How to choose a high-quality distributed fiber optic temperature measurement system manufacturer, complete guide

Światłowodowy czujnik temperatury, Inteligentny system monitorowania, Rozproszony producent światłowodów w Chinach

When selecting high-quality distributed optical fiber temperature measurement system manufacturers, we should comprehensively consider the technical progressiveness of their products, performance indicators (such as temperature measurement accuracy, positioning accuracy, measurement length), market reputation, after-sales service and whether they can meet the customized needs of specific application scenarios.

1、 High quality standards for manufacturers of distributed fiber optic temperature measurement systems

1.1 Product performance aspect

Dokładność pomiaru temperatury
High precision temperature measurement is one of the key indicators for measuring distributed fiber optic temperature measurement systems. Na przykład, in some application scenarios that are sensitive to temperature changes, such as the petrochemical industry, it is necessary to accurately transmit temperature data of all temperature gradients underground. The temperature accuracy may require 0.01 or even lower to detect abnormal points through interpretation software. W systemie elektroenergetycznym, accurate temperature measurement is crucial for monitoring the operating status of equipment such as cables and bus ducts. Excessive accuracy error may lead to misjudgment of equipment overheating. Products with an accuracy of around ± 0.5 °C – ± 1 ℃ are generally more common.
positioning accuracy
This indicator reflects the system’s ability to locate temperature anomalies. In scenarios such as tunnels, large buildings, itd., when a fire or local overheating occurs, quickly and accurately locating the location of the abnormal point is the key to timely handling the problem. Some advanced systems can achieve a positioning accuracy of ± 0.05 Metrów (5 centimeters), while ordinary systems may be around ± 1 metr. The positioning accuracy is mainly limited by the device’s ability to collect data at a fast speed, which results in high positioning accuracy. This requires the device to have high-speed data collection capabilities.
Measure length
The length of fiber that can be matched with a single channel is also an important performance consideration factor. For some large-scale regional monitoring, such as long-distance transmission lines or oil field pipeline monitoring, longer measurement lengths are required. Jednak, an increase in measurement length may bring some problems. Na przykład, within 10km, the temperature accuracy of the head and tail is about 2-4 times, while at 20km, the temperature accuracy of the head and tail is about 6-10 times, indicating that the temperature accuracy of the head and tail is high and low, and the longer the fiber, the longer the measurement time will also increase.
Temperature sensing spatial resolution
Similar to the pixel resolution of an image, the level of temperature sensing spatial resolution determines whether the system can detect temperature changes in small hotspots in a timely manner. If the spatial resolution of temperature sensing is too low, small hotspots may not receive timely warnings during early heating, and it is already too late to report the location and temperature of the fire when it actually occurs. Obecnie, this performance indicator is widely troubled both domestically and internationally, with some limiting factors including the device’s ability to collect high-speed data, broadband optical pulses, bit limit for high-speed data acquisition, signal bandwidth, and optoelectronic detection capability.
Czas pomiaru
The measurement time refers to the time required to update all fiber temperature data. In the field of fire protection, there is a high requirement for measurement time. Ogólnie, within 1-3 Sekund, all fiber optic temperatures in a channel need to be updated and real-time judgment of whether there is a fire alarm; In the petroleum field, underground temperature measurement does not have such strict requirements for time, and the temperature data of the optical fiber can be updated every 2 minutes or even longer.

1.2 Product stability aspect

system stability
The distributed fiber optic temperature measurement system integrates computer, fiber optic communication, fiber optic sensing, optoelectronic control and other technologies, and needs to maintain stability during long-term operation. Na przykład, in fields such as electricity and oil, 24-hour uninterrupted temperature monitoring of equipment or environment is required, and the stability of the system directly affects the reliability of the monitoring data. A stable system can reduce monitoring interruptions caused by equipment failures and avoid missing important temperature change information.
Fiber quality
As a key component of temperature measurement systems, the quality of temperature sensing fibers is crucial. Fiber optic cables should have characteristics such as high temperature resistance, Odporność na korozję, and strong electromagnetic interference resistance. Na przykład, in the temperature monitoring of pipelines, storage tanks, and other equipment in the chemical industry, optical fibers need to be able to withstand complex chemical environments and possible high temperature situations; W systemie elektroenergetycznym, it is necessary to be able to operate normally in strong electromagnetic environments. Ponadto, the structure of the optical fiber should be stable and not easily broken. When bending and laying, it should also ensure that it does not cause excessive loss. Ogólnie, bending should be achieved with a circular arc greater than 3cm, otherwise it will affect the measurement accuracy.

