Patent · US Active

Dark reference standard and measurement thereof

US10345228B2 · kind B2 · utility

0Cited by

7References

19Claims

0Family size

Assignee

PROCESS SENSORS CORPORATION · US

Inventors

Jerome J. Workman, Jr. · Appleton, US
John Glaberson · Sandy Hook, US

Key dates

Filing date	Mar 2, 2017
Grant date	Jul 9, 2019
Priority date	—
Expiry date	Apr 12, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01N21/274
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Various embodiments of a dark reference standard for an instrument are described. In one embodiment, the dark reference standard includes a sample cup and an arrangement of dark reference standard materials. The arrangement of dark reference standard materials can be embodied as a dark glass, such as a welding glass, and a polymer film such as a carbon black or carbon black master polymer film.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.