Photoconductor readout device and method of using same for determining responsivity and detectivity

US11988552B2 · kind B2 · utility

Assignee

• TRINAMIX GMBH · DE

Inventors

• Bertram Feuerstein · Ludwigshafen am Rhein, DE
• Sebastian Valouch · Lampertheim, DE
• Robert Gust · Ludwigshafen, DE
• Stefan Klueh · Ludwigshafen, DE
• Robert Send · Karlsruhe, DE
• Darren Richard Gould · Ludwigshafen, DE

Key dates

• Filing date: Oct 8, 2020
• Grant date: May 21, 2024
• Expiry date: Oct 8, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01J2001/4446
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device includes at least one array of photoconductors, at least one bias voltage source, and at least one photoconductor readout circuit. Each photoconductor is configured for exhibiting an electrical resistance dependent on an illumination of its light-sensitive region, and at least one photoconductor of the array is designed as characterizing photoconductor. The bias voltage source is configured for applying at least one alternating bias voltage to the characterizing photoconductor or at least one direct current (DC) bias voltage to the characterizing photoconductor. The photoconductor readout circuit is configured for determining of a response voltage of the characterizing photoconductor generated in response to the bias voltage. The response voltage is proportional to a variable characterizing the array of photoconductors. The photoconductor readout circuit configured for determining of the response voltage of the characterizing photoconductor during operation of the array of photoconductors.