Liquid detection device and method

• Main Authors: CHEN HONGQIANG, MENG GUANXIONG
• Format: Patent
• Language: Chinese; English
• Published: 30.10.2020
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention provides a liquid detection device and method. The liquid detection device comprises: a pulse light source configured to emit pulse light; a time domain dispersion device configured to convert the pulse light emitted by the pulse light source from a frequency domain to a time domain to form pulse light after time domain broadening; a first spatial dispersion device configured to change the propagation direction of the light with different frequencies in the pulse light after time domain broadening in space; a first objective lens configured to converge the pulse light of which the propagation direction is changed by the first spatial dispersion device to a micro-flow device; the micro-flow device configured to enable a to-be-detected liquid in the micro-flow device to flow ata preset speed; a second objective lens configured to collect the light which is converged by the first objective lens and passes through the micro-flow device; a second spatial dispersion device forspatially recombining the