Optical Fiber Sensors MCQs with Answers

Which property of light is commonly utilized in optical fiber sensors?

Which type of optical fiber sensor is commonly used in structural health monitoring?

Which type of optical fiber sensor uses the change in light intensity to detect a physical quantity?

What is the term for the change in the resonant wavelength of a Fiber Bragg Grating (FBG) due to strain or temperature?

What is the term for the region outside the core of an optical fiber where the electric field decreases exponentially?

What is the primary advantage of Fiber Bragg Grating (FBG) sensors?

What is the term for the process of retrieving the measured physical quantity from the optical signal in an optical fiber sensor?

Which type of optical fiber sensor measures changes in the spectral characteristics of backscattered light?

Which type of optical fiber sensor is based on the interference of light waves?

What is the function of the transducer in an optical fiber sensor?

Which type of optical fiber sensor is based on changes in the interference pattern caused by external influences?

Which type of optical fiber sensor is commonly used in biomedical applications such as glucose monitoring?

Which type of optical fiber sensor is suitable for distributed temperature sensing along the length of the fiber?

Which type of optical fiber sensor is suitable for distributed sensing along the length of the fiber?

What is the primary sensing mechanism in a Mach-Zehnder Interferometer?

What is the function of a photo-detector in an optical fiber sensor system?

What type of phenomena can optical fiber sensors detect?

What is the primary advantage of Fabry-Perot Interferometer sensors?

Which type of optical fiber sensor is based on changes in the polarization state of light?

Which type of optical fiber sensor is commonly used for distributed temperature sensing in harsh environments?

Which type of optical fiber sensor measures changes in temperature?

What is the function of an optical coupler in an optical fiber sensor system?

Which type of optical fiber sensor measures changes in the polarization state of light?

What is the function of a light source in an optical fiber sensor system?

Which type of optical fiber sensor measures changes in refractive index near the fiber core?

What is the primary sensing element in an optical fiber sensor?

What is the term for the phenomenon where light travels through the core of an optical fiber and interacts with its surroundings?

Which type of optical fiber sensor measures changes in strain?

Which type of optical fiber sensor is commonly used for distributed strain sensing in civil engineering structures?

Which type of optical fiber sensor measures changes in the intensity of light due to external influences?

What is the function of the modulator in an optical fiber sensor system?

What is the function of a demodulator in an optical fiber sensor system?

What is the term for the process of converting the measured physical quantity into an optical signal in an optical fiber sensor?

Which type of optical fiber sensor uses the interference of light waves to measure temperature?

Which type of optical fiber sensor measures changes in pressure?

What is the primary sensing mechanism in a Fiber Bragg Grating (FBG) sensor?

What is the primary advantage of optical fiber sensors over traditional sensors?

What is the term for the change in the refractive index of an optical fiber due to external influences?

Which physical quantity can be measured using a Fiber Bragg Grating (FBG) sensor?

What is the primary advantage of optical fiber sensors in hazardous environments?