Coefficient-of-friction measuring device, in particular for the

Details Coefficient-of-friction measuring device, in particular for the Coefficient-of-friction measuring device, in particular for the

1991-05-14

1994-05-31

Noland, Tom

Measuring and testing

Frictional resistance, coefficient or characteristics

G01N 1902

Patent

active

053158601

ABSTRACT:
A simple-design device for the measurement of coefficients of friction depending on the relative speed between a sample (8) and a brake disc (13) features a simple-design set-up and is well suited for the measurement of the changes of the coefficient of friction in the starting and in the stopping phases of the friction surface (13). The device operates by pressing the sample (8) with a defined pressing force (K1, K2) onto the friction surface (13) and simultaneously measures that force (K3) with which the samples (8) are dragged by the friction surface (13) transversely to the pressing force (K1, K2) as a function of time and speed. A brake disc can be provided as a friction surface (13). A single source of forces (K1, K2) for the pressing force can also be provided, resulting in a simple-design and sturdy structure for the device.

REFERENCES:
patent: 1490603 (1924-04-01), Elverson
patent: 2004950 (1935-06-01), Jenkins
patent: 3059464 (1962-10-01), Deane
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patent: 4050290 (1977-09-01), Lonnroth
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patent: 5115664 (1992-05-01), Hegde et al.
patent: 5212657 (1993-05-01), Uchikawa et al.

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