| 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. |
| Genre: | Article |
| ProdID: | 70011271 |
| Citation Author: | Westphal, J. A.; Carr, M. A.; Miller, W. F.; Dzurisin, D. |
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| Citation End Page: | 418 |
| Citation Issue: | 4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Review of Scientific Instruments |
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| Citation Number Of Pages: | 4 |
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| Citation Search Results Text: | Expendable bubble tiltmeter for geophysical monitoring; 1983; Article; Journal; Review of Scientific Instruments; Westphal, J. A.; Carr, M. A.; Miller, W. F.; Dzurisin, D. |
| Citation Start Page: | 415 |
| Citation Volume: | 54 |
| Citation Year: | 1983 |
| Type: | citation/reference |
| Text: | Expendable bubble tiltmeter for geophysical monitoring; 1983; Article; Journal; Review of Scientific Instruments; Westphal, J. A.; Carr, M. A.; Miller, W. F.; Dzurisin, D. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1063/1.1137408 |
| Date Other: | Sat, 1 Jan 1983 00:00 -0600 |
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