How to purchase fiber optic temperature sensors, complete guide, solution, tootja

Kiudoptiline temperatuuriandur, Intelligentne seiresüsteem, Jaotatud kiudoptiline tootja Hiinas

1、 Purchase channels for Kiudoptilised temperatuuriandurid
（1） Online channels
Sensor professional e-commerce platform
We can specifically search and compare fiber optic temperature sensor products. On the platform, different product attributes such as company, delivery type, hind, rakendus, and product type can be used to screen and quickly and accurately find the fiber optic temperature sensor that suits your needs.
As a large e-commerce platform, there is a dedicated sales channel for fiber optic temperature sensors. On the channel, you can view price lists, quotes, and other information for different brands and models of fiber optic temperature sensors, providing comprehensive price references for purchasing.

Manufacturer’s official website
Many fiber optic temperature sensor manufacturers sell their products on their official websites. Näiteks, FJINO will provide purchase information for its fiber optic temperature sensor on its official website. The advantage of purchasing from the manufacturer’s official website is accurate product information, direct access to the manufacturer’s technical support and after-sales service, and the ability to ensure the purchase of genuine products.
Huaguang Tianrui Company in Fuzhou, Fujian Province, Hiina, if it produces fiber optic temperature sensors (according to the provided reference information, there is a fiber optic temperature sensor product SR-C), its official website is also one of the purchasing channels. On the official website, you can learn about the detailed technical parameters and application cases of the product, which facilitates the selection of suitable products according to your own needs.
（2） Offline channels
Sensor dealers
Some professional sensor dealers sell fiber optic temperature sensors. They usually represent multiple brands of products and can provide customers with different types and prices of fiber optic temperature sensors to choose from. Näiteks, in some industrially developed electronic component markets, there are specialized sensor distributor stores where sales personnel can recommend suitable fiber optic temperature sensors based on customer needs.
Industry exhibitions
At exhibitions related to industrial automation, instrumentation, and other industries, fiber optic temperature sensor manufacturers or distributors will participate. Näiteks, at some international industrial exhibitions, advanced fiber optic temperature sensor products from different countries and regions can be displayed, and direct communication with manufacturers or sales representatives can be conducted to understand product performance, price and other information, and reach purchase intentions or directly purchase products at the exhibition.
2、 Key points for selecting fiber optic temperature sensors
（1） Temperature measurement range
Clearly define the temperature range of the usage scenario
Different application scenarios have different requirements for temperature measurement range. Näiteks, in ordinary industrial environment monitoring, it may only be necessary to measure the temperature range of -20 ℃ to 80 °C; In some special industrial fields, such as temperature monitoring near high-temperature furnaces, it may be necessary to measure temperatures of 800 ℃ or even higher. If it is in the medical field, such as human body temperature monitoring, the measurement range may be around 30 °C -45 °C. So the required temperature measurement range should be determined based on the actual usage scenario.
Näiteks, FJINO’s oil immersed fiber optic temperature sensor is suitable for temperature monitoring in transformers, and its operating temperature range is specific to the transformer environment.

Consider the dynamic range of temperature changes
In addition to the static temperature measurement range, it is also necessary to consider the dynamic range of temperature changes during use. If in a certain application scenario, the temperature will rapidly rise or fall, such as in some chemical reaction process monitoring, the temperature may rise sharply from room temperature to several hundred degrees in a short period of time, then fiber optic temperature sensors need to be able to quickly and accurately respond to this temperature change and maintain measurement accuracy throughout the entire dynamic temperature change range.
（2） Measurement accuracy
Determine the required accuracy
Determine measurement accuracy based on application requirements. In some scientific experiments that require extremely high temperature, fiber optic temperature sensors with an accuracy of ± 0.1 ℃ or even higher may be needed; In some ordinary environmental temperature monitoring, an accuracy of ± 1 ℃ may be sufficient. Näiteks, in experiments studying superconducting materials, even small temperature changes can have a significant impact on the experimental results, so high-precision temperature measurement is required.

（3） Response speed
Rapid response demand scenario
In some scenarios that require real-time monitoring of temperature changes, such as rapid response production processes in industrial automation or rapid temperature detection in fire alarm systems, the response speed of fiber optic temperature sensors is crucial. Näiteks, in a fire alarm system, if the fiber optic temperature sensor cannot respond quickly to a sharp rise in temperature, it may delay the time for fire alarm and cause serious consequences.

