Page 135 - 诺霸英文2022

ULTRASONIC MEASUREMENT

ULTRASONIC MEASUREMENT

USM-3 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 135
As design engineers push the boundaries to provide
greater strength and efficiency in bolted joints, the
use of torque, torque and angle, or even tensioning as
the method of tension control may not be adequate,
leading to costly failures. In those applications, ultrasonic
bolt elongation/load measurement is able to provide
accuracy equal to strain gauging without the need to
strain gauge a bolt. In addition, the use of ultrasonic
bolt measurement allows the user to return at any time
and re-verify the level of tension in each fastener over
its service life� The USM-3 has been both laboratory and
field-proven to be the most accurate, reliable and cost
effective solution for eliminating bolting failures. These
could place workers at risk, lead to the loss of production
and/or cause damage to capital equipment.

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