CN112763070B - A kind of temperature measuring probe, non-contact infrared thermometer and temperature compensation method - Google Patents
A kind of temperature measuring probe, non-contact infrared thermometer and temperature compensation method Download PDFInfo
- Publication number
- CN112763070B CN112763070B CN202011369222.2A CN202011369222A CN112763070B CN 112763070 B CN112763070 B CN 112763070B CN 202011369222 A CN202011369222 A CN 202011369222A CN 112763070 B CN112763070 B CN 112763070B
- Authority
- CN
- China
- Prior art keywords
- temperature
- cavity
- distance
- chamber
- infrared thermometer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
- G01J5/0025—Living bodies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/0205—Mechanical elements; Supports for optical elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/0225—Shape of the cavity itself or of elements contained in or suspended over the cavity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0806—Focusing or collimating elements, e.g. lenses or concave mirrors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
一种测温探头,包括温度传感器、菲涅尔透镜、铜套、压块;铜套包括一中空的筒状结构的第一腔室,第一腔室的底部设有一同心且倒置的杯状的第二腔室,第二腔室的外径小于铜套的内径,第一腔室的底部中心处设有一透光孔,透光孔连通第一腔室和第二腔室,温度传感器配合设置于第二腔室中,温度传感器的感光面和透光孔对应设置,第一腔室的底部还设有中心对称分布且直径相等的第一通风孔和第二通风孔,第一通风孔和第二通风孔到第一腔室底部中心的距离相等且均大于第二腔室外径的一半,压块为内外径和第一腔室适配的环状结构,压块与第一腔室顶部配合连接并在连接处内侧形成周向设置的凹槽,菲涅尔透镜设置于凹槽中。
A temperature measuring probe includes a temperature sensor, a Fresnel lens, a copper sleeve and a pressing block; the copper sleeve includes a first chamber with a hollow cylindrical structure, and the bottom of the first chamber is provided with a concentric and inverted cup-shaped The second chamber, the outer diameter of the second chamber is smaller than the inner diameter of the copper sleeve, the bottom center of the first chamber is provided with a light-transmitting hole, the light-transmitting hole connects the first chamber and the second chamber, and the temperature sensor cooperates It is arranged in the second chamber, and the photosensitive surface of the temperature sensor and the light-transmitting hole are correspondingly arranged. The bottom of the first chamber is also provided with a first ventilation hole and a second ventilation hole which are symmetrically distributed in the center and have the same diameter. The distance from the second ventilation hole to the center of the bottom of the first chamber is equal to and greater than half of the outer diameter of the second chamber. The top is matched and connected and a circumferentially arranged groove is formed on the inner side of the connection, and the Fresnel lens is arranged in the groove.
Description
技术领域technical field
本发明属于红外测温领域,特别涉及一种测温探头、非接触式红外测温仪及温度补偿方法。The invention belongs to the field of infrared temperature measurement, and particularly relates to a temperature measurement probe, a non-contact infrared thermometer and a temperature compensation method.
背景技术Background technique
非接触式红外测温仪是一种专门用来测量人体温度的红外接收体温计,其主要原理是使用红外线感应源,在不接触人体的情况下,接收人体温度所辐射出来的红外线信号,并转换成感应电压,测量感应电压,经过计算处理修正得出体温测量值。The non-contact infrared thermometer is an infrared receiving thermometer specially used to measure the temperature of the human body. The induced voltage is measured, and the temperature measurement value is obtained through calculation and correction.
目前,市场上的非接触式红外测温仪按原理可以分为以下两种:1、采用反射杯结构,将红外光线聚焦在传感器上,进行测温,测温的距离(外壳测温口到人体)通常为0~5cm,超出5 cm后无法使用;2、采用菲涅尔透镜,虽然可以有效增加测温距离(外壳测温口到人体),达到0~15 cm,但在体表模式下远距离测温时,测试数据的准确性会随着距离的增加而降低,并且此类测温仪结构复杂、加工成本高,在长期存储时菲涅尔透镜很容易因为气温骤变而形变,导致精准度下降。At present, the non-contact infrared thermometers on the market can be divided into the following two types according to the principle: 1. Using the reflective cup structure, the infrared light is focused on the sensor for temperature measurement, and the distance of the temperature measurement (the temperature measurement port of the shell reaches the Human body) is usually 0 to 5 cm, and cannot be used after 5 cm; 2. Using Fresnel lens, although the temperature measurement distance (the temperature measurement port of the shell to the human body) can be effectively increased, reaching 0 to 15 cm, but in the body surface mode When the temperature is measured at a long distance, the accuracy of the test data will decrease with the increase of the distance, and the structure of this type of thermometer is complex and the processing cost is high, and the Fresnel lens is easily deformed due to sudden changes in temperature during long-term storage. , resulting in a decrease in accuracy.
