Patent ID: 7487683
Filing Date: 2009-02-10
Classification: G01N

Abstract:
1. An endurance testing apparatus for performing endurance testing of a contacting/separating portion in which a first member and a second member repeatedly contact with and separate from each other, the endurance testing apparatus comprising: a contact load generator that, during endurance testing, repeatedly generates a contact load acting between the first member and the second member by repeatedly causing the first member and the second member to separate and then contact with each other at a contacting/separation portion by reciprocating the second member in an axial direction with respect to the first member during an endurance testing period; and a testing medium fluid supply means that supplies a testing medium fluid to the contacting/separating portion to expose the first member and the second member to the testing medium fluid; a contact load adjuster that adjusts the contact load; a load sensor that directly detects the contact load acting between the first member and the second member; and a control unit that uses feedback from the load sensor to control the contact load adjuster to continuously adjust the contact load detected by the load sensor to a predetermined target load or within a predetermined proper load range.