The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2002
Filed:
Sep. 25, 2000
Gerhard Raffer, Graz, AT;
Anton Paar GmbH, Graz, AT;
Abstract
A rotational rheometer has an integrating motor ( ), which rotates a measuring shaft ( ) supporting a first measuring element ( ), there being formed between this first measuring element ( ) and a further, fixed measuring element ( ) a measurement gap (S), into which is introduced the substance to be tested ( ), in particular fluid, the depth of the measurement gap (S) being variable by the adjustment of the two measuring elements ( ) relative to each other, and a device being provided to determine the distance between the two measuring elements. At least one inductive or at least one magnetic position sensor ( ) is supported by one of the two measuring elements ( ). The first measuring element ( ) or a device ( ) disposed on this measuring element ( ) can cause the position sensor ( ) disposed on the other measuring element ( ) to respond, or can cause the output signal, e.g. impedance, resistance,or voltage, of this position sensor ( ) to be modified, and the output signals of the position sensor ( ) are supplied to an analyzing unit ( ).