发明内容SUMMARY OF THE INVENTION
本发明提供一种测温探头、非接触式红外测温仪及温度补偿方法,其目的是要解决现有非接触式红外测温仪远距离测温的精度不够且温度骤变容易造成精准度降低的问题。The present invention provides a temperature measuring probe, a non-contact infrared thermometer and a temperature compensation method, which aims to solve the problem that the existing non-contact infrared thermometer has insufficient precision in long-distance temperature measurement and a sudden temperature change is likely to cause a decrease in accuracy. question.
为达到上述目的,本发明采用的技术方案是:To achieve the above object, the technical scheme adopted in the present invention is:
技术方案一:一种测温探头,包括温度传感器、菲涅尔透镜,其特征在于:还包括铜套、压块;Technical solution 1: a temperature measuring probe, comprising a temperature sensor and a Fresnel lens, and characterized in that it further comprises a copper sleeve and a pressing block;
假定以红外线的入射方向为参考,所述铜套包括一中空的筒状结构的第一腔室,所述第一腔室的底部设有一同心且倒置的杯状的第二腔室,所述第二腔室的外径小于所述铜套的内径,所述第一腔室的底部中心处设有一透光孔,所述透光孔连通第一腔室和第二腔室,所述温度传感器配合设置于所述第二腔室中,所述温度传感器的感光面和透光孔对应设置,所述第一腔室的底部还设有中心对称分布且直径相等的第一通风孔和第二通风孔,所述第一通风孔和第二通风孔到第一腔室底部中心的距离相等且均大于第二腔室外径的一半,所述压块为内外径和第一腔室适配的环状结构,所述压块与第一腔室顶部配合连接并在连接处内侧形成周向设置的凹槽,所述凹槽所在平面平行于温度传感器的感光面,所述菲涅尔透镜设置于凹槽中。Assuming that the incident direction of infrared rays is taken as a reference, the copper sleeve includes a first chamber with a hollow cylindrical structure, the bottom of the first chamber is provided with a concentric and inverted cup-shaped second chamber, the The outer diameter of the second chamber is smaller than the inner diameter of the copper sleeve, a light-transmitting hole is provided at the bottom center of the first chamber, the light-transmitting hole communicates the first chamber and the second chamber, and the temperature The sensor is arranged in the second chamber, the photosensitive surface of the temperature sensor and the light-transmitting hole are correspondingly arranged, and the bottom of the first chamber is also provided with a first ventilation hole and a second ventilation hole which are symmetrically distributed in the center and have the same diameter. Two ventilation holes, the distances from the first ventilation hole and the second ventilation hole to the center of the bottom of the first chamber are equal and greater than half of the outer diameter of the second chamber, and the pressing block is adapted to the inner and outer diameters of the first chamber The ring structure, the pressure block is connected with the top of the first chamber and forms a circumferentially arranged groove on the inner side of the connection, the plane of the groove is parallel to the photosensitive surface of the temperature sensor, and the Fresnel lens set in the groove.
技术方案二:一种非接触式红外测温仪,包括测温探头,其特征在于:所述测温探头为上述方案所述测温探头。Technical solution 2: a non-contact infrared thermometer, comprising a temperature measurement probe, characterized in that: the temperature measurement probe is the temperature measurement probe described in the above solution.
