A digital to analog conversion circuit for use with automated meteorological stations

✍ Scribed by S.D. English; F.C. Ludbey; R.C.G. Smith

• Publisher: Elsevier Science
• Year: 1980
• Weight: 230 KB
• Volume: 22
• Category: Article
• ISSN: 0002-1571
• DOI: 10.1016/0002-1571(80)90014-x

✦ Synopsis

A circuit which converts the digital output from tipping bucket raingauges, contact closure anemometers and integrators of analog signals to an analog signal suitable for input to a data logging system located in a controlled environment room is described. The device uses binary coded decimal counters to count the pulses which are continuously converted to analog signal using a Zeltex ZD433 device. The data logger reads the analog voltage and resets the counters to zero at the end of each scan cycle.