Method and device for signal collection

Abstract

Methods for performing signal collection on fluorescence emitted by an object to be subjected to detection in a sample comprise: performing photoelectric detection on fluorescence emitted by the object to generate an electrical signal; integrating the electrical signal; collecting the integrated electrical signal; and in response to a trigger indication, releasing, within a time period, more than 90% of charges accumulated in a charge integrator that integrates the electrical signal, wherein the time period is less than 15% of a full width at half maximum of a time-domain waveform corresponding to fluorescence intensity. By releasing most of the accumulated charges in a timely manner within a short time during the process of integrating an electrical signal generated during fluorescence detection, the problem of the dynamic range of a fluorescence detector being insufficient is effectively solved, such that the dynamic range can be expanded.

Dependencies are inferred from the claim text.