（4） Environmental adaptability
Different environmental factors
Electromagnetic environment is an aspect that needs to be considered. In environments such as hydropower stations, power transformers, and electric locomotives that are susceptible to electromagnetic interference, it is necessary to choose products that are not affected by electromagnetic interference, such as fiber optic temperature sensors, to ensure measurement accuracy and stability.
Corrosive environment is also an important factor. If it is for long-term monitoring of marine or nearshore structures, or in some chemical production environments, it is necessary to choose fiber optic temperature sensors that can resist corrosive environments. Näiteks, the casing of some fiber optic temperature sensors is made of special anti-corrosion materials, or the fiber itself has anti-corrosion properties.
For mechanical stress environments, such as strain monitoring in some building structures, if temperature measurement is also required, then fiber optic temperature sensors must be able to withstand certain mechanical stresses without affecting measurement performance.
Special environmental requirements
In some environments with explosion-proof requirements, such as flammable and explosive places like oil and gas extraction, it is necessary to choose distributed fiber optic temperature sensors that are non explosive and meet the standards. Näiteks, FJINO’s fiber optic temperature sensor meets this standard and can be safely used in such environments.
3、 Recommended brands of high-quality fiber optic temperature sensors

Fuzhou Yingnuo (FJINO)
Fuzhou Yingnuo was founded in 2011 and is a high-tech enterprise under China Information and Communication Technology Group Co., Ltd., specializing in fiber optic sensing technology and IoT application solutions. We have core independent intellectual property rights in fiber optic sensitive materials, key core components, intelligent instruments, and advanced sensing systems. We provide fluorescent temperature sensor products, fiber optic oil tank fire alarm systems, fiber optic tunnel fire alarm systems, and other series of monitoring systems and solutions. It is in a leading position in the field of domestic fiber optic sensing technology, and its products are widely used in large-scale engineering and industrial projects in China.
Huaguang Tianrui
Huaguang Tianrui has a high reputation in fiber optic temperature measurement technology, and its fiber optic temperature measurement technology has won widespread recognition in the market for its high precision, high reliability, and wide application range. Its products can be used for environmental monitoring, such as temperature monitoring of water bodies such as rivers and lakes, as well as temperature monitoring of industrial equipment such as switchgear. Huaguang Tianrui is constantly innovating in technology and is expected to continue playing an important role in the international fiber optic temperature sensor market.

