FBG Humidity Sensor

The FBG humidity sensor is a fiber Bragg grating sensing product launched by Fibersensing. It is unpowered, resistant to electromagnetic interference, corrosion-resistant, and small in size, making it suitable for use in occasions where traditional electrical sensors are difficult to work stably. The sensor can integrate a fiber optic temperature sensor to achieve simultaneous monitoring of humidity and temperature. The measurement range covers humidity 20%–90%RH and temperature 0–80°C, with humidity accuracy of ±5%RH and temperature accuracy of ±0.5°C. The product uses ordinary single-mode fiber and FC/APC connectors, with a center wavelength between 1510–1590 nm, supports quasi-distributed networking, and is easy to multiplex in multi-point monitoring projects. If you are looking for a humidity monitoring solution for industrial, aerospace, medical, or strong electromagnetic field and nuclear radiation environments, welcome to contact us, and we will assist in confirming the configuration and quotation according to your specific scenario.

• Unpowered, resistant to electromagnetic interference, suitable for environments such as strong electromagnetic fields and nuclear radiation
• Can integrate a fiber optic temperature sensor to simultaneously monitor humidity and temperature
• Humidity measurement range 20%–90%RH, temperature range 0–80°C
• Humidity accuracy ±5%RH, temperature accuracy ±0.5°C, fast response
• Supports quasi-distributed networking, easy to multiplex and expand
• Uses ordinary single-mode fiber and FC/APC connectors, center wavelength 1510–1590 nm

Applications

• Humidity-sensitive process stages or storage area monitoring in industrial environments
• Synchronous monitoring of humidity and temperature inside sealed cabins such as spacecraft and satellites
• Humidity monitoring requiring electromagnetic interference resistance in medical equipment or medical environments
• Humidity monitoring in strong electromagnetic field environments (e.g., near power facilities)
• Humidity monitoring in special environments such as nuclear radiation

FAQ

What environments are FBG humidity sensors suitable for?

They are suitable for humidity monitoring in scenarios such as industrial, aerospace, and medical applications, and are especially suitable for environments with strong electromagnetic fields and nuclear radiation where traditional electrical sensors are difficult to operate stably. The sensor is unpowered, resistant to electromagnetic interference, and corrosion-resistant, and can be used under these conditions.

Can this sensor also measure temperature?

Yes. FBG humidity sensors can integrate fiber optic temperature sensors to achieve simultaneous monitoring of humidity and temperature. The temperature measurement range is 0～80℃, with an accuracy of ±0.5℃.

What are the humidity measurement range and accuracy?

The humidity measurement range is 20%–90%RH, and the measurement accuracy is ±5%RH. The humidity sensitivity is approximately 5 pm/%RH.

How can I obtain quotation and delivery information?

Please provide your specific number of measurement points, environmental conditions, and installation method, and contact us to confirm the configuration and quotation. Please also contact us to confirm the minimum order quantity, packaging method, and delivery lead time.

Do the sensors support networking?

They support quasi-distributed networking, and multiple measurement points can be multiplexed on a single optical fiber, making them suitable for projects that require multi-point humidity monitoring. Please contact us to confirm the specific networking solution.