Patent ID: 11879827
Assignee: BECTON, DICKINSON AND COMPANY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 12:
13. A method comprising:
irradiating through an input polarizer an electro-optical modulator with a laser to generate a polarized frequency-modulated beam of laser light;
irradiating a particle in a flow stream in a particle analyzer with the polarized frequency-modulated beam of laser light modulated at a reference frequency;
generating a reference frequency signal comprising a reference waveform
detecting scattered light from the particle conveyed through an output polarizer with a photodetector;
generating a frequency-encoded data signal from the detected polarized scattered light from the photodetector;
synchronizing the frequency-encoded data signal with the reference frequency to produce a synchronized frequency-encoded data signal by multiplying the frequency-encoded data signal with the reference waveform.