CN117571624A - A convenient insulating oil content measuring device - Google Patents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
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Abstract
Description
技术领域Technical field
本发明涉及绝缘油检测设备技术领域，尤其涉及一种便捷式绝缘油含量测量装置。The invention relates to the technical field of insulating oil detection equipment, and in particular to a convenient insulating oil content measuring device.
背景技术Background technique
充油式海底电缆在区域性供电互联、海上风电、海上潮汐发电等输送能源中起着至关重要的作用，但海底电缆遭受外力破坏、地质变迁、海床摩擦等影响造成电缆破损时，电缆内部的液体可能发生溢出或泄露，为了尽快找到泄漏点并及时修复电缆，可采集电缆所处海域的水样或者在原位环境中使用在线传感器进行泄露液体的浓度分析与测定，从而判断出泄漏点的位置。Oil-filled submarine cables play a vital role in transmitting energy such as regional power supply interconnections, offshore wind power, and offshore tidal power generation. However, when submarine cables are damaged by external forces, geological changes, seabed friction, etc., the cables will The internal liquid may overflow or leak. In order to find the leakage point as soon as possible and repair the cable in time, water samples from the sea area where the cable is located can be collected or online sensors can be used in the in-situ environment to analyze and measure the concentration of the leaked liquid to determine the leak. point location.
海底管道液体泄露的测定是比较复杂的，因为其成分比较复杂，无法用单一标准进行对照，此外不同地区、不同行业的泄露液体种类也不相同，油气行业以及海底充油电缆泄露的液体以矿物油为主，矿物油的品种很多，形成污染的情况比较复杂。现有的检测装置结构复杂，成本高，维护难度大，局部设备由于水体浑浊情况复杂而导致检测无效。The measurement of liquid leakage from submarine pipelines is relatively complicated because its composition is complex and cannot be compared with a single standard. In addition, the types of leaked liquids in different regions and industries are also different. Liquids leaked from the oil and gas industry and submarine oil-filled cables are based on minerals. Mainly oil, there are many varieties of mineral oil, and the pollution situation is more complicated. The existing detection device has a complex structure, high cost, and difficult maintenance. Some equipment has ineffective detection due to the complex turbidity of the water body.
发明内容Contents of the invention
本发明的目的是克服上述现有技术的不足，提供一种便捷式绝缘油含量测量装置。The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a convenient insulating oil content measuring device.
本发明是通过以下技术方案来实现的：一种便捷式绝缘油含量测量装置，包括装置本体，所示装置本体设置有储液池、紫外光源、传感器、用于对传感器接收光源进行检测及处理的处理器、以及用于调节光源入射的调节装置；浑浊水体装在所述储液池内，所述紫外光源与所述传感器分别安装在所述储液池长度方向的对侧，所述调节装置可拆卸地安装在与所述紫外光源位于同一侧的装置本体上，所述调节装置位于所述紫外光源与所述传感器之间，并且所述调节装置与所述紫外光源位置相对；所述紫外光源的光透过所述调节装置后穿过浑浊水体并投向所述传感器，所述传感器感受到光源后将光源信号转化为电信号传递给所述处理器。The present invention is realized through the following technical solutions: a portable insulating oil content measuring device, including a device body. The device body is provided with a liquid storage tank, an ultraviolet light source, and a sensor for detecting and processing the light source received by the sensor. The processor and the adjustment device for adjusting the incidence of the light source; the turbid water body is installed in the liquid storage tank, the ultraviolet light source and the sensor are respectively installed on the opposite sides of the length direction of the liquid storage tank, the adjustment device Detachably installed on the device body on the same side as the ultraviolet light source, the adjustment device is located between the ultraviolet light source and the sensor, and the adjustment device is opposite to the ultraviolet light source; the ultraviolet light source The light from the light source passes through the adjustment device and then passes through the turbid water and is directed to the sensor. After sensing the light source, the sensor converts the light source signal into an electrical signal and transmits it to the processor.
