动轴承3的滑动作用,上底座5上的步进电机8可控制上底座5在水平方向上转动、侧板6上的步进电机8控制装有红外测温仪10的支撑架7在垂直方向上转动,从而实现支撑架7在空间内转动,将红外测温仪10、激光指示器12、超声测距模块14安装在支撑架7上,即可实现在空间内对待测物体进行测温。水平方向和垂直方向步进电机8,16为步距角为7.5°的步进电机,减速比1/120,并装有1/4细分驱动器。 Due to the sliding effect of the rolling bearing 3, the stepper motor 8 on the upper base 5 can control the upper base 5 to rotate in the horizontal direction, and the stepper motor 8 on the side plate 6 controls the support frame 7 equipped with the infrared thermometer 10 to rotate vertically. direction, so as to realize the rotation of the support frame 7 in the space, install the infrared thermometer 10, the laser pointer 12, and the ultrasonic distance measuring module 14 on the support frame 7, and then realize the temperature measurement of the object to be measured in the space . Horizontal and vertical stepping motors 8 and 16 are stepping motors with a step angle of 7.5°, a reduction ratio of 1/120, and a 1/4 subdivision driver.

如图4所示,定位开关9为双金属片定位开关,中间设有绝缘层,两侧贴有金属片。 As shown in FIG. 4 , the positioning switch 9 is a bimetal positioning switch with an insulating layer in the middle and metal sheets on both sides.

本发明的具体实施:首先搭建云台机械结构,在可见激光的指示下,通过校准板控制水平电机驱动器和垂直电机驱动器对被测点进行空间定位,把被测点的空间位置存储到校准参数存储模块中, CPU控制系统定位接口电路根据这些点的坐标,进行一周的定位搜索,在搜索过程中,运用精确定位技术准确定位,根据超声测距技术测得点到红外测温仪的距离,根据距离远近,对测得的温度值进行补偿与自校准,搜索完成后,红外测温单元将温度值通过RS-232通信方式传送到CPU,CPU再通过无线通信接口模块传送到上位机,过程结束之后,可通过控制系统与校准模块对系统定位进行校准。 The specific implementation of the present invention: first build the mechanical structure of the pan-tilt, under the instruction of the visible laser, control the horizontal motor driver and the vertical motor driver to spatially locate the measured point through the calibration board, and store the spatial position of the measured point in the calibration parameters In the storage module, the positioning interface circuit of the CPU control system performs a one-week positioning search according to the coordinates of these points. The distance is far and near, and the measured temperature value is compensated and self-calibrated. After the search is completed, the infrared temperature measurement unit transmits the temperature value to the CPU through the RS-232 communication method, and the CPU transmits the temperature value to the host computer through the wireless communication interface module. The process ends Afterwards, the system positioning can be calibrated through the control system and the calibration module.

本发明在步进电机的选择时,选用带减速比的步进电机,运用细分驱动技术,提高测量精度,在本发明中,采用步距角为7.5°的步进电机,减速比1/120,并采用1/4细分驱动器,则精度可达0.015°,若测8m远处的待测物体,每给一个脉冲,测温仪旋转2mm的弧度,定位精准,误差小;采用超声测距技术在线获 When the present invention selects the stepper motor, selects the stepper motor with reduction ratio for use, uses subdivision drive technology, improves measurement accuracy, in the present invention, adopts the stepper motor that step angle is 7.5 °, reduction ratio 1/ 120, and using a 1/4 subdivision driver, the accuracy can reach 0.015°. If the object to be tested is measured at a distance of 8m, each time a pulse is given, the thermometer rotates an arc of 2mm, with accurate positioning and small error; technology online

得被测物体到红外测温仪的距离,根据在线测量结果,对测温仪测得的温度值进行补偿或修正,消除测温距离带来的附加误差,提高温度测量的准确度;在定位搜索的过程中,采用二次搜索技术,即先使步进电机快速运转到待测物体,然后用CPU控制细分驱动器,增大细分数,进一步提高定位精度,在微小的空间范围内多次测量被测物体的温度,并搜索求得最大的温度值,即作为待测点的温度,提高系统的测温准确度;系统采用双金属片定位开关,当系统复位时,旋转机构带动L型的金属杆向起始位置运动,当金属杆接触上开关两侧的金属片,开关闭合,控制系统停止电机继续转动,此时记为系统转动的起点,这种特殊的结构消除了常用开关带来的行程误差,系统复位的重复性能好,提高系统的定位精度。 Get the distance from the measured object to the infrared thermometer, and compensate or correct the temperature value measured by the thermometer according to the online measurement results, eliminate the additional error caused by the temperature measurement distance, and improve the accuracy of temperature measurement; in positioning In the search process, the secondary search technology is adopted, that is, the stepper motor is quickly rotated to the object to be measured, and then the CPU is used to control the subdivision driver to increase the number of subdivisions and further improve the positioning accuracy. Measure the temperature of the object to be measured once, and search for the maximum temperature value, that is, as the temperature of the point to be measured, to improve the temperature measurement accuracy of the system; the system uses a bimetal positioning switch. When the system is reset, the rotating mechanism drives the L The metal rod of the type moves to the starting position. When the metal rod touches the metal sheets on both sides of the switch, the switch is closed, and the control system stops the motor to continue to rotate. At this time, it is recorded as the starting point of the system rotation. This special structure eliminates the common switch The stroke error caused by the system has good repeatability of system reset and improves the positioning accuracy of the system.

