The Application Range and Selection of Fiber Optic Temperature Sensors

Волоконно-оптичний датчик температури, Інтелектуальна система моніторингу, Виробник розподіленого волоконно-оптичного волокна в Китаї

There are many types of волоконно-оптичні датчики температури, in addition to fluorescent fiber optic temperature sensors and distributed fiber optic temperature sensors, there are also fiber optic grating temperature sensors, interferometric fiber optic temperature sensors, and fiber optic temperature sensors based on bending loss. Due to the wide variety of fiber optic sensors, they are widely used by many domestic manufacturers and companies in the fields of power systems, construction, Аерокосмічної, and ocean development.
The main application range of fiber optic temperature sensors is in the power system, because power cables need to be temperature measured, high-voltage distribution equipment needs to run excessively hot, and the temperature rise of power plant equipment needs to be monitored, all of which require the use of fiber optic sensors for temperature measurement. Тому, in addition to the traditional PT100 temperature sensor, with the continuous improvement and development of fiber optic sensors. Especially distributed fiber optic temperature measurement and fiber optic grating sensors have been widely used both domestically and abroad. Through their application in the power system industry, the ability of fiber optic sensors to receive signals and fiber optic temperature measurement systems has been greatly improved.

In the temperature measurement systems of power equipment and university laboratories, there are many temperature measurement points that require the use of fiber optic sensors, such as temperature field distribution along long-distance oil and gas pipelines, power cables, comprehensive pipe galleries and tunnels, and temperature measurement of large dry-type transformers. The traditional PT100 platinum thermistor temperature sensor cannot measure temperature normally in strong electromagnetic environments, nor is it suitable for temperature measurement in high-pressure, flammable, explosive or corrosive environments. The use of point temperature sensors for temperature measurement is suitable for widespread temperature measurement in high-voltage electromagnetic environments. Distributed fiber optic temperature sensors can achieve distributed measurement of temperature fields continuously distributed along the fiber optic. The laying distance of temperature sensing fiber optic can reach tens of kilometers. The distributed fiber optic temperature measurement system has high spatial resolution and small error. If long-distance temperature measurement is required, it has higher cost-effectiveness and convenience compared to other fiber optic temperature measurement methods such as single point and multi-point.

Fiber optic temperature sensors are sensors used to sense the temperature of equipment that needs to be measured. There is a significant difference between high-quality temperature sensors on the market and general ones.

How to choose a good fiber optic temperature sensor?

Over the years, domestic fiber optic thermometers have been on par with foreign counterparts, mainly due to:

1. The development of domestic temperature measurement fiber technology is rapid.

For fiber optic temperature measurement, although not all industries require the use of fiber optic temperature sensors, many special industries, such as power, transformers, rail transit, Тощо., require the use of fluorescent fiber optic temperature sensors. Тому, manufacturers need to have an understanding of it in their products. Moreover, with the continuous development of domestic fiber optic sensing technology, it is necessary to have a certain understanding of the characteristics of fiber optic sensors, so the use of fiber optic sensors is also necessary.

2. Domestic fiber optic temperature sensors have high cost-effectiveness

Although the development of foreign fiber optic temperature sensors may be faster than that of domestic ones, the price of foreign fiber optic sensors is definitely higher than that of domestic fiber optic sensors, because there is a certain gap between the production cost of foreign countries and the cost of domestic sensor manufacturers. Fiber optic sensors are not necessarily better than domestic products, mainly because the performance and after-sales guarantee of fiber optic sensors are sufficient.

3. Widely applicable in the domestic market

The current development in China is not inferior to that of foreign countries. Domestic fiber optic thermometers can be widely used in various industries that require applications, and many temperature measurement environments require them. Тому, fluorescent fiber optic temperature sensors are becoming increasingly popular.

How reasonable is the price of domestically produced fiber optic temperature sensors? Although the price of fiber optic sensors may largely reflect the performance and quality of sensor transmitters, it is not necessarily the more expensive the better. The key is to choose a suitable temperature measurement equipment.

1. There are many types of fiber optic thermometers, and due to differences in their construction, prices may vary, resulting in differences in the data detected.

2. Although the popularity of domestically produced fiber optic temperature sensors may differ from that of foreign countries, their reputation is also better. This is because in China, maintenance and after-sales services are much more convenient compared to foreign products, which can avoid communication time that may affect product testing experiments. Тому, domestically produced fiber optic temperature sensors can be used.

3. The functions and prices of fiber optic temperature measurement systems are also related to a certain extent. The more functions there are, the higher the price will naturally be. For customers who require more functions, fiber optic temperature measurement sensors also need more functions, so a higher price is also acceptable for them.

4. After sales service guarantee for fiber optic temperature sensors.

When purchasing these, it is important to communicate well with the manufacturer. The after-sales service of a precision thermometer is more complex, so the after-sales fee will also be higher. Тому, negotiating with the temperature measurement manufacturer about after-sales service issues can also reduce costs.

5. В даний час, the prices of fiber optic temperature sensors in the market range from a few thousand yuan to tens of thousands of yuan, which are determined by the brand functions of the temperature sensors. If you choose, you can choose according to the cost of the data you need to test. The more functions you have, the higher the price you will need.