调节装置可拆卸安装，对入射光源进行调节，使检测实现可控；紫外光源与传感器的配合，可用于对浑浊水体绝缘油含量的检测，传感器将感受到的光源信号转化为电信号供处理器读取及分析；本装置可针对不同水体进行检测，提高装置的性价比和适用性。The adjustment device can be disassembled and installed to adjust the incident light source to make the detection controllable. The combination of the ultraviolet light source and the sensor can be used to detect the insulating oil content of turbid water. The sensor converts the light source signal sensed into an electrical signal for the processor. Reading and analysis; this device can detect different water bodies, improving the cost performance and applicability of the device.
所述调节装置包括基体和玻璃透镜，所述基体为柱状结构，其中部开设有将其上下底面贯穿的通孔；所述玻璃透镜安装在所述通孔内且位于所述通孔的端部；所述基体底面可拆卸地安装在所述储液池的侧壁；所述紫外光源的光依次通过所述通孔、所述玻璃透镜后进入浑浊水中。通孔为入射光源出射的通道，其与玻璃透镜配合，核对入射光源进行调整。调节装置通过基体可拆卸安装，可实现结构的可拆卸，便于安装及调整。The adjustment device includes a base body and a glass lens. The base body is a columnar structure with a through hole in the middle that penetrates its upper and lower bottom surfaces; the glass lens is installed in the through hole and is located at the end of the through hole. ; The bottom surface of the base body is detachably mounted on the side wall of the liquid reservoir; the light from the ultraviolet light source passes through the through hole and the glass lens in sequence and then enters the turbid water. The through hole is a channel through which the incident light source emerges. It cooperates with the glass lens to check and adjust the incident light source. The adjustment device can be detachably installed through the base body, which can realize the detachment of the structure and facilitate installation and adjustment.
所述基体为圆台型结构，所述通孔将圆台型结构基体的上底面和下底面贯穿。The base body is a truncated cone-shaped structure, and the through hole penetrates the upper and lower bottom surfaces of the truncated cone-shaped structure base body.
所述通孔周边的基体底面上设有定位槽，定位槽内套设有O型圈，所述调节装置安装时，所述O型圈外侧面顶着所述储液池的侧壁。O型圈与定位槽的设置，可对通孔形成密封的环境，避免水体进入通孔内，影响实验效果。A positioning groove is provided on the bottom surface of the base body around the through hole, and an O-ring is set in the positioning groove. When the adjustment device is installed, the outer surface of the O-ring presses against the side wall of the liquid reservoir. The setting of the O-ring and the positioning groove can form a sealed environment for the through hole to prevent water from entering the through hole and affecting the experimental results.
所述调节装置设有若干个，若干个所述调节装置具有不同长度的通孔。通过设有不同长度通孔，可使本装置的入射光源进行调整，通过更换不同的调节装置，使得光源在储液池内穿射的距离发生变动，从而相当于调节了储液池水体的长度，使之适合不同水体的检测。There are several adjustment devices, and several of the adjustment devices have through holes of different lengths. By providing through holes of different lengths, the incident light source of the device can be adjusted. By replacing different adjustment devices, the distance of the light source penetrating in the liquid reservoir changes, which is equivalent to adjusting the length of the water body in the liquid reservoir. Make it suitable for detection of different water bodies.
所述基体为采用366型不锈钢材质制成的基体。The base body is made of 366 stainless steel.
所述储液池为采用具有耐腐性材料制成的储液池。The liquid storage tank is a liquid storage tank made of corrosion-resistant materials.
所述储液池为采用366不锈钢材质制成的结构。The liquid storage tank is made of 366 stainless steel.
所述紫外光源与所述传感器位于同一水平线上，且位于浑浊水体水面以下的地方。The ultraviolet light source and the sensor are located on the same horizontal line and below the surface of the turbid water body.
