Spm has introduced laser based measurement system, fixturlaser shaft 200. This is used for alignment of coupled machines, machine trains and offset mounted machines with cardan shafts. The system is intended for use by maintenance, quality and service departments. It is said to be the first system in the world that can handle the fundamental alignment problems like warped bases, straightness of shafts and thermal growth-all in one instrument. It includes a laser, a receiver and an application software. Two low power semiconductor laser diodes with collimating lenses are used to generate the laser, which is modulated to avoid interference form other light sources. The receiver is in the form of two single-axis position sensitive detectors [psd], which respond to the laser beam moving over the detector surface. They transform the laser beam into a charge and ensure quality by maintaining linearity. The microprocessor uses the software to process the signals from the detector and calculate the result that is then displayed graphically on the screen. The fixturlaser can measure up to a distance of 20 m and store 100 measurements. It also has a touch sensitive display and an icon based user interface that makes it extremely easy to use.
