Precision probe, in particular as a displacement sensor
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Device indicating the presence of safety strips in a surveillance area
DE3101031A1
Device for indicating the presence of security strips in a surveillance area
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Theft prevention system for warehouse - detects presence of magnetisable security strip within inductive surveillance zone
DE3045703A1
Sensing and deactivating unit for goods containing security strip - has coils wound around insertion aperture of control chamber
DE3037945A1
Price etc. label with adhesive layer - has magnetisable strip between label and adhesive to give signal for store theft prevention
DE3037944A1
Security detector for controlled zone - has sensor coils located in grooves in block and adjustable for optimum performance
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Plunger type limit switch - has compressed compression spring positioned around plunger support pin
DE3031056A1
Laser beam range finder test unit - employs echo signal from sensors through interference filter, diode matrix, amplifier, schmitt trigger, memory interface and display
DE3015811A1
Deactivator for security strip on saleable goods - has deactivating coil pulsed from thyristor controlled capacitor discharge
DE3003370A1
Fine distance measurement sensor - having economical construction and using flexible spring carrying sensing piece and strain gauges
DE2931932A1
Marking strip for object detection monitored zone - has high permeability strip and narrower high coercivity strip
DE2924803A1
Carrier frequency amplifier output offset voltage reduction - using operational amplifier and FETs to measure reduction of DC voltage stage
DE2856285A1
Bridge balancing network for amplifier of carrier frequency meter - supplies output to pair of inputs of amplifier with other pair fed from divider
DE2837945A1
EXPANSION TRANSFORMER
DE2716062A1
Anti-theft detector for stores - has two inductive loops operated in anti-phase to produce dead zone whose position is varied by de-tuning
DE2657231A1
Quick break switch with operating pusher - has snap action element interacting with pusher, and permanent magnet energy store
DE2634624A1
Linear interpolator for machine tool - has pair of pulse addition and register circuits which supply signals to comparator and to determine end:point of carriage movement
