Patent ID: 11971486
Assignee: NANJING UNIVERSITY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 4:
5. The three-dimensional imaging method based on the superconducting nanowire photon detection array according to claim 2, wherein the amplifying circuit adopts a first stage amplifying circuit, a second stage amplifying circuit, a compensating circuit and a biasing circuit; the first-stage amplification circuit adopts differential input, and the second-stage amplification circuit adopts a common-source amplifier; the compensating circuit consists of an MOS (Metal-Oxide-Semiconductor) transistor and a capacitor, wherein the MOS transistor works in a linear region and provides a constant bias current; and resistance is added into the biasing circuit by a source of the MOS transistor, and each pixel shares a constant current source to generate a stable current.