Patent ID: 11949208
Assignee: OCEAN UNIVERSITY OF CHINA
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A degassing-free underwater dissolved carbon dioxide detection device, comprising:
a power tuning unit;
a laser device;
a laser device driving control module connected with the laser device;
a photo-isolator connected with the laser device;
a thulium-doped fiber vertical-cavity laser device light source system;
a photoacoustic cell system;
a pre-amplifier circuit;
a phase-locked amplifier; and
a computer constructed and arranged to provide a power tuning driving signal for the power tuning unit and to control the power tuning unit to tune a parameter, the computer being connected with the laser device driving control module and the power tuning unit, respectively,
wherein the photo-isolator is connected with the thulium-doped fiber vertical-cavity laser device light source system; the thulium-doped fiber vertical-cavity laser device light source system is connected with the photoacoustic cell system through a fiber collimator, and
wherein the photoacoustic cell system is connected with the pre-amplifier circuit and the phase-locked amplifier in sequence, and the phase-locked amplifier is connected with the computer.