NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Use of Ultrasonic Technology for Soil Moisture MeasurementIn an effort to improve existing soil moisture measurement techniques or find new techniques using physics principles, a new technique is presented in this paper using ultrasonic techniques. It has been found that ultrasonic velocity changes as the moisture content changes. Preliminary values of velocities are 676.1 m/s in dry soil and 356.8 m/s in 100% moist soils. Intermediate values can be calibrated to give exact values for the moisture content in an unknown sample.
Document ID
20010000505
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Choi, J. (Alabama Agricultural and Mechanical Coll. Normal, AL United States)
Metzl, R. (Alabama Agricultural and Mechanical Coll. Normal, AL United States)
Aggarwal, M. D. (Alabama Agricultural and Mechanical Coll. Normal, AL United States)
Belisle, W. (Alabama Agricultural and Mechanical Coll. Normal, AL United States)
Coleman, T. (Alabama Agricultural and Mechanical Coll. Normal, AL United States)
Date Acquired
August 20, 2013
Publication Date
February 1, 1997
Publication Information
Publication: NASA University Research Centers Technical Advances in Education, Aeronautics, Space, Autonomy, Earth and Environment
Volume: 1
Subject Category
Geophysics
Report/Patent Number
URC97147
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

IDRelationTitle20010000359Collected WorksNASA University Research Centers Technical Advances in Education, Aeronautics, Space, Autonomy, Earth and Environment
No Preview Available