The VMU series of video calipers from MicroImage Video Systems utilize extensive digital processing to maintain high accuracy and repeatability. Usable with most video cameras, MicroImage Video Systems provides fast, efficient and affordable non-contact measurement. New models are compatible with NTSC/PAL/RS170 and CCIR video standards.

The MicroImage VMU series of video measurement units are designed to be highly flexible and powerful, yet easy to use. Unlike analog based units, all  mathematics are done digitally, allowing the VMU series to maintain consistent precision regardless of the scale factor. All lines are digitally rendered for solid, repeatable performance over time with virtually zero drift. High precision optical encoders are used for the position controls, eliminating jitter which can plague analog based measurement devices.

VMU300 units produced after June 20, 2004 will support both NTSC and PAL (as well as RS170 and CCIR) video standards The units will auto detect the signal and adjust accordingly. B&W or S-Video signals are recommended over composite video for the highest performance. The units will also work with composite signals.

NTSC/RS170 models have an impressive  1280 x 480 maximum measurement resolution while the PAL/CCIR units have 1536 x 576 maximum measurement resolution.

Using the VMU series is easy. A size reference is placed in the field of view and the cursors are moved to the reference dimensions. The calibration value is entered on the keypad and can be set to the X or Y axis. This provides far more range and precision than using a rotary control to set calibration. From this point on, the unit is calibrated, provided the distance to the object or magnification (zoom) doesn't change. Ten memories are provided to store multiple calibrations for different optics/magnifiers saving significant time. The units remember all settings in non- volatile memory when turned off.

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Video vs. Steel Rule - for small measurements, due to magnification, video makes the job much easier and more precise. This tiny 3mm screw becomes huge on the video monitor.

A measurement that is almost impossible without video. The Horizontal (X) dimension is measured from a hand held caliper to get a calibration. Then the vertical (y) measurement is made with video. due to the taper of the left portion, an erroneous measurement would be made with a hand held caliper.

A number of additional features have been added to simplify day to day usage. Cursors may be moved fully independently or may be moved in pairs where one control moves both cursors on the same axis and the second control changes the spacing between them. Each control may be independently locked to avoid inadvertent adjustment. Controls can also be independently locked from within the menu system, regardless of the state of the lock button as further protection against accidental change. The lines may be displayed full screen or can be displayed as a box on screen. A front panel bypass switch allows the user to quickly turn the line and coordinate display off or on as needed. A color bar generator is provided for simple monitor testing and adjustment.

All VMU series products can be powered from a +12VDC, negative ground power source. A serial remote option is also available for use with automated systems. Contact MicroImage Video Systems for units that work with RGB Video signals. For OEM applications, MicroImage Video Systems can provide board level product, private labeling or even custom functions. The units are based on a new MicroImage Video platform which is highly flexible and programmable. All units carry a one year parts and labor limited warranty.