A micropower electronic integrator for meteorological applications

✍ Scribed by Gaylon S. Campbell

• Publisher: Elsevier Science
• Year: 1974
• Weight: 244 KB
• Volume: 13
• Category: Article
• ISSN: 0002-1571
• DOI: 10.1016/0002-1571(74)90080-6

✦ Synopsis

A simple battery operated counting integrator was developed for field integration of millivolt analog signals. The circuit uses a micropower operational amplifier and C/MOS digital circuitry to minimize current drain. Two small mercury batteries operate the circuit for an entire growing season. An error analysis indicates that errors are smaller than 1% of full scale (5 mV) for signals between 0.5 and 5 mV over a temperature range of 0°--50°C.