Nangunguna 10 mga tagagawa ng fiber optic temperature sensors

This article introduces the principle of fiber optic temperature sensors, the top 10 manufacturers of fiber optic temperature sensors in temperature measurement, and a list of the best fiber optic temperature sensor products.

The temperature measurement principle of fiber optic temperature sensors

The fluorescence temperature measurement device manufactured based on the functional relationship between fluorescence afterglow lifetime and temperature has advantages that traditional temperature measurement methods cannot compare with.

The basic principle of fluorescence temperature measurement

When a substance is excited, such as by short wavelength visible or ultraviolet light, electric field excitation, or chemical reactions, it will absorb and store energy, and transition to an excited state with a certain vibrational energy level through the ground state. But the excited state is not stable and may return to equilibrium, and when the external excitation source stops working, the luminescence phenomenon will continue for a period of time, which is called afterglow. Bilang karagdagan, during the deactivation process of fluorescent molecules, unstable excited state molecules will transition from high energy levels to low energy levels through energy level transitions, and the excess energy will emit light in the form of electromagnetic radiation. Samakatuwid, according to the different excitation methods, it can be divided into photoluminescence, electroluminescence, chemiluminescence, and bioluminescence.

Ayon sa batas ni Planck, when the energy of the incident light is received by the luminescent material, it will excite electrons in the material to produce electron level transitions, and this process will produce outgoing light with a wavelength of λ. The formula for the energy difference between high and low energy levels is:

E2-E1=k λ v=kf

In the formula: E1- the energy of the electron at a lower energy level;

E2- Energy of electrons at higher energy levels;

K – Planck constant;

V – the propagation speed of light in vacuum;

F – frequency of light;

λ – The wavelength of the emitted light.

Due to E1 and E2 being in different energy bands, they represent light in a certain band, while the energy in the molecule includes rotational energy generated by electrons and vibrational energy caused by axial elastic vibrations between nuclei. Samakatuwid, when molecules absorb light radiation, after quantum transitions, the electron energy will rise from the ground state to a higher energy level, and the rotational energy and vibrational energy will change simultaneously, causing the three energies to interact with each other. After the incident light disappears, the luminescent material will continue to emit light for a period of time, and the emitted light is fluorescence; High frequency and short wave light energy will excite long wave and low frequency light, and follow Stokes’ law.

The basic theoretical basis of fluorescence measurement method is that when the intensity of the fluorescence linear spectrum shows monotonicity with temperature, and the temperature of the fluorescent substance determines the time of the light quenching process, fluorescence temperature measurement can be carried out. Samakatuwid, it is generally divided into fluorescence intensity temperature measurement method, fluorescence lifetime temperature measurement method, and laser induced fluorescence method. Sa kanila, the fluorescence lifetime temperature measurement method is not easily affected by the intensity of the excitation light source, coupling degree, and fiber transmission efficiency in the temperature measurement process, and has more obvious advantages in use. The temperature measurement principle is that after the excitation light source is removed, the time for the fluorescent substance to continuously emit fluorescence is called the fluorescence lifetime, which depends on the lifetime of the excited state. The fluorescence lifetime of fluorescent substances is related to the corresponding temperature within a certain temperature range. Fluorescence lifetime refers to the time it takes for the fluorescence intensity to decay to 1/e of its original intensity when the excitation light source is cut off, and its relationship with temperature can be expressed as:

τ (T)=1+e – Δ E/(KT) Rs+RTe – Δ E/(KT)

In the formula: Rs, RT, K, Δ E – constant;

T – thermodynamic temperature.

From this, it can be seen that the time constant of fluorescence afterglow decay is a single valued function of temperature and is only related to temperature.

Nangunguna 10 mga tagagawa ng fiber optic temperature sensors

1、Fuzhou Innovation Electronic Scie&Tech Co., Ltd.

3、Luna Inobasyon

Luna Innovations is proud of our rich tradition of working in close collaboration with customers to develop the products that meet and exceed our clients’ needs for sensing, test & pagsukat, pagsubaybay, and control solutions. This heritage stems from a series of in-house technology innovations and acquisitions.

Fiber optic temperature sensors are immune to the many environmental effects that compromise other measurement technologies, can be embedded and installed in locations traditional temperature sensors cannot and deliver an unprecedented level of spatial detail and data without sacrificing precision and sensitivity.

4、Opsens Solutions

Ang mga fiber optic temperature sensor ng Opsens Solutions ay nagbibigay ng pangalawa sa walang pagganap sa iba't ibang industriya.

Kasama sa aming mga application ang pagsubaybay sa Nuclear Magnetic Resonance imaging (NMR) at Radio Frequency (RF) mga kapaligiran ng enerhiya.

Ang mga sensor na ito ay perpektong iniakma para sa mga application na may kaugnayan sa enerhiya na may mataas na boltahe at Electromagnetic disturbances (EMI). Maaari rin silang makaligtas sa radiated environment at immune sa microwave energy.

Ang mga sensor na ito ay maaaring gamitin sa malawak na hanay ng mga application: mula sa cryogenic na kapaligiran (tulad ng superconducting magnet), sa mga aplikasyon ng mataas na temperatura hanggang sa 350 Celsius.