技术方案三:根据技术方案二所述红外测温仪,其特征在于:还包括一距离传感器,所述距离传感器设置于所述红外测温仪的测温口;Technical solution 3: The infrared thermometer according to
假定菲涅尔透镜的焦距为f,且15 mm≤f≤20 mm;Assume that the focal length of the Fresnel lens is f, and 15 mm≤f≤20 mm;
以红外测温仪的使用状态为参考,所述温度传感器的感光面和菲涅尔透镜之间的距离为d0,且d0= f±1 mm;Taking the use state of the infrared thermometer as a reference, the distance between the photosensitive surface of the temperature sensor and the Fresnel lens is d 0 , and d 0 = f±1 mm;
所述菲涅尔透镜和距离传感器之间的距离为d1,且f<d1<f+5 mm。The distance between the Fresnel lens and the distance sensor is d 1 , and f<d 1 <f+5 mm.
技术方案四:一种温度补偿方法,其特征在于:使用技术方案三所述的非接触式红外测温仪进行测温时的温度补偿方法;Technical solution 4: a temperature compensation method, characterized in that: the temperature compensation method when using the non-contact infrared thermometer described in
所述非接触式红外测温仪采用体表模式下,体表温度优化值Tc通过以下公式计算得到:The non-contact infrared thermometer adopts the body surface mode, and the optimal value T c of the body surface temperature is calculated by the following formula:
Tc= T0+K*d;T c = T 0 +K*d;
所述非接触式红外测温仪采用人体模式下,人体温度优化值T通过以下公式计算得到:The non-contact infrared thermometer adopts the human body mode, and the human body temperature optimization value T is calculated by the following formula:
T=Tc+M= T0+K*d+M;T=T c +M= T 0 +K*d+M;
其中,Tc为体表温度优化值,T为人体温度优化值,T0为温度传感器的实际测量值,K为常数,其取值范围是0℃/cm≤K≤ 0.2℃/cm, d为距离传感器和测温源之间的距离厘米数(以红外线入射方向为参考,更准确的说,是距离传感器和测温源投影在红外线入射方向上的距离),所述M为常数值,且其取值范围是-5℃~5℃。Among them, T c is the optimized value of body surface temperature, T is the optimized value of human body temperature, T 0 is the actual measurement value of the temperature sensor, K is a constant, and its value range is 0°C/cm≤K≤0.2°C/cm, d is the distance in centimeters between the distance sensor and the temperature measurement source (with the infrared incident direction as a reference, more precisely, the distance between the distance sensor and the temperature measurement source projected in the infrared incident direction), the M is a constant value, And its value range is -5 ℃ ~ 5 ℃.
上述技术方案中的有关内容解释如下:The relevant contents in the above technical solutions are explained as follows:
1. 上述方案中,第一通风孔和第二通风孔的直径为0.75 mm~1.25 mm。1. In the above solution, the diameters of the first ventilation hole and the second ventilation hole are 0.75 mm to 1.25 mm.
2. 上述方案中,所述距离传感器为红外距离传感器,优选的使用TOF传感器。TOF传感器通过设备反射回来的红外线进行测距,易受到肤色、温度的影响,TOF传感器通过计算发射光波到接受反射光波的时间,来识别距离,并且肤色、温度对其测试精度基本无影响。由于在外壳测温口安装距离传感器以及距离传感器如何使用都是现有技术,在此不做赘述。2. In the above solution, the distance sensor is an infrared distance sensor, preferably a TOF sensor. The TOF sensor measures the distance through the infrared rays reflected from the device, which is easily affected by skin color and temperature. The TOF sensor recognizes the distance by calculating the time from the emission of light waves to the reception of reflected light waves, and the skin color and temperature basically have no effect on its test accuracy. Since the distance sensor is installed at the temperature measuring port of the housing and how to use the distance sensor is in the prior art, it will not be repeated here.
3. 上述方案中,所述非接触式红外测温仪还可以包括启动按钮、控制板、液晶显示屏、机壳、装饰盖、电池舱、电池舱盖。3. In the above solution, the non-contact infrared thermometer may also include a start button, a control panel, a liquid crystal display, a casing, a decorative cover, a battery compartment, and a battery compartment cover.
4.上述方案中,铜套的第一腔室内部优选黑色,用于吸收散光,减少误差。4. In the above solution, the interior of the first chamber of the copper sleeve is preferably black to absorb astigmatism and reduce errors.