1.3 Product Features

Alarm function
A comprehensive alarm function is an essential feature of high-quality products. Na przykład, a constant temperature alarm can issue an alarm in a timely manner when the temperature reaches the set value; Regional temperature difference alarm can detect abnormal temperature differences between different regions; If the temperature rises too quickly, a rapid alarm can be detected, which is crucial in fire warning; There are also alarm functions such as fiber breakage alarm and device abnormality, which can promptly inform users of system problems for quick maintenance and handling.
Visual display function
The system should be able to display the full range partition map, temperature distribution curve, and temperature variation curve of key monitoring points over time. This way, users can intuitively understand the temperature conditions in the monitoring area, making it easier to analyze and judge the temperature data. Na przykład, in temperature monitoring in large shopping malls, warehouses, and other places, through a visual interface, managers can quickly view the temperature situation in different areas and discover potential overheating areas in a timely manner.
Query function
It has the functions of querying, displaying, and printing historical data, and can directly query device information, operating parameters, statistical information, itd. on the system diagram. This is very helpful for analyzing temperature trends, evaluating equipment operating status, and conducting troubleshooting. Na przykład, in temperature monitoring of power cables, historical data can be queried to understand the temperature changes of cables at different time periods, thereby predicting the degree of cable aging and potential fault risks.
Analysis function
Capable of displaying historical trends, evaluating future trends, and providing maintenance reference information. This helps users take measures in advance to prevent possible temperature anomalies. Na przykład, in industrial production processes, analyzing temperature trends can optimize production processes, improve equipment lifespan, and increase production efficiency.

1.4 Product compatibility aspect

Communication interface compatibility
Should support multiple communication interfaces, such as RS232 RS485、 Ethernet, fiber optic, itd. This enables the system to connect and transmit data with different devices or control systems. In some complex industrial environments, there may be multiple types of equipment, and good communication interface compatibility can ensure that distributed fiber optic temperature measurement systems can be smoothly integrated into existing monitoring systems, achieving data sharing and interaction.
Multi host compatibility
Support the integration of temperature measurement hosts from multiple manufacturers and adapt to the linkage alarm systems of various manufacturers. In some large-scale projects, equipment from different manufacturers may be used. The multi host compatibility of the product can improve the flexibility and scalability of the system, making it convenient for users to combine and configure equipment according to their actual needs.

1.5 Product safety aspects

Intrinsic safety
The temperature sensing element is a temperature measuring optical fiber, and the average power of the optical signal transmitted internally is at the micro watt level, which is inherently safe. In some hazardous environments, such as oil depots, Kopalnie węgla kamiennego, itd., the inherent safety characteristics can avoid the danger of fire or explosion caused by electrical sparks generated by electrical equipment.
Anti-interference ability
The temperature measuring optical fiber is made of quartz, electrically insulated, and is not affected by any electromagnetic interference or emits electromagnetic waves, making it particularly suitable for various complex and strong electrical environments. Na przykład, in areas with strong electromagnetic interference such as substations and high-voltage cables, the system can still accurately monitor temperature.

1.6 Product adaptability aspect

Environmental adaptability
Whether it is high temperature, high humidity or corrosive environment, the product should be able to work normally. Na przykład, CFTTH rectangular communication armored temperature measuring optical cable has performance requirements such as high temperature, wilgotność, and corrosion, and can adapt to various harsh environments. It can operate stably in outdoor transmission lines, oil pipelines at the seaside, and other scenarios.
Application scenario adaptability
It can be widely applied in different fields, such as oil fields, transmission lines, construction engineering, fire protection, Metro, Petrochemicznych, itd. Different application scenarios may have different requirements for the product. Na przykład, in construction engineering, more attention may be paid to monitoring the distribution of indoor temperature, while in oil fields, more emphasis is placed on precise measurement and long-term stability of underground equipment temperature.

1.7 Product customization capability

Parameter customization
Customize product parameters based on customer needs, such as single channel measurement time, temperature measurement range, size, itd. Na przykład, different application scenarios may require different temperature ranges. In conventional environments, a temperature range of -40 °C -120 ℃ may be sufficient, but in some special high-temperature environments, such as equipment monitoring near steel smelters, products with a temperature range of -40 °C -250 ℃ may be required.
Function customization
Being able to customize functions according to customers’ special needs, such as special alarm logic, specific data display and analysis functions, itd. In some large-scale industrial projects, customers may have their own unique monitoring and management needs, and product manufacturers can provide customized features to better meet customers’ personalized requirements.

2、 How to evaluate the strength of manufacturers of distributed fiber optic temperature measurement systems

2.1 Technical research and development capability

R&D team
A strong R&D team is the core manifestation of a manufacturer’s technological strength. The educational background, professional knowledge structure, and work experience of R&D team members are important aspects for evaluation. Na przykład, Hunan Guangsheng Fiber Optic Sensing Technology Co., Ltd. has nearly 30% of its technical and R&D personnel, including 8 PhDs, over 30 master’s students, and more than 80 bachelor’s degree holders. Such a high-quality R&D team helps the company maintain competitiveness in technological innovation, product optimization, and other aspects.
Technological innovation achievements
Examine the innovative achievements of manufacturers in the field of distributed fiber optic temperature measurement technology, such as whether they have patented technology and whether they have participated in the formulation of industry standards. Na przykład, some companies may have unique innovative achievements in fiber optic sensing technology, signal processing algorithms, itd., which can improve product performance, such as improving temperature measurement accuracy and shortening measurement time.
R&D investment
Continuous R&D investment is the key to maintaining technological leadership. Understand the investment of manufacturers in research and development equipment, training of research and development personnel, and other aspects. Na przykład, some large enterprises will invest heavily in researching and developing new fiber optic materials, improving optical components for temperature measurement systems, itd., in order to enhance product performance and competitiveness.

2.2 Production and Manufacturing Capability

Progressiveness production equipment
Advanced production equipment can ensure product quality and production efficiency. Na przykład, using high-precision fiber drawing equipment can produce better quality temperature sensing fibers, while automated assembly production lines can improve the assembly accuracy and production speed of products.
Production process management
Scientific and rational production process management can ensure the stability of product quality. Manufacturers should have a comprehensive production process management system, including raw material inspection, quality control during the production process, and finished product inspection. Na przykład, enterprises that have obtained quality certifications such as ISO9001 usually have standardized production process management, which can effectively ensure product quality.
Production scale
A larger production scale often means that manufacturers have stronger supply capacity, lower production costs, and more mature production processes. Na przykład, some large fiber optic production enterprises can meet large-scale order demands and have cost advantages in raw material procurement, production equipment utilization, and other aspects.

2.3 Product Quality Assurance

quality certification
Whether the manufacturer has obtained relevant quality certifications, such as ISO9001 quality management system certification, industry-specific quality certification, itd. These certifications are recognition of the manufacturer’s product quality control system, indicating that their products meet certain standard requirements in design, production, installation, and service.
Product testing methods
Comprehensive product testing methods can ensure product quality. Manufacturers should have advanced testing equipment and methods to comprehensively test various performance indicators of their products. Na przykład, in the production process of optical fibers, it is necessary to test the optical and mechanical properties of the fibers to ensure that they meet product standards.

2.4 After sales service capability

technical support
Providing comprehensive technical support is an important aspect of measuring a manufacturer’s after-sales service capability. Na przykład, when encountering problems during product installation, debugging, and use, manufacturers can provide timely technical consultation and solutions. Some manufacturers also provide training services for customers to help them better use and maintain their products.
Repair service
Quick response maintenance services can reduce the impact of equipment failures on users. Manufacturers should establish a comprehensive maintenance service network that can promptly repair or replace faulty equipment. Na przykład, in some large-scale projects, if the distributed fiber optic temperature measurement system fails, the manufacturer can dispatch technical personnel to the site for repair in a short period of time.
Product upgrade service
With the development of technology, products need to be constantly upgraded to meet the growing needs of users. Manufacturers should be able to provide product upgrade services to customers, such as upgrading software systems to add new features or improving hardware to enhance product performance.

2.5 Market reputation and customer evaluation

market share
A higher market share often means that the manufacturer’s products have gained widespread recognition in the market. By understanding the market share of manufacturers in the distributed fiber optic temperature measurement system market, the competitiveness of their products can be preliminarily judged. Na przykład, in a specific industry field, if a manufacturer’s product occupies a large market share, it indicates that their product has certain advantages in performance, cena, service, and other aspects.
Customer Case
Analyzing customer cases of manufacturers can help understand the performance of their products in practical applications. Na przykład, distributed fiber optic temperature measurement systems have been applied in multiple projects such as storage bus temperature measurement projects and intelligent bus temperature measurement projects. These successful customer cases demonstrate that their products can meet customer needs in different application scenarios.
Customer reviews
Collect customer evaluations of the manufacturer’s products and services, including feedback on product performance, stability, after-sales service, and other aspects. Customer evaluation information can be obtained through online searches, industry forums, customer surveys, i inne metody. The more positive customer evaluations, the higher the quality of the manufacturer’s products and services.

3、 Case Study of High Quality Distributed Fiber Optic Temperature Measurement System Manufacturer

3.1 Fuzhou Huaguang Tianrui Optoelectronics Technology Co., Ltd

Company Overview
Dedicated to the research and development of fiber optic perimeter intrusion detection systems and distributed fiber optic temperature measurement systems, providing technical support and services for safety monitoring in various fields such as comprehensive pipe galleries, power, bridges, railways, Tunele, Petrochemicznych, itd. As a manufacturer of fiber optic temperature measurement related products, Huaguang Tianrui has a profound foundation and strong capabilities in fiber optic technology research and development, production and manufacturing.
Product Features
Its distributed fiber optic temperature measurement system is based on the nonlinear Raman effect in optical fibers, achieving the detection of temperature information along the fiber optic direction. The product performs well in terms of temperature measurement accuracy, positioning accuracy, itd., and can meet the needs of different application scenarios. W tym samym czasie, the company continues to invest in research and development to improve product performance, such as making continuous efforts to improve measurement efficiency and reduce costs. In terms of application, the company provides effective temperature monitoring solutions for comprehensive pipe galleries, power and other fields, which helps ensure the safe operation of equipment and facilities in these areas.
Technology research and innovation
We have a professional R&D team that constantly explores innovative applications of fiber optic technology in the field of temperature measurement. Their research achievements in fiber optic materials, sensing technology, itd. will help improve the performance of distributed fiber optic temperature measurement systems. Na przykład, by improving the manufacturing process of optical fibers and enhancing their sensing performance, the sensitivity and accuracy of temperature measurement systems can be improved.
Market competitiveness and customer recognition
In the market, distributed fiber optic temperature measurement systems have gained a certain market share due to their excellent product quality, wide application areas, and comprehensive after-sales service. Its products have been widely used by many customers in various projects, such as cable temperature monitoring in power systems and fire warning in tunnels, and have been recognized and praised by customers.

3.2 Fuzhou Yingnuo Electronic Technology Co., Ltd

Focused on the production of DTS distributed fiber optic temperature measurement system. The company has its own production equipment and technical team, and has a certain reputation and market position in the field of fiber optic communication.
Product Features
The armored temperature measuring optical cable adopts mode sensitive temperature fiber as the core material, which has high transmission rate and low signal loss, and can adapt to harsh environments such as high temperature, wilgotność, and corrosion. The supporting DTS distributed fiber optic temperature measurement system utilizes the optical principles of optical fibers to obtain temperature information in a distributed manner throughout the entire fiber optic system through the fiber optic jitter scattering effect. This system has the function of displaying and alarming temperature distribution maps, and can be widely used in fields such as oil fields, transmission lines, and construction engineering to provide early warning and handle potential abnormal situations.
Technology research and innovation
The company focuses on technology research and development, and its technical team continuously optimizes product performance. By improving production processes, the mode field diameter and loss tolerance of optical fibers have been increased, effectively improving the quality and distance of optical signal transmission and enhancing the stability and reliability of optical fiber temperature measurement systems. W tym samym czasie, the company is constantly exploring the application of DTS distributed fiber optic temperature measurement system in new scenarios, expanding the market scope of its products.
Market competitiveness and customer recognition
By strictly controlling product quality and obtaining ISO9001 and other quality certifications, we ensure product quality and production efficiency. W dodatku, the company also provides full technical support and after-sales service to provide customers with solutions, which makes its products highly competitive in the market. In customer applications such as oil fields and transmission lines, its products have been recognized by customers and have played an important role in ensuring the normal operation of these fields.