A nondestructive detection system based on X-ray for wire ropes conveyer belt is designed by X-ray detection
technology. In this paper X-ray detection principle is analyzed, a design scheme of the system is presented; image
processing of conveyer belt is researched and image processing algorithms are given; X-ray acquisition receiving board
is designed with the use of FPGA and DSP; the software of the system is programmed by C#.NET on WINXP/WIN2000
platform. The experiment indicates the system can implement remote real-time detection of wire ropes conveyer belt
images, find faults and give an alarm in time. The system is direct perceived, strong real-time and high accurate. It can be
used for fault detection of wire ropes conveyer belts in mines, ports, terminals and other fields.
A novel design of micromachining-based high speed 1x2 optical switch array is presented. Employing a triangle-shaped micromachined mirror for beam directing, the design achieved a high level integration of multiple switches on a single substrate, significantly shortened switch time to below 1 ms. An array of four 1x2 switches was fabricated and the performance of the switch array prototype was reported, attaining a fast switch time of less than 750us, extremely low cross-talk <-70dB, an insertion loss of between 0.6 and 0.8 dB, and with an overall size of only 60×36×7 mm3. The experimental result was compared with that from a finite element analysis and a good agreement was obtained.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.