| 摘要 |
<p>A load-indicating device comprising a load-bearing member (10) adapted to deform when stressed. Ultrasonic waves are directed into one end (12) of the load-bearing member and ultrasonic echoes are received at the same end by ultrasonic wave transmitting and receiving equipment. In one embodiment, ultrasonic waves are transmitted and received using an ultrasonic transducer (18) disposed on either the head (12) or the opposite end (14) of the load-bearing member. The head, the end, the shank (13) or a combination thereof contoured to reduce the influence of geometric variations and asymmetrical stress in the load-bearing member on the ultrasonic measurement. A method is also provided, which encompasses a model, by which preferred geometries of the contoured surfaces of the load-bearing member can be designated. Also provided are a method of making a load-bearing member including contouring at least one end (12, 14) of a load-bearing member, or the shank (13) to reduce the influence of geometric variations and asymmetrical stress in the load-bearing member on ultrasonic measurement, and a method of identifying a contour on a load-bearing member that will provide accurate and reliable ultrasonic load measurements.</p> |
