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Calibration and use of pressure transducers in soil hydrology

✍ Scribed by J. F. Dowd; A. G. Williams

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
425 KB
Volume
3
Category
Article
ISSN
0885-6087

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✦ Synopsis

Laboratory and field experiments demonstrated that solid state pressure transducers are accurate and reliable devices for frequent measurements of soil suction. However, each transducer had to be individually calibrated before use and a hanging column procedure designed for this purpose is described. Analysis showed that each transducer had a linear response and that environmental conditions such as temperature had minimal influence. Twenty four tensiometers with pressure transducers were intalled in a forest soil to test their operation and their output was monitored by a data logger. An example of soil suction results measured during four storms is given to demonstrate their stability and their rapid response. The transducers were found to perform accurately and were only affected by temperatures below 0Β°C.

πŸ“œ SIMILAR VOLUMES

The calibration and use of pressure tran
The calibration and use of pressure transducers in tensiometer systems
✍ James R. Hoelscher; William K. Nuttle; Judson W. Harvey πŸ“‚ Article πŸ“… 1993 πŸ› John Wiley and Sons 🌐 English βš– 477 KB

## Abstract The uncertainty in a transducer/tensiometer system was assessed with temperature and pressure calibrations. A reference transducer/tensiometer pair was used to factor out temperature related deviations from two monitoring pairs. The reference pair removed most of the deviations, resulti