Instantaneous angular speed (IAS) has been more and more popular to be investigated in condition monitoring of machinery, such as diesel engines, pumps, electrical motors, and compressors.
A laser optical mouse, which is usually used as a computer peripheral device, has been investigated to be a monitoring device employed in non-contact measurement of IAS. Compared with the conventional contact measurements of IAS, non-contact measurement of IAS using a laser mouse is low cost, wireless transmission, real-time analysis, easy installation, easy operation and easy extension.
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