（2） Price comparison of different brands
High end brand prices
High end brands that invest heavily in research and development, production processes, quality control, and have a high brand awareness may have relatively high prices for their fiber optic temperature sensors. Näiteks, other sensor products from Keyence are often positioned as high-end products in the market, and their fiber optic temperature sensors may also follow this pricing strategy to meet the needs of customers who have extremely high requirements for product quality and performance and sufficient budget.
Cost effective brand price
While ensuring product quality, there may be certain advantages in cost control, such as utilizing domestic raw material supply, labor and other resources, which may result in relatively more cost-effective prices. Its fluorescent temperature sensor products can meet the requirements of the domestic market for fiber optic temperature sensors in terms of accuracy and environmental adaptability, and the price is relatively reasonable, suitable for cost sensitive customers.
（3） Analysis of Price Influencing Factors
Technical research and development costs
The manufacturing process of high-performance fiber optic temperature sensors is complex and requires significant research and development costs. Näiteks, when developing fiber optic temperature sensors that can accurately measure extreme temperature environments, it is necessary to study special fiber optic materials, new measurement principles, or improve existing sensor structures. These research and development efforts require investment in resources such as funds and manpower, which will increase the cost of the product, reflected in the high price of the product.
Production scale and cost control
Large scale enterprises can reduce the cost per unit of product through large-scale production. Näiteks, some large international brands, due to their extensive global market and large production scale, can reduce costs by optimizing production processes and bulk purchasing raw materials. On the contrary, some small brands or newly entered enterprises may have relatively high product prices due to their small production scale and relatively high costs. Lisaks, enterprises with strong cost control capabilities, such as effectively managing production equipment and reducing waste in the production process, can also lower product prices to a certain extent.
5、 Precautions for purchasing fiber optic temperature sensors
（1） Fiber optic related precautions
Numerical aperture (NA) of optical fiber
From the perspective of improving the coupling efficiency between the light source and the optical fiber, a larger NA is required, but the larger the NA, the more severe the mode dispersion of the optical fiber, and the smaller the capacity for transmitting information. For most fiber optic temperature sensors, there is no issue with information capacity, and the general requirement is 0.2 ≤ NA<0.4. If the numerical aperture of the optical fiber does not meet the requirements, it may affect the performance of the sensor, such as reducing the efficiency of optical signal transmission, thereby affecting the accuracy of temperature measurement.
Fiber optic transmission loss
Although most distances in fiber optic temperature sensor systems are relatively short, with the longest being less than 4M and the shortest being only a few millimeters, fiber optic transmission loss also needs to be considered. Fiber optic cables with a general loss of less than 10dB/km can be used. If the transmission loss of the fiber optic cable is too high, it may cause severe attenuation of the optical signal during transmission, affecting the sensitivity and measurement range of the sensor. When choosing a fiber optic temperature sensor, it is important to understand its transmission loss characteristics, especially in long-distance measurement or applications that require high signal strength.
（2） Light source aspect
Light source type and characteristics
Incandescent light sources are inexpensive, easy to obtain, and convenient to use, but their radiation density is relatively low, their stability is poor, and their lifespan is short; Gas laser is a highly coherent light source that is easy to achieve single-mode operation, with very narrow linearity, high radiation density, high coupling efficiency with single-mode fiber, and relatively low noise; Solid state lasers such as solid-state rubidium ion lasers have small size, durability, high efficiency, high radiation density, uniform and relatively narrow spectra, but their coherence and frequency stability are not as good as gas lasers; Semiconductor lasers are important light sources for fiber optic sensors due to their compact size, durability, long lifespan, high reliability, moderate radiation density, and simple power supply. When purchasing fiber optic temperature sensors, it is necessary to understand the type and characteristics of the light source used in the sensor, and choose the appropriate product according to actual needs. Näiteks, in long-term temperature monitoring scenarios that require high stability, fiber optic temperature sensors using gas lasers or semiconductor lasers as light sources may be better.
Matching of light source and optical fiber
The light source must be matched with the optical fiber to achieve the best coupling rate. If the light source is not matched with the optical fiber, it will result in low optical signal transmission efficiency and affect the performance of the sensor. When purchasing, inquire with the manufacturer about the matching of the light source and fiber optic to ensure that the selected fiber optic temperature sensor meets the requirements in this regard.
（3） Photoelectric detector related
Performance parameters of the detector
The sensitivity should be high within the working band, and the noise introduced by the detector must be small. Seetõttu, devices with low dark current, leakage current, and parallel conductance should be selected as much as possible. Lisaks, high reliability, good stability, small size, easy assembly, easy coupling with optical fibers, low bias voltage or bias current, and low price are also important criteria for choosing photodetectors. When purchasing a fiber optic temperature sensor, it is important to understand whether the performance parameters of its photodetector meet the application requirements. Näiteks, in scenarios that require high detection of weak light signals, it is necessary to choose fiber optic temperature sensor products with high sensitivity and low noise photodetectors.
Compatibility between detector and overall system
The photodetector should be compatible with the entire fiber optic temperature sensor system, including compatibility with the fiber optic, valgusallikas, and subsequent data processing and display devices. If compatibility is poor, there may be issues such as signal transmission errors and inaccurate data processing. When purchasing, it is important to ensure good compatibility between the photodetector and the entire system. Relevant information can be obtained by checking the product’s technical specifications or consulting the manufacturer.
（4） Adaptability to the usage environment
Installation environment requirements
Fiber optic temperature sensors should not be installed in areas with direct sunlight, high humidity that may cause frost, corrosive gases, or direct vibration or impact on the body. If installed in an environment that does not meet the requirements, it may damage the sensor, affecting its service life and measurement performance. Näiteks, in chemical production workshops, if there are corrosive gases, it is necessary to choose fiber optic temperature sensors with corrosion-resistant shells or corrosion-resistant optical fibers, and avoid installing them in areas with high gas concentrations.
electromagnetic compatibility
In environments with strong electromagnetic interference, such as near substations or around large motor equipment, it is necessary to choose fiber optic temperature sensors with good electromagnetic compatibility. Näiteks, Scaime’s fiber optic temperature sensor is not affected by electromagnetic interference and can work normally in such strong electromagnetic interference environments. If the electromagnetic compatibility is poor, the sensor may be affected by electromagnetic interference, resulting in inaccurate or fluctuating measurement data.
（5） Product certification and standards
Industry certification
Check if the product has relevant industry certifications, such as in certain industries (such as healthcare, petrochemicals, jne.), which may require the product to meet specific safety, quality, and other standards. Näiteks, fiber optic temperature sensors used in flammable and explosive places such as oil and gas extraction need to comply with ATEX standards to ensure safety in hazardous environments. If the product does not have the corresponding certification, there may be safety hazards or non-compliance with industry standards during use.
quality standard
Understand whether the product meets relevant quality standards, such as international standards, national standards, or industry standards. Products that meet quality standards are more guaranteed in terms of performance, reliability, and other aspects. When purchasing, you can view the product’s quality certification mark or request relevant quality standard documents from the manufacturer.