US Patent 7289033 Wireless sensing washers for imaging device attachment

A computed tomography assembly is provided comprising at least one clamped imaging component and a clamping fastener having a clamping head attached thereto. A load-sensing washer is positioned between the clamping head and the at least one clamped imaging component and includes a pressure sensor element in communication with a wireless transmitter transmitting a fastener load value. A wireless receiver is adapted to remotely receive the fastener load value and a processor in communication with the wireless receiver includes logic adapted to monitor the fastener load value in real time.