本发明能够对分布在空间各个位置的待测点进行非接触在线测温,精确度高,测量速度快;结构设计合理,将红外测温仪与精确定位技术相结合,实现空间多点温度在线监测,节约了成本。 The invention can carry out non-contact online temperature measurement on the points to be measured distributed in various positions in the space, with high precision and fast measurement speed; the structure design is reasonable, and the infrared thermometer is combined with the precise positioning technology to realize the online multi-point temperature in space. Monitoring saves costs.

Claims (4)

1. infrared temperature measurement apparatus based on the supersonic sounding temperature compensation; Comprise CPU, horizontal direction and vertical direction stepper motor (8; 16), infrared measurement of temperature unit, supersonic sounding module, wireless communication interface, calibration parameter memory module, control system and calibration module, system's locating interface circuit and The Cloud Terrace physical construction; It is characterized in that: the stepper motor (8 that is used for horizontal direction and vertical direction adjustment is housed respectively above the said The Cloud Terrace physical construction; 16), infrared measurement of temperature unit, supersonic sounding module, laser designator (12) and positioning switch (9); Said The Cloud Terrace physical construction is connected with calibration module with control system through laser designator (12), is used under the indication of visible laser, drives horizontal direction and vertical direction stepper motor (8 respectively through control system and calibration module controlling level motor driver and motor vertical driver; 16) space orientation is carried out in the measured point, and store the locus of measured point in the calibration parameter memory module into; Said calibration parameter memory module, control system are connected with CPU respectively with the supersonic sounding module with calibration module, system's locating interface circuit; Be used for system's locating interface circuit and position search according to the locus coordinate of measured point; And record the measured point to the distance value of infrared thermometer according to the supersonic sounding module; The temperature value that records is compensated and revises; Eliminate the additive error that the thermometric distance is brought, the infrared measurement of temperature unit is sent to CPU with the temperature value signal that records, and CPU is sent to host computer through Wireless communication interface module again.
2. the infrared temperature measurement apparatus based on the supersonic sounding temperature compensation according to claim 1; It is characterized in that: said The Cloud Terrace physical construction comprises alignment bearing (2), rolling bearing (3), annular backing plate (4), upper and lower base (5; 1), side plate (6), bracing frame (7), binding (11), fastening card (13); Said upper and lower base (5; 1) connects alignment bearing (2), rolling bearing (3) and annular backing plate (4) between from bottom to up successively, vertical direction stepper motor (15) is housed above the upper bed-plate (5); Horizontal direction stepper motor (8) is fixedly connected with upper bed-plate (5) with annular backing plate (4) through stepper motor securing member (15); Both sides are fixedly connected side plate (6) respectively above the upper bed-plate (5); Be fixedly connected vertical direction stepper motor (8) on the lateral surface of side plate (6) upper end, two side plates (6) are connected with bracing frame (7) between the upper end, and bracing frame (7) both sides are connected with the rotating shaft of vertical direction stepper motor (16) respectively; Pass through the infrared thermometer (10) that binding (11) is fixedly connected the infrared measurement of temperature unit in the middle of above the bracing frame (7); Supersonic sounding module (14) is equipped with on the next door, is fixedly connected laser designator (12) with fastening card (13) above the infrared thermometer (10), on bracing frame (7) side plate and upper bed-plate (5) side positioning switch (9) is housed respectively.
3. the infrared temperature measurement apparatus based on the supersonic sounding temperature compensation according to claim 1 is characterized in that: said positioning switch (9) is the bimetallic strip positioning switch, and the centre is provided with insulation course (20), both sides metal clad sheets (21).
4. the infrared temperature measurement apparatus based on the supersonic sounding temperature compensation according to claim 1; It is characterized in that: said horizontal direction and vertical direction stepper motor (8; 16) for step angle be 7.5 ° stepper motor, reduction gear ratio 1/120, and 1/4 subdivision driver is housed.
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