SDN:L22::TOOL0804
1
SDN:L22::TOOL0804
false
1
Aanderaa pressure recorder
SDN:L22::TOOL0804
Aaanderaa PR
Aaanderaa PR
2014-11-12 10:38:36.0
An early (1970s) pressure recorder that used a Digiquartz type 2-300a quartz crystal pressure transducer. The pressure sensor consisted of a convoluted bellows linked to a 40kHz quartz crystal resonator coupled by piezoelectric action to an electronic resonator. Data were recorded onto 0.25 inch magnetic tape on an Aanderaa data logger in the same case. A quartz crystal clock was used for controlling the sampling interval. The data were recorded as 10 bit binary words in serial form with the frequency count from the sensor stored as the most and least significant counts.
accepted
2014-11-12 10:38:36.0