System for detecting wheel-damage
First Claim
1. A system for detecting irregularities in the geometric shape of a railway wheel having a give circumference running on a rail having a head comprising a linearly expanding accelerometer (1) solidly joined to said rail and having a length equal to or longer than said circumference below said head of said rail (5) and in its longitudinal direction.
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Accused Products
Abstract
The invention concerns a system to detect irregularities in the geometry of railway wheels. The system is characterized in that a linearly expanding accelerometer is solidly joined to the rail underneath its head. The accelerometer sensitivity is constant over its entire length and generates a voltage proportional to the acceleration of the rail. For different damages, the rail acceleration takes place in different directions, whereby the voltage amplitude, depending on the type of damage, evinces opposite polarities. Frequency filtering or frequency analysis permit the determination of further criteria which, together with other weighted criteria, are used to characterize wheel damage.
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Citations
8 Claims
- 1. A system for detecting irregularities in the geometric shape of a railway wheel having a give circumference running on a rail having a head comprising a linearly expanding accelerometer (1) solidly joined to said rail and having a length equal to or longer than said circumference below said head of said rail (5) and in its longitudinal direction.
Specification