Calibration tool for laser particle counters
US6639670B2 · kind B2 · utility
6Cited by
4References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Apr 2, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/0205
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A calibration system for a particle counter comprising a chamber, an air inlet pathway and a supply source of a liquid carrier. The air inlet pathway provides a gaseous substance into the chamber, and the liquid carrier passes through an array of thermal inkjet heads with a plurality of orifices to form a plurality of liquid particles before the liquid particles are entrained by a flow of the gaseous substance. A controller regulates the size, amount, and rate of liquid particles that exit the array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.