5.上述方案中,距离传感器设置于所述红外测温仪的测温口,应当理解为,设置于测温口外壳的外侧或内侧均可。5. In the above solution, the distance sensor is arranged at the temperature measuring port of the infrared thermometer, and it should be understood that it can be arranged on the outside or inside of the shell of the temperature measuring port.
6. 具体操作方法,采用该非接触测温仪,先确定模式(体表模式或者人体模式),将测温仪探头对准人体(推荐位置为额头),按下测量键,距离传感器识别到测温口与人体距离d,并传输到芯片进行处理,同时温度传感器识别温度传感器的实际测量值T0并传输到芯片,根据所选模式,若是体表则按照算法Tc=T0+K*d,芯片算出体表温度,若是人体模式,则按照算法T=Tc+M算出人体温度。其中,M为常数值,实质是表面温度与人体温度的差值,根据机器的实测差值来定,此常数值可以通过出厂时测试输入,也可以通过操作者使用前操作设置。6. The specific operation method, using the non-contact thermometer, first determine the mode (body surface mode or human body mode), point the thermometer probe at the human body (recommended position is the forehead), press the measurement button, the distance sensor recognizes The distance d between the temperature measurement port and the human body is transmitted to the chip for processing. At the same time, the temperature sensor recognizes the actual measurement value T 0 of the temperature sensor and transmits it to the chip. According to the selected mode, if it is a body surface, follow the algorithm T c =T 0 +K *d, the chip calculates the body surface temperature. If it is a human body model, it calculates the body temperature according to the algorithm T=T c +M. Among them, M is a constant value, which is essentially the difference between the surface temperature and the human body temperature. It is determined according to the actual measured difference of the machine. This constant value can be input through the test at the factory, or can be set by the operator before use.
本发明设计原理和效果是:The design principle and effect of the present invention are:
⒈本技术方案中的测温探头,对铜套进行了特殊的设计,其两个中心对称分布的通气孔可以使得在环境温度骤变或者船运时,有效防止内部气体膨胀或收缩导致透镜变形的情况,保证了红外测温仪在日常保存使用时的测温一致性和准确性;另外,本技术方案中的通气孔的数量、相对位置、直径大小共同决定了技术效果,因为将通气孔增大或增加通气孔数量会一定程度影响温度传感器的。⒈ The temperature measuring probe in this technical solution has a special design for the copper sleeve, and its two centrally symmetrically distributed ventilation holes can effectively prevent the lens from being deformed due to the expansion or contraction of the internal gas when the ambient temperature changes suddenly or during shipping. In addition, the number, relative position and diameter of the ventilation holes in this technical solution jointly determine the technical effect, because the ventilation holes are Increasing or increasing the number of vents will affect the temperature sensor to some extent.
⒉菲涅尔透镜原理解析:平行光穿过透镜,会在焦点上进行聚焦,因此测温探头中温度传感器感光面和菲涅尔透镜间距设置为d0=f±1mm。这样可以最大程度的收集红外线,见附图5;⒉Analysis of Fresnel lens principle: Parallel light passes through the lens and will be focused on the focal point, so the distance between the temperature sensor photosensitive surface and the Fresnel lens in the temperature measuring probe is set to d 0 =f±1mm. In this way, infrared rays can be collected to the greatest extent, see Figure 5;
⒊另一方面,当菲尼尔透镜和距离传感器(机壳测温口)之间的距离d1≤f时(即测温源贴着机壳测温口时,测温源距离菲涅尔透镜的距离为最短距离,此最短距离一定要大于菲涅尔透镜的焦距),否则将不能成像或只能成同方向虚像,因此要求d1>f(f代表焦距),控制人体与菲涅尔透镜距离大于f;而本技术方案中为了防止d1过大而引起误差,设定d1<f+5 mm,5mm=0.5cm,根据本技术方案提供的公式Tc= T0+K*d,0.1℃/cm * 0.5 cm=0.05℃,此误差可以忽略不计,见附图6-7。3. On the other hand, when the distance d 1 ≤ f between the Fresnel lens and the distance sensor (chassis temperature measurement port) (that is, when the temperature measurement source is attached to the case temperature measurement port, the temperature measurement source is far away from the Fresnel The distance of the lens is the shortest distance, and this shortest distance must be greater than the focal length of the Fresnel lens), otherwise it will not be able to image or can only form a virtual image in the same direction, so it is required that d 1 >f (f represents the focal length) to control the human body and the Fresnel lens. The lens distance is greater than f; and in this technical solution, in order to prevent errors caused by excessive d 1 , set d 1 <f+5 mm, 5 mm=0.5 cm, according to the formula provided by this technical solution T c = T 0 +K* d, 0.1°C/cm * 0.5 cm=0.05°C, this error can be ignored, see Figure 6-7.
