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Measuring system configuration

A special manufacturing technology is used to fabricate the scale in the form of a closed measuring ring. This, in turn, is related in two variants as rigidly welded to a WMF-type measuring flange, or direct as a thin WMR-type measuring ring, for assembly by the customer. Implementing the new measuring scale WMR as a thin, closed ring for the measurement of angles or rotation speeds offers high flexibility to drive design.Fitting the measuring ring in the transmission chain turns an existing part of the machine into a measuring flange. Other advantages of the measuring ring design:Extremely low inertia The part of the spindle onto which the measuring ring is fitted can consist of any material High rotation speeds can be achieved due to the extremely stable structure of the ringThe design of the sensor unit (Fig. 3) is
AMOSIN ANGLE MEASURING SYSTEM(Fig. 3) Electronic evaluation stageSensorplanar coil structure on radiusMeasuring trackReference trackMetal coverMeasuring ring unique to the AMOSIN angle measuring systems.The planar coil structure, consisting of a number of coil elements, is applied to a flexible substrate, so that its radius can therefore be adapted to any required diameter of (measuring flange). With this arrangement, it is ideally possible to average the signal over several grating pitches. A plane scanning surface, such as a glass plate or a rigid silicon substrate, incorporating individual sensitive elements, can only approximate to this, and is therefore less suitable for scanning a cylindrically arranged scale.These angle measuring systems are used wherever precision is required under difficult environmental conditions (e.g. oil, dust, coolant and so forth - protection class IP 67).A speciality of these measuring systems is the ease with which it can be integrated into customers existing mechanics, regardless of whether the mechanical parts are supplied to us for integration of the measuring ring, or whether AMO manufactures the special mechanical parts, incorporating the scale body, in accordance with customers' drawings.
® ScanningheadMeasuringflange The design of the measuring system based on the basic components: the scale body, sensor and the evaluation electronics is very flexible, and can be adapted to the special requirements of any particular application. The main selection criteria are given further (see also selection table page 6): Generally speaking, any type of Measuring scale can be combined with any scanning head version, provided the following properties for the two components match:Grating pitchType of scanningNumber of grating pitches per circumference !!! 1. Grating pitch:2. Type of scanning:3. Measuring scale:4. Scanning head: - = 1000 µm for maximum precision- = 3000 µm for larger assembly tolerancesScanning head relative to scale body:- outside scanning - inside scanning- measuring flange- measuring ring- miniature version with electronics in connector- fully integrated electronics

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