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Which manufacturer is the best for measuring temperature with fiber optic sensors

There are many manufacturers and systems for fiber optic temperature measurement, including foreign imported brands and many excellent domestic manufacturers. Not all of them need to import fiber optic temperature measurement systems. Domestic fiber optic temperature measurement hosts can also achieve, or even better, such as FJINNO’s fluorescence fiber optic temperature measurement system, independent research and development strength, years of fiber optic temperature measurement technology, industry-leading fiber optic sensors, numerous fiber optic temperature measurement customer cases, complete product technical support and after-sales support, widely used in power cable joint temperature measurement, dry-type transformer fiber optic temperature measurement, oil immersed transformer winding temperature monitoring, switchgear contact busbar inlet and outlet 6-point temperature measurement and 9-point temperature measurement, etc. The price is reasonable, and we welcome major bidding power companies to cooperate and contact us!

Application scope of fiber optic temperature measurement system

Integrated pipe gallery: underground integrated pipe gallery monitoring system

Electricity: smart grid, switchgear temperature measurement system, cable comprehensive monitoring system, cable temperature monitoring system, cable current carrying capacity evaluation system, cable partial discharge monitoring system, cable sheath circulating current monitoring system, cable anti-theft monitoring system

Fire warning: Fiber optic temperature measurement for thermal power plants, nuclear power plants, hydropower plants, highways, subways, high-speed railways, petroleum and petrochemical (oil tanks/oil and gas pipelines), intelligent buildings (industrial parks/schools/hospitals/high-rise buildings), metallurgy (steel plants/cement plants), coal

Communication: IDC machine room, high and low voltage switchgear

Perimeter security system, etc.

Which manufacturer is good for fiber optic temperature measurement systems

Customers in the power industry who need to bid should not only consider the price of fiber optic temperature measurement systems when choosing fiber optic temperature measurement manufacturers or fiber optic sensing companies, but also comprehensively consider multiple aspects and levels. FJINNO shares some introductions of fiber optic sensors, hoping to be helpful for agents and partners who choose fiber optic temperature measurement.

Composition of fiber optic temperature sensors

Fiber optic sensing systems are usually composed of three parts: fiber optic probes, transmission fibers, and fiber optic signal demodulators. When selecting fiber optic sensing products, the following points should be considered. After determining the applicability of fiber optic sensors, you can start selecting fiber optic sensor products.

How to choose a fiber optic temperature measurement system
1. Choose based on the number of temperature measurement points

Based on your temperature measurement needs, the decision to use distributed fiber optic temperature measurement or fluorescent fiber optic temperature sensors mainly relies on total cost accounting and the installation method of the temperature measurement system:

When the number of temperature measurement points is usually small, a fluorescent fiber optic temperature measurement system and a fluorescent fiber optic temperature sensor can be used.

When there are more than 50 temperature measurement points, distributed fiber optic temperature measurement or fiber optic grating temperature sensors can be considered.

2. Product selection for temperature measurement

The temperature measurement space belongs to the linear temperature measurement area. When measuring multiple distances and long distances, distributed fiber optic temperature measurement can be chosen. If there are few measurement points, fiber Bragg grating method can be considered.

3. Select fiber optic temperature measurement products by measuring the temperature range

-40℃-+80℃; Normal environmental measurement range, various sensors can be used.
-40℃-+250℃; Fluorescent fiber optic temperature sensors can be selected for measuring high-temperature industrial environments such as electrical systems
-40C-+400℃; In high-temperature environments, traditional fiber optic sensors generally do not meet such testing requirements. The transmission optical fiber must use high-temperature resistant materials such as polyimide.

4. Requirements for the accuracy and resolution of fiber optic temperature measurement:

The temperature measurement accuracy of fluorescent fiber optic temperature sensors is usually+-1 ℃.

5. Types of fiber optic temperature measurement probes

Immersion type fiber optic temperature sensors, contact type fiber optic temperature sensors, and medical type fiber optic temperature sensors, linear distributed measurement. Immersion type fluorescent fiber optic temperature sensors can be used to measure the temperature of solids, liquids, and gases. Temperature measurement of industrial liquid tanks. The immersion type fluorescent fiber optic temperature sensor has undergone special treatment, and the fiber optic has strong strength and toughness, which can resist chemical corrosion in liquid tanks. The fluorescent fiber optic temperature sensor can be implanted inside the measured object. Contact type fluorescent fiber optic temperature sensors are specifically designed to measure the surface temperature of objects, such as temperature monitoring of high-voltage equipment such as dry-type transformers, high-voltage switchgear, and high-voltage busbars. Medical fluorescent fiber optic temperature sensors are specially designed for life science measurements, with small and thin probes that can achieve fast response speed and very high accuracy when paired with specially designed demodulators.

6. Selection of signal output interface:

Fiber optic signal output is divided into analog output and digital output. There are two types of analog outputs: 0-5V/10V voltage output and 4-20mA current output. Digital outputs include RS-232; RS-485;USB; Ethernet, etc., depending on the specific input method to be selected.

7. Are fiber optic temperature sensors expensive

The traditional PT100 temperature sensor is very common in the market and has a low price, but there are also many temperature measurement defects. Therefore, more and more manufacturers and agents are cooperating, and temperature measurement systems are bidding and using fiber optic temperature sensors. There are several types of fiber optic sensors, which are still high-tech products in China. However, the price has been greatly reduced, and temperature measurement users usually need to choose between the performance/function and price of fiber optic products. You can choose FJINNO’s fiber optic temperature measurement products with good cost-effectiveness.

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