Pizzi Instruments S.r.l products

The optical alignment collimator is an instrument produced by Pizzi Instruments and designed especially for monitoring movement at dam crests. The instrument, of notable optical-mechanical characteristics, with an objective lens of 80mm diameter and 60X magnification, allows optical alignment between two points considered fixed, this alignment defines a fixed vertical plane which allows the detection of movement of points in the structure aligned with it. The collimator is always positioned at the same station point thanks to special bases which allow repeat placing in the exact same position.

The operating principle of this instrument is very simple. Movement of the movable target carriage is by a motorization system inside the target itself. This system, conveniently connected by 3 wire cable to an appropriate ‘control device’, allows screen movement in the two opposite directions of the horizontal plane; a 3-digit mechanical index (each digit 15mm high), visible on the screen of the target, provides the measurement value via the optical collimator.