221764 ⎘
Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated; Proximity switches using a magnetic detector using digital techniques
MAGNETIC SWITCH
#2ENVIRONMENTAL SENSOR CIRCUIT HAVING A CAPACITIVE PROXIMITY SENSOR AND MAGNETIC FIELD PROBE
#3INDUCTIVE PROXIMITY SENSOR FOR THE DETECTION OF AN OBJECT AND METHOD OF DETECTING AN OBJECT
#4Environmental sensor circuit having a capacitive proximity sensor and magnetic field probe
#5Safety switch
#6Oscillator and inductive proximity switch
#7Inductive proximity sensor
#8Reed switch with communication function which used for urinal
#9Systems and methods having omnipolar comparators for magnetic switches
#10Systems and methods having omnipolar comparators for magnetic switches
#11Inductive proximity sensor
#12Inductive proximity sensor
#13Inductive proximity sensor and related methods
#14Ternary sensor inputs
#15Method for checking the switching region of a touch-free switching system
#16Inductive proximity sensor
#17Apparatus and method for processing capacitor sensor signals using digital frequency shift measurement techniques with floating reference