4.本技术方案同时又对菲涅尔透镜的焦距、温度传感器和菲涅尔透镜之间的距离、菲涅尔透镜和外壳测温口的距离均进行了限定,使得可以通过线性公式对远距离测温进行温度补偿,增加非接触式红外测温仪在远距离测温时的准确性。4. This technical solution also limits the focal length of the Fresnel lens, the distance between the temperature sensor and the Fresnel lens, and the distance between the Fresnel lens and the temperature measuring port of the housing, so that the distance can be measured by a linear formula. Temperature compensation for distance temperature measurement increases the accuracy of non-contact infrared thermometers in remote temperature measurement.
5.本技术方案将距离补偿测温方法与菲涅尔透镜技术相结合,首先通过设计铜套结构、选择合适菲涅尔透镜、设定透镜与红外温度传感器间距离参数,组成测量探头,该探头使得测量值与距离的关系为线性函数,在通过距离传感器识别详细距离,利用算法,将距离加进测温补偿中,使得随着距离增加,同步进行补偿,提高测量精度。5. This technical solution combines the distance compensation temperature measurement method with the Fresnel lens technology. First, by designing the copper sleeve structure, selecting the appropriate Fresnel lens, and setting the distance parameters between the lens and the infrared temperature sensor, a measurement probe is formed. The probe makes the relationship between the measurement value and the distance a linear function. After identifying the detailed distance through the distance sensor, the algorithm is used to add the distance to the temperature measurement compensation, so that as the distance increases, the compensation is performed synchronously to improve the measurement accuracy.
6.本技术方案提供一种远距离精准测温红外非接触测温装置,以解决市场上远距离非接触体温计精准测量的需求,该技术既提高了测量精度、测量效率,还能有效保护测量者(疫情期间要求间距1m)。6. This technical solution provides a long-distance accurate temperature measurement infrared non-contact temperature measurement device to meet the demand for accurate measurement of long-distance non-contact thermometers in the market. This technology not only improves the measurement accuracy and measurement efficiency, but also effectively protects the measurement. (during the epidemic, the distance is required to be 1m).
附图说明Description of drawings
附图1为本发明测温探头爆炸图;Accompanying drawing 1 is the exploded view of the temperature measuring probe of the present invention;
附图2为本发明铜套横截面剖视图;Accompanying drawing 2 is the copper sleeve cross-sectional sectional view of the present invention;
附图3为本发明测温探头横截面剖视图;3 is a cross-sectional sectional view of the temperature measuring probe of the present invention;
附图4为本发明红外测温仪横截面剖视图;4 is a cross-sectional view of the infrared thermometer of the present invention;
附图5为平行光线入射菲涅尔透原理图;Accompanying drawing 5 is the principle diagram of parallel light incident Fresnel penetration;
附图6为光线无法在菲涅尔透镜上成像原理图。Figure 6 is a schematic diagram showing that light cannot be imaged on a Fresnel lens.
以上附图中:1.温度传感器;2.菲涅尔透镜;3. 铜套;31. 第一腔室;311. 透光孔;312. 第一通风孔;313. 第二通风孔;32. 第二腔室;33.凹槽;4. 压块;5. 传感器;6.红外线。In the above drawings: 1. temperature sensor; 2. Fresnel lens; 3. Copper sleeve; 31. First chamber; 311. Light transmission hole; 312. First ventilation hole; 313. Second ventilation hole; 32. Second chamber; Groove; 4. Press block; 5. Sensor; 6. Infrared.