与现有技术对比，本发明的优点在于：本装置可针对不同的水体，通过更换不同长度的调节装置，调整储液池水体的长度，实现对水体绝缘油的检测；本装置结构简单、操作便捷，适用于不同的水体，具有较高的性价比。Compared with the existing technology, the advantage of the present invention is that: this device can adjust the length of the water body in the liquid storage pool for different water bodies by replacing the adjustment devices of different lengths to realize the detection of insulating oil in the water body; the device has a simple structure and is easy to operate. Convenient, suitable for different water bodies, and has high cost performance.
附图说明Description of the drawings
图1为本发明实施例1的结构示意图；Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;
图2为本发明实施例2的结构示意图；Figure 2 is a schematic structural diagram of Embodiment 2 of the present invention;
图3为本发明实施例处理器的光路设计图；Figure 3 is an optical path design diagram of the processor according to the embodiment of the present invention;
图4为本发明实施例处理器硬件设置的结构框架图；Figure 4 is a structural framework diagram of the processor hardware configuration according to the embodiment of the present invention;
图5为本发明实施例处理器硬件设置的原理图。FIG. 5 is a schematic diagram of the hardware configuration of a processor according to an embodiment of the present invention.
图中附图标记含义：1、紫外光源；2、传感器；3、储液池；4、调节装置；41、基体；42、玻璃透镜；43、通孔；44、O型圈；5、浑浊水体。The meaning of the reference symbols in the figure: 1. Ultraviolet light source; 2. Sensor; 3. Liquid reservoir; 4. Adjustment device; 41. Base body; 42. Glass lens; 43. Through hole; 44. O-ring; 5. Turbidity Water body.
具体实施方式Detailed ways
下面结合附图和具体实施方式对本发明的内容做进一步详细说明。The content of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
实施例Example
参阅图1至图3，为一种便捷式绝缘油含量测量装置，包括装置本体，所示装置本体设置有储液池3、紫外光源1、传感器2、用于对传感器2接收光源进行检测及处理的处理器、以及用于调节光源入射的调节装置4；浑浊水体5装在储液池3内，紫外光源1与传感器2分别安装在储液池3长度方向的对侧，调节装置4可拆卸地安装在与紫外光源1位于同一侧的装置本体上，调节装置4位于紫外光源1与传感器2之间，并且调节装置4与紫外光源1位置相对；紫外光源1的光透过调节装置4后穿过浑浊水体5并投向传感器2，传感器2感受到光源后将光源信号转化为电信号传递给处理器。Referring to Figures 1 to 3, a portable insulating oil content measuring device is shown, including a device body. The device body shown is provided with a liquid reservoir 3, an ultraviolet light source 1, and a sensor 2, which is used to detect and detect the light source received by the sensor 2. The processing processor and the adjustment device 4 for adjusting the incident light source; the turbid water body 5 is installed in the liquid storage tank 3, the ultraviolet light source 1 and the sensor 2 are respectively installed on the opposite sides of the length direction of the liquid storage tank 3, and the adjustment device 4 can Detachably installed on the device body on the same side as the ultraviolet light source 1, the adjustment device 4 is located between the ultraviolet light source 1 and the sensor 2, and the adjustment device 4 is opposite to the ultraviolet light source 1; the light of the ultraviolet light source 1 passes through the adjustment device 4 Then it passes through the turbid water body 5 and is directed to the sensor 2. After sensing the light source, the sensor 2 converts the light source signal into an electrical signal and transmits it to the processor.
调节装置4可拆卸安装，对入射光源进行调节，使检测实现可控；紫外光源1与传感器2的配合，可用于对浑浊水体5绝缘油含量的检测，传感器2将感受到的光源信号转化为电信号供处理器读取及分析；本装置可针对不同水体进行检测，提高装置的性价比和适用性。The adjustment device 4 can be detachably installed to adjust the incident light source to make the detection controllable; the cooperation of the ultraviolet light source 1 and the sensor 2 can be used to detect the insulating oil content of the turbid water body 5, and the sensor 2 converts the light source signal sensed into The electrical signals are read and analyzed by the processor; this device can detect different water bodies, improving the cost performance and applicability of the device.
