An automated locating and data logging system for geophysical surveys
Oak Ridge National Laboratory has developed an Ultrasonic Ranging and Data System (USRADS) and interfaced the system with a Geonics EM31 terrain conductivity meter. USRADS keeps track of a surveyor's position by measuring the time-of-flight of ultrasonic pulses from an transducer carried by the surveyor in a backpack to stationary receivers arrayed over the survey area. We surveyed a 13-acre landfill at Idaho National Engineering Laboratory with three people, in three days, collecting over 25,000 EM31 quadrature and imphase readings. USRADS offers several advantages over conventional EM31 surveys: (1) time and money are saved because it does not require a civil survey to lay a grid before the geophysical survey begins, (2) data are directly recorded by a portable computer and are available for analysis in the field, and (3) refining or expanding the grid about an anomaly does not require civil surveying to add extra grid points. USRADS can also be used with a gamma scintillometer for radiation surveys. Currently, we are working to interface USRADS with a portable x-ray fluorescence spectrometer for detecting heavy metals in soil. 5 refs., 8 figs.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- Sponsoring Organization:
- EPA
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 7154201
- Report Number(s):
- CONF-9005149-1; ON: DE90008889
- Country of Publication:
- United States
- Language:
- English
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47 OTHER INSTRUMENTATION
54 ENVIRONMENTAL SCIENCES
540230 -- Environment
Terrestrial-- Radioactive Materials Monitoring & Transport-- (1990-)
ACTINIDES
AUTOMATION
COMPUTERS
COORDINATES
DATA TRANSMISSION SYSTEMS
DESIGN
ELECTRONIC EQUIPMENT
ELEMENTS
EQUIPMENT
GEOPHYSICAL SURVEYS
MEASURING INSTRUMENTS
METALS
MILL TAILINGS
PERSONNEL
PORTABLE EQUIPMENT
RADIO EQUIPMENT
SOILS
SOLID WASTES
SOUND WAVES
SPECTROMETERS
SURVEYS
TAILINGS
TRANSDUCERS
ULTRASONIC WAVES
URANIUM
WASTES