具体实施方式Detailed ways
下面结合附图及实施例对本发明作进一步描述:Below in conjunction with accompanying drawing and embodiment, the present invention is further described:
实施例1:一种测温探头Embodiment 1: a temperature measuring probe
如图1-3所示,一种测温探头,包括温度传感器1、菲涅尔透镜2、铜套3、压块4;As shown in Figure 1-3, a temperature measuring probe includes a
假定以红外线6的入射方向为参考,所述铜套3包括一中空的筒状结构的第一腔室31,所述第一腔室31的底部设有一同心且倒置的杯状的第二腔室32,所述第二腔室32的外径小于所述铜套3的内径,所述第一腔室31的底部中心处设有一透光孔311,所述透光孔311连通第一腔室31和第二腔室32,所述温度传感器1配合设置于所述第二腔室32中,所述温度传感器1的感光面和透光孔311对应设置,所述第一腔室31的底部还设有中心对称分布且直径相等的第一通风孔312和第二通风孔313,所述第一通风孔312和第二通风孔313到第一腔室31底部中心的距离相等且均大于第二腔室32外径的一半,所述压块4为内外径和第一腔室31适配的环状结构,所述压块4与第一腔室31顶部配合连接并在连接处内侧形成周向设置的凹槽33,所述凹槽33所在平面平行于温度传感器1的感光面,所述菲涅尔透镜2设置于凹槽33中。第一通风孔312和第二通风孔313的直径为1 mm。Assuming that the incident direction of the
实施例2:一种非接触式红外测温仪,包括测温探头:所述测温探头为实施例1所述测温探头,还包括一距离传感器5,所述距离传感器5设置于所述红外测温仪的测温口;Embodiment 2: A non-contact infrared thermometer, including a temperature measurement probe: the temperature measurement probe is the temperature measurement probe described in
选用菲涅尔透镜2的焦距为20 mm;The focal length of
以红外测温仪的使用状态为参考,所述温度传感器1的感光面和菲涅尔透镜2之间的距离为d0,且d0=20 mm;Taking the use state of the infrared thermometer as a reference, the distance between the photosensitive surface of the
所述菲涅尔透镜2和距离传感器5之间的距离为d1,且d1=21 mm。The distance between the
实施例3:一种温度补偿方法,其特征在于:用于实施例2中非接触式红外测温仪进行温度补偿方法;Embodiment 3: a temperature compensation method, it is characterized in that: for the non-contact infrared thermometer in
所述非接触式红外测温仪采用体表模式下,体表温度优化值Tc通过以下公式计算得到:The non-contact infrared thermometer adopts the body surface mode, and the optimal value T c of the body surface temperature is calculated by the following formula:
Tc= T0+K*d;T c = T 0 +K*d;
所述非接触式红外测温仪采用人体模式下,人体温度优化值T通过以下公式计算得到:The non-contact infrared thermometer adopts the human body mode, and the human body temperature optimization value T is calculated by the following formula:
T=Tc+M= T0+K*d+M;T=T c +M= T 0 +K*d+M;
其中,Tc为体表温度优化值,T为人体温度优化值,T0为温度传感器的实际测量值,本实施例中K为0.1℃/cm, d为距离传感器和测温源之间的距离厘米数,所述M为常数值,是对同一测试源测温时,分别采用人体模式和体表模式时温度传感器显示数值的差值。下表1为通过实施例2(即铜套设有两个通气孔)温度感应器测得的数值和计算所得优化值:下表2为实施例2在16℃放置一周后的温度感应器测试数据和计算数据;下表3为实施例2在39℃放置一周后的温度感应器测试数据和计算数据;Wherein, T c is the body surface temperature optimization value, T is the human body temperature optimization value, T 0 is the actual measurement value of the temperature sensor, in this embodiment, K is 0.1 ℃/cm, d is the distance between the sensor and the temperature measurement source. The distance in centimeters, the M is a constant value, which is the difference between the values displayed by the temperature sensor when using the human body mode and the body surface mode respectively when measuring the temperature of the same test source. The following table 1 is the measured value and the optimized value obtained by the temperature sensor of Example 2 (that is, the copper sleeve is provided with two ventilation holes): The following table 2 is the temperature sensor test of Example 2 after being placed at 16°C for a week Data and calculation data; Table 3 below is the temperature sensor test data and calculation data of Example 2 after being placed at 39°C for one week;
表1:Table 1:
表2:16℃放置一周Table 2: One week at 16°C
表3:39℃放置一周Table 3: 39℃ for one week
对照表1-3,通过铜套上的两个通气孔设计,通过Tc= T0+K*d的公式可以很好的补偿因测温距离产生的误差,保证测温数据的一致性,并且在16℃和39℃的环境中放置一周后,测温数据依旧一致性良好。According to Table 1-3, through the design of two ventilation holes on the copper sleeve, the error caused by the temperature measurement distance can be well compensated by the formula of T c = T 0 +K*d, and the consistency of the temperature measurement data can be ensured. And after being placed in the environment of 16 ℃ and 39 ℃ for a week, the temperature measurement data is still consistent.