调节装置4包括基体41和玻璃透镜42，基体41为柱状结构，其中部开设有将其上下底面贯穿的通孔43；玻璃透镜42安装在通孔43内且位于通孔43的端部；基体41底面可拆卸地安装在储液池3的侧壁；紫外光源1的光依次通过通孔43、玻璃透镜42后进入浑浊水中。通孔43为入射光源出射的通道，其与玻璃透镜42配合，核对入射光源进行调整。调节装置4通过基体41可拆卸安装，可实现结构的可拆卸，便于安装及调整。The adjustment device 4 includes a base body 41 and a glass lens 42. The base body 41 is a columnar structure with a through hole 43 extending through its upper and lower bottom surfaces in the middle; the glass lens 42 is installed in the through hole 43 and is located at the end of the through hole 43; the base body The bottom surface of 41 is detachably installed on the side wall of the liquid reservoir 3; the light from the ultraviolet light source 1 passes through the through hole 43 and the glass lens 42 in sequence and then enters the turbid water. The through hole 43 is a channel through which the incident light source exits. It cooperates with the glass lens 42 to check the incident light source and adjust it. The adjusting device 4 can be detachably installed through the base 41, which can realize the detachment of the structure and facilitate installation and adjustment.
基体41为圆台型结构，通孔43将圆台型结构基体41的上底面和下底面贯穿。The base 41 has a truncated cone-shaped structure, and the through hole 43 penetrates the upper and lower bottom surfaces of the truncated cone-shaped base 41 .
通孔43周边的基体41底面上设有定位槽，定位槽内套设有O型圈44，调节装置4安装时，O型圈44外侧面顶着储液池3的侧壁。O型圈44与定位槽的设置，可对通孔43形成密封的环境，避免水体进入通孔43内，影响实验效果。There is a positioning groove on the bottom surface of the base 41 around the through hole 43, and an O-ring 44 is set in the positioning groove. When the adjusting device 4 is installed, the outer surface of the O-ring 44 presses against the side wall of the liquid reservoir 3. The arrangement of the O-ring 44 and the positioning groove can form a sealed environment for the through hole 43 to prevent water from entering the through hole 43 and affecting the experimental results.
调节装置4设有若干个，若干个调节装置4具有不同长度的通孔43。通过设有不同长度通孔43，可使本装置的入射光源进行调整，通过更换不同的调节装置4，使得光源在储液池3内穿射的距离发生变动，从而相当于调节了储液池3水体的长度，使之适合不同水体的检测。There are several adjustment devices 4 , and the plurality of adjustment devices 4 have through holes 43 with different lengths. By providing through holes 43 of different lengths, the incident light source of the device can be adjusted. By replacing different adjustment devices 4, the distance of the light source penetrating into the liquid reservoir 3 changes, which is equivalent to adjusting the liquid reservoir. 3. The length of the water body makes it suitable for the detection of different water bodies.
基体41为采用366型不锈钢材质制成的基体41。The base body 41 is made of type 366 stainless steel.
储液池3为采用具有耐腐性材料制成的储液池3。The liquid storage tank 3 is made of corrosion-resistant material.
储液池3为采用366不锈钢材质制成的结构。The liquid reservoir 3 is made of 366 stainless steel.
紫外光源1与传感器2位于同一水平线上，且位于浑浊水体5水面以下的地方。The ultraviolet light source 1 and the sensor 2 are located on the same horizontal line and below the surface of the turbid water body 5 .
