Signal processing apparatus
US4524420A · kind A · utility
9Cited by
14References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1982 |
| Grant date | Jun 18, 1985 |
| Priority date | — |
| Expiry date | Aug 25, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/8651
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for processing the output signal of a gas chromatograph. An interface device receives the analog output signal and digitizes it, reducing the effects of noise and preparing the signal for processing by a digital microprocessor. The microprocessor detects and measures peaks in the signal and determines the desired identification (in order of ascending molecular weight) and concentration (peak amplitude) data. A logarithmic output signal is produced for displaying output signals with wide dynamic ranges on a strip chart recorder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.