对比例1:将实施例2中的铜套替换为无孔铜套,进行测温。下表4(即铜套无通气孔)为温度感应器测得的数值以及39℃放置一周后的数值。Comparative Example 1: The copper sleeve in Example 2 was replaced with a non-porous copper sleeve, and temperature was measured. The following table 4 (that is, the copper sleeve has no ventilation holes) is the value measured by the temperature sensor and the value after being placed at 39 ° C for one week.
表4:Table 4:
对比例2:将实施例2中的铜套替换为4个通风孔的铜套,进行测温。下表5(即铜套设有4个通风孔)为温度感应器测得的数值以及39℃放置一周后的数值。Comparative Example 2: The copper sleeve in Example 2 was replaced with a copper sleeve with 4 ventilation holes, and the temperature was measured. The following table 5 (that is, the copper sleeve has 4 ventilation holes) is the value measured by the temperature sensor and the value after being placed at 39 ℃ for one week.
表5:table 5:
对照表4和表5,无通气孔或4个通气孔的铜套情况下,温度传感器测得的数据一致性线性拟合效果不好,数据的一致性也稍差。Comparing Table 4 and Table 5, in the case of a copper sleeve without ventilation holes or with 4 ventilation holes, the linear fitting effect of the data consistency measured by the temperature sensor is not good, and the consistency of the data is also slightly worse.
上述实施例只为说明本发明的技术构思及特点,其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施,并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围之内。The above-mentioned embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the art to understand the content of the present invention and implement them accordingly, and cannot limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included within the protection scope of the present invention.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011369222.2A CN112763070B (en) | 2020-11-30 | 2020-11-30 | A kind of temperature measuring probe, non-contact infrared thermometer and temperature compensation method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011369222.2A CN112763070B (en) | 2020-11-30 | 2020-11-30 | A kind of temperature measuring probe, non-contact infrared thermometer and temperature compensation method |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112763070A CN112763070A (en) | 2021-05-07 |
CN112763070B true CN112763070B (en) | 2022-06-17 |
Family
ID=75693752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011369222.2A Active CN112763070B (en) | 2020-11-30 | 2020-11-30 | A kind of temperature measuring probe, non-contact infrared thermometer and temperature compensation method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112763070B (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201775622U (en) * | 2010-08-12 | 2011-03-30 | 浙江卓瑞机电有限公司 | Non-contact infrared temperature measuring probe for measuring temperature of human body |
CN105102947A (en) * | 2012-11-19 | 2015-11-25 | 卡兹欧洲公司 | Non-Contact Medical Thermometer with Distance Sensing and Compensation |
CN106855436A (en) * | 2015-12-08 | 2017-06-16 | 深圳超多维光电子有限公司 | A kind of terminal device and the method for temperature survey |
CN107361748A (en) * | 2017-07-20 | 2017-11-21 | 歌尔股份有限公司 | A kind of temperature taking method and apparatus |
CN207703342U (en) * | 2018-01-19 | 2018-08-07 | 深圳市正康科技有限公司 | A kind of infrared temperature detection component and medical infrared volume temperature meter |
CN111637974A (en) * | 2020-05-29 | 2020-09-08 | 深圳市康贝电子有限公司 | Non-contact temperature measuring device and temperature measuring method |
CN214010551U (en) * | 2020-11-30 | 2021-08-20 | 江苏鱼跃医疗设备股份有限公司 | A temperature measuring probe and non-contact infrared thermometer |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN206505384U (en) * | 2017-03-07 | 2017-09-19 | 中山大学新华学院 | A kind of gesture identifying device |
CN208926337U (en) * | 2017-07-20 | 2019-06-04 | 歌尔股份有限公司 | A kind of temperature taking device |