本实施例中，相关结构涉及的电路、电线等，可埋设在储液池下方的装置本体内部空间内。紫外光源、传感器、用于对传感器接收光源进行检测及处理的处理器，均为现有设备，因此无需展开具体结构分析。本实施例中，处理器可为中央处理单元(CentralProcessing Unit，CPU)，还可以是其他通用处理器、数字信号处理器(Digital SignalProcessor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field-Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。处理器是本装置的控制中心，利用各种接口和线路连接各个部分。In this embodiment, the circuits, wires, etc. involved in the relevant structures can be buried in the internal space of the device body below the liquid reservoir. The ultraviolet light source, sensor, and processor used to detect and process the light source received by the sensor are all existing equipment, so there is no need to carry out specific structural analysis. In this embodiment, the processor may be a central processing unit (CPU), or other general-purpose processor, a digital signal processor (Digital SignalProcessor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), Ready-made field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc. The processor is the control center of the device and uses various interfaces and lines to connect various parts.
本实施例的工作原理为：The working principle of this embodiment is:
参阅图4，本装置需要较强的紫外光源，目前考虑紫外脉冲光源或紫外LED光源，具体的选择将依赖于实验室开展实验进行评测和对比，光路探测包括两个部分，一个是浊度散射光的探测，实现浊度校正；另外是荧光探测，光电二级管的选择将依赖于实验室评测，并提高传感器的信噪比。光路设计路线如图所示紫外激发光束，经一片双凸镜整形为平行光。随后光束被一分为二，一路由两片双凸镜聚光后照射在光电二极管(传感器)上，这一路为对比参考光源；另一路经过光束整形和滤除自然光后均匀照射在装有待测样品(水体)的装置本体储液池上，绝缘油受激后发射出荧光，在原光束的垂直方向通过添加特定中心频率的窄带滤光片，经过聚焦后照射在光电二极管(传感器)上，这一路为荧光探测路。另外还将发射一路浊度探测光源，经一片双凸镜整形为平行光，在分光镜表面进行反射，经过光束整形和滤除自然光后均匀照射在装有待测样品(水体)的装置本体储液池上，含有绝缘油的海水对光进行散射，在原光束的垂直方向经过聚焦后照射在光电二极管(传感器)上，这一路为浊度探测路。Refer to Figure 4. This device requires a strong UV light source. Currently, UV pulse light source or UV LED light source is considered. The specific choice will depend on laboratory experiments for evaluation and comparison. The light path detection includes two parts, one is turbidity scattering. For light detection, turbidity correction is achieved; for fluorescence detection, the selection of photodiodes will depend on laboratory evaluation and improve the signal-to-noise ratio of the sensor. The optical path design is as shown in the figure. The ultraviolet excitation beam is shaped into parallel light by a biconvex mirror. Then the beam is divided into two, one is condensed by two biconvex mirrors and irradiated on the photodiode (sensor), which is the reference light source for comparison; the other is shaped and filtered out of the natural light and then evenly irradiated on the device to be treated. On the liquid storage tank of the device body for measuring the sample (water body), the insulating oil emits fluorescence after being excited. A narrow-band filter with a specific center frequency is added in the vertical direction of the original beam, and is focused and irradiated on the photodiode (sensor). This One road is the fluorescence detection road. In addition, a turbidity detection light source will be emitted, which will be shaped into parallel light by a biconvex mirror and reflected on the surface of the spectroscope. After the beam is shaped and natural light is filtered out, it will be evenly illuminated on the body of the device containing the sample (water body) to be measured. On the liquid pool, the seawater containing insulating oil scatters the light, and after focusing in the vertical direction of the original beam, it shines on the photodiode (sensor). This path is the turbidity detection path.