5、Omega Engineering, Inc.

6、Yokogawa

Yokogawa Electric Corporation announces that it will release the DTSX^®3000 distributed temperature sensor on August 12. With a one meter spatial resolution, this distributed temperature sensor can measure the temperature along fiber-optic cables up to 50 km in length, eight times the distance possible with our previous model. In terms of measurement distance and temperature resolution, this is one of the industry’s top-performing distributed temperature sensors.

The DTSX3000 is well suited for plant and infrastructure maintenance applications that necessitate the monitoring of temperature over long distances or across wide areas. Specific applications include the detection of gas and liquid leaks in tanks and other large production facilities, and the detection of abnormal heat levels in power lines.

7、FISO Fiber Optic Temperature Sensors

FISO’s Fiber Optic Temperature Sensors provide accurate, matatag, at nauulit na mga sukat. Ang mga sukat na ito ay nakabatay sa mga pagkakaiba-iba ng sinasalamin na liwanag — kung ihahambing sa ibinubuga na ilaw — dahil sa thermal expansion ng mataas na matatag na salamin na ginagamit sa loob ng sensor. Ang fiber optic lead cable ay maaaring hanggang ilang metro ang haba nang hindi naaapektuhan ang kalidad o ang katumpakan ng mga resulta.

8、Althen Mga Sensor at Kontrol

Mga sensor ng temperatura ng fiber optic

Fiber optic temperature sensors use the properties of optical fibers to measure changes in temperature. These sensors offer several advantages over traditional electronic temperature sensors and are often used in environments with high temperatures, electromagnetic interference (EMI) or explosion hazards.

9、 Qualitrol

QUALITROL manufactures monitoring and protection devices for high value electrical assets and OEM manufacturing companies. Itinatag sa 1945, QUALITROL produces thousands of different types of products on demand, customized to meet unique requirements.
The Neoptix product line includes fiber optic temperature sensors for transformer windings temperature monitoring and for laboratory, pang-industriya, and medical applications.

10、Advanced na Enerhiya

Nag-aalok ang Advanced Energy ng lubos na maaasahan at tumpak na mga fiber optic sensor para sa pagsukat ng temperatura at mga sensing application. Ang Luxtron® patented FluorOptic® na teknolohiya ay nagbibigay-daan para sa tumpak na temperatura sensing sa malupit na kapaligiran kung saan ang mga kumbensyonal na sensor ay mabibigo, tulad ng sa paggawa ng semiconductor, kapangyarihan electronics, at mga industriya ng aerospace. Sa iba't ibang mga pagpipilian upang matugunan ang iba't ibang mga pangangailangan sa aplikasyon, ang mga fiber optic sensor na ito ay nagbibigay ng perpektong solusyon para sa pagsubaybay sa temperatura at pagtiyak ng kahusayan ng proseso at kalidad ng produkto. Bukod pa rito, Ang WaveCaptureTM Fiber Bragg Grating ng Advanced Energy (FBG) Ang mga solusyon sa sensing ay nag-aalok ng isang maaasahan at cost-effective na paraan upang masubaybayan ang strain at temperatura sa mga istruktura at materyales. Na may kakayahang sukatin ang strain na may mataas na katumpakan, ang mga FBG sensor na ito ay ginagamit sa iba't ibang mga application kabilang ang aerospace, civil engineering, at industriya ng langis at gas.

Ranking of the Best Fiber Optic Temperature Sensor Products

1、Fluorescent Fiber Optic Temperature Sensor Probes

Fluorescent fiber optic temperature probe has good electrical insulation, anti-electromagnetic interference, paglaban sa kaagnasan ng kemikal, no pollution and many other traditional temperature sensors can not be compared with the advantages.

2、Distributed temperature measurement optical fiber armored temperature sensing optical cable

Fiber optic temperatura sensing, Ang FOTS ay isang teknolohiya sa pagsukat ng temperatura batay sa mga signal ng paghahatid ng optical fiber, na gumagamit ng mga pisikal na katangian ng optical fibers upang makamit ang paghahatid at pagsukat ng mga signal ng temperatura. Ang temperature sensing fiber optic sensor ay binubuo ng fiber optic transmission module at isang temperature sensing head, na maaaring masukat ang temperatura sa anumang posisyon at sa anumang kapaligiran.

3、Fiber Bragg Grating Temperature Sensor

The IF-FBG fiber optic grating temperature sensor is a new type of temperature sensor developed specifically for temperature measurement of power switchgear, utilizing the inherent temperature sensing characteristics of fiber optic gratings. It is suitable for temperature monitoring and fire alarm at high-voltage power switchgear, mataas na boltahe cable joints, atbp. in power plants, mga substation, at iba pang lugar. It has many advantages such as high temperature measurement accuracy, mataas na boltahe na pagtutol, anti creep, paglaban sa kaagnasan, strong lightning resistance, at walang malakas na electromagnetic interference.

Sensor ng temperatura ng fiber optic, Intelligent na sistema ng pagsubaybay, Ibinahagi ang tagagawa ng fiber optic sa China