Patent ID: 11927491
Assignee: TAIYUAN UNIVERSITY OF TECHNOLOGY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 2:
3. The temperature demodulation method for the self-calibration temperature detection device oriented to the fiber Raman temperature sensing system of claim 2, characterized in that:
the pulsed laser has a wavelength of 1550 nanometers (nm), a pulse width of 10 nanoseconds (ns), and a repetition frequency of 8 kilohertz (kHz);
an operating wavelength of the WDM is 1550 nm/1450 nm/1663 nm;
the two APDs have a bandwidth of 100 megahertz (MHz) and a spectral response range of 900-1700 nm;
a bandwidth of the two LNAs is 100 MHz;
the data acquisition card has 4 channels, a sampling rate of 100 mega samples per second (MS/s), and a bandwidth of 100 MHz; and
the multi-mode sensing fiber is an ordinary multi-mode fiber.