参阅图5，本实施例的处理器安装在装置本体内，包括光机结构模块、光源调制模块、信号处理模块、电源模块和通信模块，如硬件控制技术路线图所示。其中光机结构模块包括光源(紫外光源)、光学镜片、光电二极管(传感器)和检测室等；光源调制模块是输出一个固定频率和恒流的光源驱动电路；信号处理模块包括微弱光电流信号的放大和滤波、A/D采样以及数字锁相放大的实现；电源模块采用隔离电源为模拟电路和数字电路分别供电，外部输入12V单电源经过DC-DC电源模块进行隔离处理产生双极性电源±12V，然后经过三端稳压器降压滤波后提供不同工作电源；通信模块是通过RS485通信方式与上位机进行数据传输。本实施例中，光源(紫外光源)、光学镜片、光电二极管(传感器)、信号处理模块、电源模块、温度模块、通信模块(RS485通信)等均为现有设备，无需展开具体结构分析。Referring to Figure 5, the processor of this embodiment is installed in the device body and includes an optical-mechanical structure module, a light source modulation module, a signal processing module, a power module and a communication module, as shown in the hardware control technology roadmap. The opto-mechanical structure module includes light source (UV light source), optical lenses, photodiodes (sensors) and detection chambers, etc.; the light source modulation module outputs a light source drive circuit with a fixed frequency and constant current; the signal processing module includes a weak photocurrent signal. Implementation of amplification and filtering, A/D sampling and digital lock-in amplification; the power module uses an isolated power supply to power analog circuits and digital circuits respectively. The external input 12V single power supply is isolated by the DC-DC power module to generate a bipolar power supply ± 12V, and then provide different working power supplies after being stepped down and filtered by a three-terminal voltage regulator; the communication module transmits data with the host computer through RS485 communication. In this embodiment, the light source (ultraviolet light source), optical lens, photodiode (sensor), signal processing module, power module, temperature module, communication module (RS485 communication), etc. are all existing equipment, and no specific structural analysis is required.
本装置完成绝缘液体的在不同浓度下的分段标定，建立不同浓度与装置荧光强度响应值之间的关系曲线；完成本底噪声稳定性和样品测量值稳定性校准。This device completes the segmented calibration of the insulating liquid at different concentrations, establishes the relationship curve between different concentrations and the device's fluorescence intensity response value, and completes the calibration of the background noise stability and sample measurement value stability.
本装置的结构设置及使用，是基于Beer-Lambert定律。The structural setup and use of this device are based on Beer-Lambert's law.
比尔-朗伯定律(Beer–Lambert law)，又称比尔定律、比耳定律、朗伯-比尔定律、布格-朗伯-比尔定律(Bouguer–Lambert–Beer law)，是光吸收的基本定律，适用于所有的电磁辐射和所有的吸光物质，包括气体、固体、液体、分子、原子和离子。比尔-朗伯定律是吸光光度法、比色分析法和光电比色法的定量基础。Beer–Lambert law, also known as Beer’s law, Beer’s law, Lambert-Beer law, Bouguer–Lambert–Beer law, is the basic law of light absorption. , applicable to all electromagnetic radiation and all light-absorbing substances, including gases, solids, liquids, molecules, atoms and ions. Beer-Lambert's law is the quantitative basis for absorptiophotometry, colorimetric analysis and photoelectric colorimetry.
一束单色光照射于一吸收介质表面，在通过一定厚度的介质后，由于介质吸收了一部分光能，透射光的强度就要减弱。吸收介质的浓度愈大，介质的厚度愈大，则光强度的减弱愈显著，其关系为：A beam of monochromatic light shines on the surface of an absorbing medium. After passing through a certain thickness of the medium, the intensity of the transmitted light will weaken because the medium absorbs part of the light energy. The greater the concentration of the absorbing medium and the greater the thickness of the medium, the more significant the weakening of the light intensity will be. The relationship is:
其中：in:
A：吸光度；A: absorbance;
I0：入射光的强度；I 0 : intensity of incident light;
It：透射光的强度；I t : intensity of transmitted light;
T：透射比，或称透光度；T: transmittance, or light transmittance;
K：系数，可以是吸收系数或摩尔吸收系数，见下文；K: Coefficient, which can be absorption coefficient or molar absorption coefficient, see below;
l：吸收介质的厚度，一般以em为单位；l: The thickness of the absorbing medium, generally in em;
c：吸光物质的浓度，单位可以是g/L或mol/L。c: The concentration of the light-absorbing substance, the unit can be g/L or mol/L.
