Fluid analyzer with self-check, leak detection, and adjustable gain

US12313529B2 · kind B2 · utility

Assignee

• Daylight Solutions, Inc. · US

Inventors

• H. T. Stinson · San Diego, US
• Rudy Bermudez · San Diego, US
• Mark Bermal · San Diego, US
• Jeremy Rowlette · Escondido, US
• David F. Arnone · Mountain View, US
• Edeline Fotheringham · San Diego, US
• Ronald Arp · Greeley, US

Key dates

• Filing date: Jan 28, 2021
• Grant date: May 27, 2025
• Expiry date: Feb 6, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2030/027
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A fluid analyzer (214) that analyzes a sample (12) includes an analyzer frame (236); a test cell assembly (242) that receives the sample (12); a laser assembly (238) that generates a laser beam (239A) a signal detector assembly (232) and a self-check assembly (230). The self-check assembly (230) includes (i) a check frame (230A); (ii) a check substance (230E) with known spectral characteristics; and (iii) a check frame mover (230B) that selectively moves the check frame (230A) between a self-check position (231 B) and a test position (231 A) relative to the analyzer frame (236). In the self-check position (231 B), the laser beam (239A) is directed through the check substance (230E) to evaluate the performance of the fluid analyzer (214). In the test position (231 A), the laser beam (239A) is directed through the sample (12) in the test cell assembly (242) to evaluate the sample (12).