Evaluation of results of the SmartLIM (Laser Inferometric Magnetometer) as a traffic counter
A fiber optical magnetometer, SmartLIM (Laser Interferometric Magnetometer), has been developed. The SmartLIM adopts the Mach-Zehnder interferometer to detect the local disturbance of the geomagnetic field produced by a car driven nearby. Its high sensitivity enables us to install the detector at the a depth of 0.5m from under the road surface, or beneath the bottom side underside of an elevated road. . The SmartLIM was tested for over four seasons at under an elevated road after following our factory site test. The results have confirmed its excellent detection capability and usefulness as a traffic counter.
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Authors:
- IKEDA, Y
- SATORI, K
- SUNAHARA, S
- IKEGAMI, H
- KOHGA, K
- Publication Date: 2008
Language
- English
Media Info
- Pagination: 39-46
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Serial:
- INTERNATIONAL JOURNAL OF ITS RESEARCH
- Volume: 2
- Issue Number: 1
Subject/Index Terms
- TRT Terms: Magnetic properties; Sensors; Surveillance; Tests; Traffic counts
- ITRD Terms: 6936: Magnetism; 6120: Sensor; 9101: Surveillance; 6255: Test; 689: Traffic count
- Subject Areas: Operations and Traffic Management; I70: Traffic and Transport;
Filing Info
- Accession Number: 01109494
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- Files: ITRD
- Created Date: Aug 25 2008 8:30AM