Algorithm for a novel fiber-optic weigh-in-motion sensor system
Over the past decade, the demand from both government and private industry for small, lightweight, vehicle weigh-in-motion (WIM) systems has grown substantially. During the 1980s several techniques for weighing vehicles in motion were developed that include piezoelectric cables, capacitive mats, and hydraulic and bending-plate load cells. These different systems have advantages and disadvantages that trade off between accuracy, physical size and system complexity. The smaller portable systems demonstrate medium to poor accuracy and repeatability while the larger more accurate systems are nonportable. A small, lightweight, and portable WIM system based on a fiber-optic pressure transducer has been developed by Oak Ridge National Laboratory (ORNL) to meet the demands of government and industry. The algorithm for extracting vehicle weight from the time-dependent sensor response is developed and presented in this report, along with data collected by the system for several classes of vehicles. These results show that the ORNL fiber-optic WIM system is a viable alternative to other commercial systems that are presently available. 5 refs., 5 figs.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10103008
- Report Number(s):
- CONF-9109230-8; ON: DE92003538; IN: SPIE 1589-12
- Resource Relation:
- Conference: OE/Fibers `91: Society of Photovoltaic Instrumentation Engineers (SPIE) meeting,Boston, MA (United States),3-6 Sep 1991; Other Information: PBD: Aug 1991
- Country of Publication:
- United States
- Language:
- English
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