Method and system for calibrating an optical density measurement apparatus
US5416575A · kind A · utility
8Cited by
15References
14Claims
0Family size
Inventors
Key dates
| Filing date | Nov 3, 1992 |
| Grant date | May 16, 1995 |
| Priority date | — |
| Expiry date | Nov 3, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/278
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system for calibrating an optical density measurement apparatus includes a graphic display module that can be modulated under control of a microcomputer. The module is preferably a matrix-array type liquid crystal display wherein individual pixels may be selectively turned on or off to achieve a desired time course of transmittance changes in order to emulate the clot signature of a standard solution. Preferably the graphic LCD module includes a portion which provides a user interface during a calibration run.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.