比尔-朗伯定律的物理意义是，当一束平行单色光垂直通过某一均匀非散射的吸光物质时，其吸光度A与吸光物质的浓度c及吸收层厚度l成正比。The physical meaning of Beer-Lambert's law is that when a beam of parallel monochromatic light passes vertically through a uniform non-scattering light-absorbing material, its absorbance A is proportional to the concentration c of the light-absorbing material and the thickness l of the absorption layer.
当介质中含有多种吸光组分时，只要各组分间不存在着相互作用，则在某一波长下介质的总吸光度是各组分在该波长下吸光度的加和，这一规律称为吸光度的加合性。When the medium contains multiple light-absorbing components, as long as there is no interaction between the components, the total absorbance of the medium at a certain wavelength is the sum of the absorbances of each component at that wavelength. This rule is called Additivity of absorbance.
系数K：Coefficient K:
当介质厚度l以em为单位，吸光物质浓度c以g/L为单位时，K用a表示，称为吸收系数，其单位为L·g-1·cm-1。这时比尔-朗伯定律表示为A＝ale。When the medium thickness l is in em and the light-absorbing substance concentration c is in g/L, K is represented by a, which is called the absorption coefficient, and its unit is L·g -1 ·cm -1 . At this time, Beer-Lambert's law is expressed as A=ale.
当介质厚度l以em为单位，吸光物质浓度c以mol/L为单位时，K用κ表示，称为摩尔吸收系数，其单位为L·mol-1·cm-1。这时比尔-朗伯定律表示为A＝klc。When the medium thickness l is in em and the light-absorbing substance concentration c is in mol/L, K is represented by κ, which is called the molar absorption coefficient, and its unit is L·mol -1 ·cm -1 . At this time, Beer-Lambert's law is expressed as A=klc.
两种吸收系数之间的关系为：κ＝aMm。The relationship between the two absorption coefficients is: κ=aM m .
一束具有连续输出的光通过一种物质，当光辐射能量刚好满足分子振动能级跃迁所需的能量时，光束中的某些成分便会有所减弱，测量经过物质吸收的光束，得到该物质的吸收光谱。分子光谱按波长的分布规律反映了分子的内部结构。通过对分子光谱的研究可了解原子内部的结构，或对样品所含成分进行定性和定量分析。A beam of light with continuous output passes through a substance. When the light radiation energy just meets the energy required for the molecular vibration energy level transition, some components in the beam will weaken. Measure the beam absorbed by the substance to get the The absorption spectrum of a substance. The distribution of molecular spectra according to wavelength reflects the internal structure of the molecule. Through the study of molecular spectra, the internal structure of atoms can be understood, or the components contained in the sample can be analyzed qualitatively and quantitatively.
根据Beer-Lambert定律，通过具有吸收气体的样品吸收池的激光强度由：According to the Beer-Lambert law, the laser intensity passing through a sample absorption cell with absorbing gas is given by:
其中I和I0分别表示投射强度和入射强度。L表示光通过吸收介质的路径长度，C表示样品浓度。where I and I 0 represent the projected intensity and incident intensity respectively. L represents the path length of light through the absorbing medium, and C represents the sample concentration.
上列详细说明是针对本发明可行实施例的具体说明，该实施例并非用以限制本发明的专利范围，凡未脱离本发明所为的等效实施或变更，均应包含于本案的专利范围中。The above detailed description is a specific description of possible embodiments of the present invention. This embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not depart from the scope of the present invention shall be included in the patent scope of this case. middle.
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