CN208921295U (en) * | 2018-09-20 | 2019-05-31 | 扬州普瑞森科技有限公司 | A kind of novel non-contact infrared temperature probe |
-
2020
- 2020-11-30 CN CN202011369222.2A patent/CN112763070B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201775622U (en) * | 2010-08-12 | 2011-03-30 | 浙江卓瑞机电有限公司 | Non-contact infrared temperature measuring probe for measuring temperature of human body |
CN105102947A (en) * | 2012-11-19 | 2015-11-25 | 卡兹欧洲公司 | Non-Contact Medical Thermometer with Distance Sensing and Compensation |
CN106855436A (en) * | 2015-12-08 | 2017-06-16 | 深圳超多维光电子有限公司 | A kind of terminal device and the method for temperature survey |
CN107361748A (en) * | 2017-07-20 | 2017-11-21 | 歌尔股份有限公司 | A kind of temperature taking method and apparatus |
CN207703342U (en) * | 2018-01-19 | 2018-08-07 | 深圳市正康科技有限公司 | A kind of infrared temperature detection component and medical infrared volume temperature meter |
CN111637974A (en) * | 2020-05-29 | 2020-09-08 | 深圳市康贝电子有限公司 | Non-contact temperature measuring device and temperature measuring method |
CN214010551U (en) * | 2020-11-30 | 2021-08-20 | 江苏鱼跃医疗设备股份有限公司 | A temperature measuring probe and non-contact infrared thermometer |
Also Published As
Publication number | Publication date |
---|---|
CN112763070A (en) | 2021-05-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103424192B (en) | A kind of method of infrared thermometer temperature drift compensation | |
CN111272290B (en) | Temperature measurement thermal infrared imager calibration method and device based on deep neural network | |
WO1997024588A1 (en) | Infrared thermometer | |
CN111198042B (en) | An infrared thermometer | |
US20040028116A1 (en) | Ear thermometer probe structure | |
TW201908821A (en) | Smart contact lens for displaying images and light-transmitting body thereof | |
CN112763070B (en) | A kind of temperature measuring probe, non-contact infrared thermometer and temperature compensation method | |
TW202037328A (en) | Ear thermometer | |
CN105942987A (en) | Portable infrared thermometer for continuous monitoring and temperature compensation method thereof | |
CN111121651A (en) | Optical Measurement Stability Control System | |
CN110044279A (en) | A kind of sealing ring measurer for thickness and method | |
CN103284698A (en) | Miniature rapid body temperature sensing device | |
CN209639834U (en) | A kind of infrared thermometer | |
CN214010551U (en) | A temperature measuring probe and non-contact infrared thermometer | |
CN105333952B (en) | A kind of spectral measurement CCD module improving detectivity | |
CN111579088A (en) | Double-precision temperature measurement correction method based on infrared sensor and UWB | |
TWM596600U (en) | Ear temperature measurement of wearable headset. | |
EP4350311A1 (en) | Wearable electronic apparatus, body temperature measurement method, and wearable electronic device | |
CN206787724U (en) | A kind of photoelectric sensor and infrared radiation thermometer | |
CN114878004A (en) | Distance sensing constant-temperature thermal imaging device and calibration and temperature measurement method | |
CN104062011B (en) | Optimize the hand-hold light source color illumination spectroscopic measurements instrument of cosine response design | |
CN111307300B (en) | Temperature calibration device and method for infrared temperature measurement sensor | |
CN103292777B (en) | Based on the twin shaft digital sun sensor of Moire fringe | |
CN116753990B (en) | Optical remote sensor on-orbit radiation calibration method, device, system and computer equipment | |
CN116608888B (en) | Optical remote sensor on-orbit radiation calibration reference body equipment and calibration method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |