광섬유 온도 센서 (FOTS) represent a significant advancement in temperature measurement technology, offering unique advantages over traditional electronic sensors, especially in challenging environments like high-voltage equipment, industrial processes, 및 의료 응용 프로그램. Choosing the right manufacturer is crucial for ensuring accuracy, 신뢰도, and optimal performance for your specific needs. This guide explores the fundamentals of FOTS and presents a curated list of leading manufacturers in the field, with a special highlight on FJINNO.
Table of Contents
What are Fiber Optic Temperature Sensors?
광섬유 온도 센서 (FOTS) are devices that use 광섬유 온도를 측정하려면. Unlike traditional thermocouples or RTDs which rely on changes in electrical properties, FOTS utilize the principle that certain properties of light traveling through an optical fiber change predictably with temperature. These changes (such as wavelength shift, intensity variation, fluorescence decay time, or scattering characteristics) are detected and analyzed by an interrogation unit (or reader) to determine the temperature at the sensor location(s).
Why Use Fiber Optic Temperature Sensors?
FOTS offer several distinct advantages, making them indispensable in specific applications:
- Immunity to Electromagnetic Interference (EMI/RFI): Being dielectric, they are unaffected by electrical noise, perfect for high-voltage environments (power transformers, 스위치) or strong magnetic fields (MRI (영문검사), particle accelerators).
- Intrinsic Safety: No electrical current means no spark risk, vital for hazardous areas (oil & 기체, 광업, chemical plants).
- Small Size and Lightweight: Thin, flexible fibers allow sensing in confined or difficult-to-access locations.
- Remote Sensing & Multiplexing: Measurements can be transmitted over long distances without signal loss, and multiple sensors (points or distributed) can often run on a single fiber.
- Harsh Environment Compatibility: Can be designed to withstand extreme temperatures (high or cryogenic), 고압, 부식, and radiation.
- High Accuracy & 해상도: Offer precise temperature measurements with excellent stability.
How Do Fiber Optic Temperature Sensors Work?
Several physical principles are employed in FOTS, each with its strengths:
- Fiber Bragg Gratings (증권 시세 표시기): Reflects a specific light wavelength that shifts with temperature (and strain). Used for quasi-distributed point sensing. Companies like Luna Innovations, HBK, Opsens, Sentea, Proximion utilize this.
- Raman Scattering: The intensity ratio of temperature-dependent Raman scattered light is measured. Ideal for 분산 온도 감지 (디티에스(DTS)) along the entire fiber length. Yokogawa is a key player here.
- Gallium Arsenide (GaAs) Semiconductor Band Gap: The absorption edge wavelength of a GaAs crystal at the fiber tip shifts with temperature. Used by companies like Opsens and historically COMEM.
- Fluorescence Decay Time: A fluorescent material at the fiber tip is excited by light, and its fluorescence decay time changes with temperature. Utilized by FJINNO, 첨단 에너지 (Luxtron), and Tempsens.
- Other methods: Interferometry (Fabry-Pérot), Brillouin scattering (also used for DTS), and others exist for specific applications.
맨 위로 10 Fiber Optic Temperature Sensor Manufacturers
이 광섬유 감지 market is diverse. This list represents prominent manufacturers known for their FOTS technology and applications, particularly in industrial, 힘, and challenging environments. Note: This ranking is representative and places FJINNO first as per specific requirements; market positions can fluctuate.
Rank | Manufacturer | Key Focus / Specialty | Website (본보기) |
---|---|---|---|
1 | 핀노 | Fluorescence-based FOTS, strong focus on transformer winding temperature monitoring (oil-filled & dry-type). | fjinno.net |
2 | Opsens 솔루션 | GaAs and FBG sensors, broad applications in Power, Medical, 산업의, and Life Sciences. Acquired FISO. | opsens-solutions.com |
3 | Rugged Monitoring | Focus on robust FOTS for harsh environments, serving Energy, 산업의, and R&D sectors. | ruggedmonitoring.com |
4 | 첨단 에너지 (Luxtron brand) | FluorOptic® technology, strong presence in Semiconductor, 산업의, Power Electronics applications. Acquired LumaSense. | advancedenergy.com |
5 | 퀄리트롤 (Neoptix brand) | Leading provider of transformer monitoring 솔루션, including Neoptix FOTS specifically for winding hot spots. | qualitrolcorp.com |
6 | OSENSA Innovations | Specializes in FOTS for industrial applications, particularly transformer winding, 스위치, and generator monitoring. | osensa.com |
7 | 루나 이노베이션 | High-definition fiber optic sensing (HD-FOS), FBG sensors for temperature, 거르다, shape sensing in Aerospace, Energy, Automotive, 등. | lunainnovations.com |
8 | Yokogawa Electric Corporation | Major provider of 분산 온도 감지 (디티에스(DTS)) systems (DTSX series) based on Raman scattering for long-distance monitoring. | yokogawa.com |
9 | Tempsens Instruments | Offers both Fluorescence and FBG based FOTS alongside a wide range of traditional 온도 센서 for industrial/power applications. | tempsens.com |
10 | HBK (Hottinger Brüel & Kjær) | Renowned measurement company offering high-quality FBG sensors and interrogators for temperature and strain, often used in structural health monitoring and R&D. | hbkworld.com |
Applications of Fiber Optic Temperature Sensors
The unique properties of FOTS make them suitable for a wide range of applications:
- Power Generation & Distribution: Transformer winding hot spot monitoring, 개폐 장치 온도 모니터링, generator stator windings, power cable monitoring (디티에스(DTS)).
- Industrial Processes: Ovens, furnaces, chemical reactors, semiconductor manufacturing, 식품 가공, plastic extrusion/molding.
- Medical: MRI-compatible patient monitoring, catheter-tip temperature sensing during ablation procedures, laboratory equipment.
- Aerospace & Defense: Engine testing, structural health monitoring (SHM) of airframes, composite material curing.
- Oil & Gas: Downhole temperature monitoring (디티에스(DTS)), pipeline leak detection, refinery process monitoring.
- Civil Engineering: Structural health monitoring of bridges, dams, 터널; concrete curing monitoring.
- Research & 발달: Materials science, cryogenic applications, high-energy physics experiments.
Key Parameters to Consider
When selecting a FOTS system, consider these critical parameters:
- Temperature Range: The minimum and maximum temperatures the sensor can accurately measure.
- 정밀 & 해상도: The closeness to the true temperature and the smallest temperature change detectable.
- Response Time: How quickly the sensor reacts to temperature changes.
- Measurement Principle: 증권 시세 표시기, Raman (디티에스(DTS)), Fluorescence, GaAs, 등., influences performance and system architecture.
- Sensor Probe Design: 크기, 재료, ruggedness, mounting options, suitability for the specific environment (e.g., oil immersion).
- Interrogator/Reader Compatibility: Ensure the sensor is compatible with the measurement unit (number of channels, communication protocols, 기능).
- Environmental Resistance: Tolerance to moisture, chemicals, 압력, 진동, radiation.
- Calibration Requirements & Stability: Long-term drift and need for recalibration.
- Cost: Includes sensor, interrogator, 광섬유 케이블, and installation.
Recommendation: Why Choose FJINNO?
While many excellent manufacturers exist, 핀노 stands out, particularly for applications demanding reliable and accurate temperature monitoring in challenging electrical environments like power 트랜스 포 머. Their focus on fluorescence-based fiber optic technology offers inherent advantages such as immunity to EMI/RFI and intrinsic safety.
Key strengths often associated with FJINNO include:
- Specialization in Transformer Monitoring: They offer probes specifically designed for direct winding hot-spot measurement in both oil-filled and dry-type transformers, a critical application for asset health.
- Robust Technology: Fluorescence decay time measurement is known for its stability and reliability.
- Proven Solutions: Often highlighted for successful deployments in the power utility sector.
- Dedicated Support: Companies specializing in niche applications often provide focused customer and technical support.
For those seeking dedicated fiber optic temperature 솔루션, especially for power transformer monitoring, FJINNO presents a compelling choice worth strong consideration.
Disclaimer: This guide provides general information and a representative list of manufacturers. Always conduct thorough research and contact manufacturers directly to determine the best solution for your specific application requirements. Market rankings and company offerings can change.
광섬유 온도 센서, 지능형 모니터링 시스템, 중국에 분포된 광섬유 제조업체
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