Patent ID: 11867666
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A measuring device for detecting measuring signals during a movement of an indenter on a surface of a specimen, the measuring signals used to determine: a surface profile, a hardness, and, a scratch resistance of the specimen, the measuring device comprising:
a) a housing, and,
b) a control device including a computer processor, computer memory, a user interface, and, input/output ports, and,
c) a measuring table receptacle that clamps the specimen and whose position relative to the housing is controlled by the control device, and,
d) a force-generation means which is connected with an indenter for generating a displacing movement of the indenter along a travel axis of the indenter, the travel axis perpendicular to a surface of the specimen, and, the force-generation means is controlled by the control device and drives a penetrating movement of the indenter into the surface of the specimen, or, which positions the indenter on the surface of the specimen for scanning, and,
e) the force generation means comprises a drive device and a magnetic transmission device, and,
f) the magnetic transmission device comprises a first magnetic pole and a second magnetic pole, which are arranged at a distance to one another and which are oriented with the same poles to one other, and,
g) the first magnetic pole is connected with the drive device that drives a displacing movement of the first magnetic pole along the travel axis or parallel thereto, or along an axis perpendicular to the travel, and,
h) the second magnetic pole of the transmission device is connected to a first end of a transmission element, the second end of the transmission element, located opposite the first end, is connected to the indenter, and, wherein the transmission element is displaceably guided inside the housing along the travel axis, upon the displacing movement of the first magnetic pole by the drive device, and,
i) thereby the movement of the drive device is transmitted on to the indenter by means of a magnetic force of the magnetic transmission device and the control device is programmed to determine a force of the indenter acting on the surface of the specimen, and,
j) a first measuring means, configured as a distance sensor, for measuring a penetration depth of the indenter into the surface of the specimen or for measuring a displacing movement of the indenter along the travel axis during a scanning movement of the indenter across the surface of the specimen,
k) a second measuring means is configured as a distance sensor and, during a scanning movement of the indenter, a deflection movement of the indenter perpendicular to the displacement movement of the indenter is detected by the distance sensor, and,
l) a third measuring means that measures a rotational movement of the drive device and thereby measures displacement of the first magnetic pole by the drive device, and,
m) electrical signals from the first, second and third measuring means are received by the control device, and, the control device is further programmed to determine at least one of: a surface profile, a hardness, and, a scratch resistance of the specimen based upon the electrical signals.