초록 ▼

Equipment for non-contact measurement of the deflection of a road (2) comprises a self-propelled vehicle with a load (7) which influences at least one wheel (4), the speed of which is measured in the direction of travel. The equipment further comprises a laser device (8) from which at least one elec

Equipment for non-contact measurement of the deflection of a road (2) comprises a self-propelled vehicle with a load (7) which influences at least one wheel (4), the speed of which is measured in the direction of travel. The equipment further comprises a laser device (8) from which at least one electromagnetic beam (9) is directed towards the rodway in the vicinity of the vehicle, and the Doppler frequency change in the reflection (9) is detected. An electronic circuit (10) continuously registers the results of the measurements and herewith the deflection at normal traveling speed.

대표청구항 ▼

[ What is claimed is:] [1.] Method for non-contact measurement of the deflection of a road or rail while loaded by a travelling vehicle with weight-loaded drive-wheels, the speed of which in the direction of travel is measured, characterized in that the speed of the deflection is measured continuous

[ What is claimed is:] [1.] Method for non-contact measurement of the deflection of a road or rail while loaded by a travelling vehicle with weight-loaded drive-wheels, the speed of which in the direction of travel is measured, characterized in that the speed of the deflection is measured continuously while the vehicle is travelling by the measurement of the vertical speed of the road or rail using sensors which detect the Doppler frequency change in the reflections from at least one transmitted beam directed towards the roadway or the train rail, the beam obtained using one selected from the group consisting of a laser technique, radar technique, and an ultrasonic technique, after which the deflection can be calculated.