Optical frequency sensor for measuring speed of objects
DE4202901A1
Optical absolute angle encoder - has multiple track code, e.g. Gray code, adjacent to analogue code, and photocell array sensing both scales
DE4136888A1
Absolute-value encoder for angle and length measurements - employs only one or two coding tracks dimensioned for high resolution by two or more photodiodes
DE4018839A1
Rotation pulse generator - adaptively combines signals of three sensor offset by 120 deg. to correct eccentricity and elliptical deviations
DE2852891A1
Multiphase AC tachometer generator - has rectifier diodes commoned at generator output and connected to star windings
DE2744361A1
Motor speed control system - has tachogenerator pulse train frequency increased or reduced by fixed factor, so as to be equal to reference frequency
DE2711593A1
Tachometer operating from standstill to high speeds - uses diodes and phase-locked loop controller and has pulse frequency increased in proportion to rotational speed
DE2703886A1
Tachogenerator with correction of output voltage - has voltage compared with voltage proportional to frequency and corrected by adjustable voltage divider
DE2630733A1
Polyphase AC tachometer generator - has semiconductor rectifiers for rectification of generated voltage and indicators for direction of rotation
DE2628334A1
DC machine with distributed exciting and compensating windings - uses yoke made from AC machine stator laminations
DE2505937A1
Magnet bedding arrangement in electric machine housing - immovably held in exactly predefined position by embedding in synthetic resin
DE1958079A1
High pressure delivery pump for viscous media
DE1966070A1
Conveyor pump, especially high pressure conveyor pump
US733044A
Vise.
GB190214531A
Improvements in Vices.
GB190116668A
Improvements in Ignition Strips especially Intended for use with Miners' Safety Lamps
