Expendable bubble tiltmeter for geophysical monitoring
Review of Scientific Instruments
By: J.A. Westphal, M.A. Carr, W.F. Miller, and D. Dzurisin
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Abstract
An unusually rugged highly sensitive and inexpensive bubble tiltmeter has been designed, tested, and built in quantity. These tiltmeters are presently used on two volcanoes and an Alaskan glacier, where they continuously monitor surface tilts of geological interest. This paper discusses the mechanical, thermal, and electric details of the meter, and illustrates its performance characteristics in both large (>10-4 radian) and small (<10-6 radian) tilt environments. The meter's ultimate sensitivity is better than 2??10-8 radians rms for short periods (hours), and its useful dynamic range is greater than 10 4. Included is a short description of field use of the instrument for volcano monitoring.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Expendable bubble tiltmeter for geophysical monitoring |
| Series title | Review of Scientific Instruments |
| DOI | 10.1063/1.1137408 |
| Volume | 54 |
| Issue | 4 |
| Year Published | 1983 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Review of Scientific Instruments |
| First page | 415 |
| Last page | 418 |
| Google Analytic Metrics | Metrics page |