What are the best fiber optic thermometers on the market?

There are several kinds of <> fiber optic thermometers, the more commonly used ones are fluorescent fiber optic thermometers, distributed fiber optic thermometers, fiber grating thermometers, and fluorescent fiber fiber thermometers include IF-C SR-G fiber optic temperature measurement systems.

Introduction to fluorescent fiber optic temperature measurement system.

The product has unique technical advantages in temperature measurement in special environments such as high voltage and strong electromagnetic interference. Among them, the fluorescent optical fiber temperature sensor used in the transmitter does not use an electrical connection between the temperature hot spot and the measurement signal receiving part, and can work with high precision and high stability for a long time, which greatly improves its application range. At the same time, the optical fiber temperature transmitter effectively eliminates the hidden dangers such as shortening the life of the high-voltage circuit breaker or cable head when used in an excessively high temperature environment, or even burning the circuit breaker or cable, which is not conducive to the safe operation of the switchgear.

The transmitter has high accuracy and sensitivity, high pressure and anti-corrosion resistance, remote monitoring, long life, small size, easy and convenient instrument maintenance, and safe transportation. Its internal modular integrated design is beautiful and reasonable.

Features of fluorescent fiber temperature measurement system.

1. The end probe of the optical fiber is attached to the surface of the measured body to measure the temperature.

2. The temperature measurement fiber is immune to electromagnetic field interference.

3. For high-voltage insulation, flame and explosion proof.

4. Single-point temperature measurement and digital signal output.

5. The minimum fiber probe can reach 600um

6. The transmitter is small and easy to install.

The accuracy of the infrared thermometer meets the requirements, and the next Dikai optoelectronics is a brand in Wuhan.

Formal is good, optical fiber and cable and other products are best selected with high quality, so that the transmission can be guaranteed, and we generally use Finit on the construction site.

<> characteristics of fluorescent fiber temperature measurement host.

1. The SR-G fluorescent optical fiber temperature sensor collects the temperature disturbance information of the switch cabinet contacts and cables in real time. The Huaguang Tianrui fluorescent fiber temperature measuring probe has extremely strong electromagnetic immunity, withstand voltage and insulation performance. Sensitive temperature sensing, long-term stable and reliable operation.

The temperature measurement accuracy can reach 1.

2. The system comes with sound and light alarm, dry contact output, man-machine interface display alarm information, etc.

3. The background monitoring software system displays the temperature information of each contact of the current switch cabinet in real time, the real-time curve, and the historical data of the temperature information of each contact in the past month. Various diagnostic methods are used to analyze the health status of the equipment, including the analysis of all equipment parameters exceeding the limit alarm, and the operation status of the high-voltage switchgear is monitored in time. The system can automatically and manually generate various periodic reports and can export and print, and the exported reports can be carried out and viewed through Excel software.

At the same time, the system has the function of real-time and historical temperature curve display, which can accurately reflect the real-time change monitoring curve and the temperature change curve of the monitored object at a certain point in a certain period of time;

4. Detection temperature abnormal alarm:

Threshold Exceeding Alarm: When the temperature value is detected to exceed the threshold, the alarm can be set to two levels;

Exceeding the temperature difference alarm: the temperature difference between the highest temperature and the lowest temperature between the test points within a certain range exceeds the set value (the threshold can be set), and the alarm is started;

Alarm of temperature difference change rate: within a certain period of time, if the temperature change exceeds the set value (the threshold can be set), the alarm will be started; System fault alarm: The system monitors the performance status of the optical fiber temperature measuring probe and the connection status of the optical fiber by itself, realizes self-diagnosis and testing, and prompts system failures in time;

5. Detect abnormal temperature and system failure, and the system will automatically alarm to achieve unattended monitoring.

To put it simply, the infrared thermal imager of the optical thermometer branch has four core advantages: wide temperature measurement angle, defect visualization, thermal imaging experience, and point temperature gun**. The ordinary point thermometer only has a single-point measurement function, while the infrared thermal imager can capture the overall temperature distribution of the measured target, visualize the temperature, efficiently and quickly find high and low temperature points, and obtain tens of thousands of pixel temperature data in one second to avoid missed detection.

Spot thermometer vs. thermal imaging thermometer.

Secondly, the laser indication temperature of the point thermometer is the average temperature in the corresponding target area, but most users will mistakenly think that the temperature value displayed on the screen is the temperature of the laser spot, while the infrared thermal imager does not have this problem, because it shows the overall temperature distribution, it is more accurate and reliable.

