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Class Information
Number: 324/207.26
Name: Electricity: measuring and testing > Magnetic > Displacement > Approach or retreat
Description: Subject matter in which the (1) the sensing device gives an indication when approaching or being approached by a magnetic field, or (2) the sensing device gives an indication when retreating or being retreated by a magnetic field, or (3) an object approaches or retreats from the sensor"s magnetic field.

Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8710828 Actuators and moveable elements with position sensing Apr. 29, 2014
8542006 Movement detection circuit of solenoid shear seal valve on subsea pressure control system and method of detecting movement of solenoid actuator Sep. 24, 2013
8531182 Control system and method for providing position measurement with redundancy for safety checking Sep. 10, 2013
8508219 Object state detection apparatus and method Aug. 13, 2013
8502529 Magnetic sensor device Aug. 6, 2013
8461831 Flow tracking in block caving mining Jun. 11, 2013
8416076 Magnetic proximity sensor system and associated methods of sensing a magnetic field Apr. 9, 2013
8390449 Intrusion detection system and sensor device thereof Mar. 5, 2013
8378667 System and method for detecting the passage of an object in pipeline including shielded magnetometer and a microcontroller with adaptive thresholding detection means Feb. 19, 2013
8283919 Magnetic sensor and electronic device including the same Oct. 9, 2012
8237429 Method and device for measuring the pole orientation angle of a magnetic levitation vehicle on a magnetic levitation track Aug. 7, 2012
8222892 Sensor for simultaneous position and gap measurement Jul. 17, 2012
8203335 System and method for an inductive proximity switch on a common substrate Jun. 19, 2012
8198890 Method for determination of a parameter set which describes electrical parameters of a track section of a magnetic levitation railroad Jun. 12, 2012
8198888 Method and system for determining the distance between a profiled surface and a functional surface moving in relation thereto by using measurement coils and a reference coil Jun. 12, 2012
8188730 Method and system for inductive proximity sensing that includes mounting effect compensation May. 29, 2012
8183858 Method and arrangement for measuring a gap May. 22, 2012
8132529 Applicator for automatic discharge of a corrosion preventative to a sensor surface Mar. 13, 2012
8129984 Multiple dimension position sensor Mar. 6, 2012
8106654 Magnetic sensor integrated circuit device and method Jan. 31, 2012
8102172 Position detector including magnetoresistive elements Jan. 24, 2012
8085037 Method and device for measurement of the pole orientation angle of a magnetic levitation vehicle of a magnetic levitation railroad Dec. 27, 2011
8049491 Position detecting device, and seat position detecting device of vehicle Nov. 1, 2011
8040126 Position detection device and optical apparatus Oct. 18, 2011
8022692 Direction detection sensor Sep. 20, 2011
8008911 Method and device for the determination of the road clearance of a vehicle Aug. 30, 2011
7999538 Device and system for detecting position Aug. 16, 2011
7999539 Proximity sensor Aug. 16, 2011
7994777 Apparatus and methods for an inductive proximity sensor Aug. 9, 2011
7994778 Inductive presence or position sensor for detecting both ferrous and non-ferrous metals Aug. 9, 2011
7956605 Apparatus detecting relative body movement Jun. 7, 2011
7933730 Method and system for restoration of a navigation data loss in image-guided navigation Apr. 26, 2011
7932796 Switch device Apr. 26, 2011
7924103 Inductive proximity switch and method for its operation Apr. 12, 2011
7924105 Method for the detection of a predamping state and inductive sensor with predamping detection Apr. 12, 2011
7915887 Device for generating a magnetic field in a goal area for taking a goal decision Mar. 29, 2011
7902818 Inductive proximity detector with switched windings Mar. 8, 2011
7887282 Media transportation mechanism and media processing device having the media transportation mechanism Feb. 15, 2011
7876093 Eddy current inspection device, proximity probe and method for assembling an eddy current inspection device Jan. 25, 2011
7876186 Electronically actuated apparatus Jan. 25, 2011
7868609 Position sensor Jan. 11, 2011
7863891 Collision detection device which uses variation of an inductance of a coil Jan. 4, 2011
7847541 Actuators and moveable elements with position sensing Dec. 7, 2010
7843191 System and method for measuring rotational movement of a component from regions magnetized in a magnetically hard layer of the component Nov. 30, 2010
7834618 Position sensor system Nov. 16, 2010
7808235 Apparatus and methods for proximity sensing circuitry Oct. 5, 2010
7791336 Displaceable magnetic detection device Sep. 7, 2010
7777481 Linear motion assembly having a self-energizing sensing device and method of detecting moving ferrous elements in a linear motion assembly Aug. 17, 2010
7772838 Methods and apparatus for vibration detection Aug. 10, 2010
7768257 Systems and methods for determining the position of an electrical solenoid Aug. 3, 2010

1 2 3 4 5 6 7 8 9

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