Finally, for the recording and analysis of data, ordinary infrared thermometers do not have such a function, and can only be recorded manually, which cannot be effectively managed. Thermal imaging cameras, on the other hand, automatically save visible images at the same time as they are captured for later comparison. In particular, the handheld temperature measurement thermal imager of Hikvision, a major domestic thermal imaging manufacturer, can accurately record the temperature information of the target according to the pixel distribution of the heat map; And it can be stored, exported, annotated, and has background analysis functions and supports one-click export of professional analysis reports, Hikvision handheld thermal imager has become a famous brand favored by the majority of engineers.

Hello: The difference between temperature measurement fiber and temperature measurement optical cable can be understood as the difference between optical fiber and optical cable.

The optical cable is mainly composed of optical fibers (glass filaments as thin as hair) and plastic protective sleeves and plastic sheaths. Optical cable is a certain number of optical fibers in a certain way to form a cable core, covered with a sheath, and some are also covered with an outer protective hall stuffy layer to realize optical signal transmission.

That is: the cable formed by the optical fiber (optical transmission carrier) through a certain process.

Optical fiber is the abbreviation of optical fiber, which is a light conduction tool that uses the principle of total reflection of light in fibers made of glass or plastic.

Hope mine can be helpful to you, thanks.

Global Wire & Cable Portal** - Cable Network.

1. Gas thermometer.

Hydrogen or helium is mostly used as a temperature measurement substance, because the liquefaction temperature of hydrogen and helium is very low, close to absolute zero, so it has a wide range of temperature measurement. This kind of thermometer is very accurate, and it is mostly used for precision measurement, as a kind of thermometer.

2. Resistance thermometer.

There are two types of metal resistance thermometers and semiconductor resistance thermometers, both of which are made based on the characteristic that the resistance value changes with temperature. Metal thermometers are mainly used in pure metals such as platinum, gold, copper, nickel, rhodium, iron and phosphor bronze alloys; Semiconductor thermometers mainly use carbon, germanium, etc. Resistance thermometers are easy to use and reliable, and have been widely used.

It measures in a range of -260 to around 600.

3. Thermometer thermometer.

It is a temperature measuring instrument widely used in industry. It is made by using the phenomenon of temperature difference electricity. Two different wires are welded together to form the working end, and the other two ends are connected to the measuring instrument to form an electrical circuit.

As a kind of thermometer, its working principle is to put the working end at the measured temperature, when the temperature of the working end and the free end is different, there will be an electromotive force, so there is a current through the loop. By measuring electrical quantities, the temperature of another place can be determined by using the temperature of a known place. This thermometer is mostly composed of copper--constantan, iron-constantan, nickel-constantan, gold-cobalt-copper, platinum-rhodium, etc.

It is suitable for between two substances with a large temperature difference, and is mostly used for high temperature and low turbidity measurements. Some thermocouples can measure high temperatures up to 3000 degrees, while others can measure low temperatures close to absolute zero.

4. High temperature thermometer.

It refers to a thermometer specially used to measure the temperature of more than 500 meters, including photometric thermometer, colorimetric thermometer and radiation thermometer. The principle and construction of a high-temperature thermometer are complex and will not be discussed here. It has a measuring range of 500 to more than 3000 and is not suitable for measuring low temperatures.

5. Pointer thermometer.

It is a thermometer shaped like a dashboard, also known as a cold and heat meter, which is used to measure room temperature, and is made of the principle of thermal expansion and cold contraction of metal. It uses a bimetal disc as a temperature sensing element to control the pointer. Bimetal sheets are usually riveted together with copper and iron sheets, with the copper sheet on the left and the iron sheet on the right.

Because the thermal expansion and contraction effect of copper is much more obvious than that of iron, when the temperature rises, the copper sheet pulls the iron sheet and bends to the right, and the pointer is deflected to the right under the drive of the bimetal sheet (pointing to high temperature); Conversely, when the temperature is lower, the pointer is deflected to the left (pointing to a low temperature) driven by the bimetal.

6. Glass tube thermometer.

The glass tube thermometer uses the principle of thermal expansion and contraction to achieve temperature measurement. Due to the difference between the expansion coefficient and the boiling point and the freezing point of the temperature measuring medium, our common glass tube thermometers mainly include: kerosene thermometer, mercury thermometer, red pen water thermometer, alcohol thermometer, etc.

Its advantages are simple structure, easy to use, relatively high measurement accuracy, and low cost. The disadvantage is that the upper and lower limits and accuracy of the measurement are limited by the quality of the glass and the nature of the temperature measurement medium. And it can't be transmitted far away, and it's fragile.

There are also many kinds of thermometers, such as mercury type, infrared type, etc.