Patents
Patents for G01R 33 - Arrangements or instruments for measuring magnetic variables (52,887)
07/1977
07/12/1977US4035721 System and method using magnetic tape for testing of small cylindrical parts
07/05/1977US4034191 Spectrometer means employing linear synthesized RF excitation
06/1977
06/28/1977US4032953 Sensing circuits
06/21/1977US4031460 Device for measuring the magnetic flux distribution along the length of elongated magnetized element
05/1977
05/31/1977US4027234 Device for measuring terrestrial magnetic field horizontal components and variations thereof
05/24/1977US4025844 Granular superconducting quantum interference device and apparatus including same
05/10/1977US4023093 Magnetic field radiation detector
05/03/1977US4021728 Magnetic field sensing apparatus for sensing the proximity of a member having high magnetic permeability without requiring an external field source
05/03/1977US4021726 Image formation using nuclear magnetic resonance
04/1977
04/26/1977US4020475 Magnetic device operating with the photomagnetic effect
04/19/1977US4019130 Method for measuring wear of cooling cell assembly
04/12/1977US4017791 Method and apparatus for measuring variations in magnetic field orientations
03/1977
03/29/1977US4015196 Analysis of materials
03/22/1977US4013946 Means for determining a first magnetic field direction by measuring secondary magnetic fields induced in a body rotated in said first field
03/22/1977US4013591 Composite superconducting materials
03/22/1977US4012870 Apparatus for measuring and changing vibration frequency of metal B
03/15/1977US4012781 Magnetoresistive read head assembly for servo operation
03/01/1977US4010486 Sensing circuits
02/1977
02/15/1977US4008432 Apparatus for detecting an external magnetic field
02/08/1977US4007417 Thin film magnetometer using an orthogonal flux gate
02/01/1977US4006408 Magnetic material detecting device
02/01/1977US4006407 Non-destructive testing systems having automatic balance and sample and hold operational modes
02/01/1977US4006406 Inductively operated sensor for testing technological quantities of a ferromagnetic work piece
01/1977
01/25/1977US4005358 Magnetometer with out-of-phase correction
01/25/1977US4005355 Method and apparatus for stimulating narrow line resonance conditions
01/18/1977US4004217 Flux locked loop
12/1976
12/21/1976US3999120 Spherical sector for sensor probe
12/21/1976US3999118 Spectrographic analysis of materials
12/14/1976US3997909 High carrier velocity magnetic sensor
11/1976
11/30/1976US3995213 Surface impedance tester
11/09/1976US3991361 Semi-automatic compass calibrator apparatus for a vehicle mounted flux gate compass system to cancel out effect of local magnetic disturbances
10/1976
10/19/1976US3987363 Apparatus for testing thin layers of bubble domain material for defects
10/19/1976US3987361 Nuclear magnetic resonance temperature equilibration and method for oil in wax determination
10/12/1976US3986105 Dual purpose electromagnetic thickness gauge
10/05/1976US3984763 Device for the non-destructive measurement of the remanent flux density of magnetic recording media, especially magnetic discs
09/1976
09/28/1976US3983475 Frequency selective detecting system for detecting alternating magnetic fields
09/21/1976US3982179 Magnetic gradient detector with means for adjusting the parallelism of the sensors
09/21/1976US3982178 Method of determining adequacy of substrate memory wire during the plating process
09/14/1976US3980949 Magneto-optical measuring transducer for very high currents/voltages
09/07/1976US3979775 Magnetoresistive multitransducer assembly with compensation elements for thermal drift and bias balancing
09/07/1976US3979600 Sense circuit arrangement
08/1976
08/31/1976US3978399 Integrating fluxmeter with input current compensation to cancel drift
08/31/1976US3978398 Method for nondestructive magnetic inspection of an object employing a putty-like magnetic recording medium
08/31/1976US3977072 Method of manufacturing a magnetic locator
08/24/1976US3976938 Superconducting magnetic sensor with improved balancing system
08/24/1976US3976935 Apparatus for measuring the internal field intensity of magnet bodies
08/24/1976US3976934 Method and apparatus for the continuous, contactless testing of a long conductor which consists at least partially of superconductive material
08/17/1976US3975675 Impulse response magnetic resonance spectrometer
08/03/1976US3973183 Method and apparatus for detecting uneven magnetic field by a change in resistance of semiconductor element
08/03/1976US3973182 Method and apparatus for detecting uneven magnetic field by hall effect in semiconductor
07/1976
07/27/1976US3972035 Detection of magnetic domains by tunnel junctions
07/27/1976US3971981 Magnetism detecting system
07/27/1976US3971434 Apparatus and method for oil-in-wax determination
07/20/1976US3971038 Coercivity control and detection signal generating pattern for uniaxially anisotropic ferromagnetic crystal platelets
07/13/1976US3969769 Magneto-resistive head
07/06/1976US3968424 Fourier transform NMR spectroscopy employing a phase modulated rf carrier
07/06/1976US3968423 Nuclear magnetic resonance apparatus of fourier transform type
07/06/1976US3967368 Method for manufacturing and using an internally biased magnetoresistive magnetic transducer
06/1976
06/29/1976US3966973 Measuring impedance of alternating current
06/29/1976US3966764 Electron spin resonance
06/29/1976US3966744 Spin labeled compounds
06/29/1976US3966409 2,2,4,4-tetramethyl oxazolidine-3-oxyl
06/22/1976US3965411 Gradient wound trim coil for trimming a primary pickup coil
06/08/1976US3962628 Adjustable magnetic gradiometer
06/01/1976US3961245 Magnetic locator having improved sensors
06/01/1976US3961244 Magnetizing means for a magnetic flaw detector including a charging and discharging circuit
06/01/1976US3959889 Method and apparatus for determining a measured direction relative to an external magnetic direction
05/1976
05/25/1976US3959287 Ligand determination of spin labeled compounds by receptor displacement
05/11/1976US3956690 Trimmed superconductive magnetic pickup coil circuits
05/04/1976US3954410 Solvents for NMR spectroscopy
04/1976
04/27/1976US3953840 Magneto resistive bubble detection device
04/27/1976US3953789 Method of polarizing nuclei
04/27/1976US3952420 Digital solid state compass
04/06/1976US3949345 Multiple magnetoresistance element
03/1976
03/16/1976US3944912 Magnetic detection means for sensing mobile ferromagnetic masses including pulse shaper circuit for generating a single pulse output
03/16/1976US3943763 Magnetic heading reference
02/1976
02/24/1976US3940688 Device for testing the magnetic properties of a magnetic material
02/17/1976US3939403 Device for maintaining constant the temperature of a coil fed by an A.C. current source
02/17/1976US3939402 Oscillographic ferrometer
02/10/1976US3938110 Method of controlling magnetic strip domains
02/10/1976US3938037 Device for measuring the ferrite content in an austenitic stainless steel weld material
02/10/1976US3937955 Fourier transform ion cyclotron resonance spectroscopy method and apparatus
01/1976
01/20/1976US3934192 Method of detection of ions in solution that are susceptible to an applied force field and apparatus therefor
01/13/1976US3932813 Eddy current sensor
01/13/1976US3932805 Method of obtaining internal information of a measuring target from the out-side by the application of a nuclear magnetic resonance phenomenon
01/06/1976US3931572 Method and apparatus for measuring magnetic fields utilizing odd harmonics of an excitation signal
01/06/1976US3931569 Narrow cavity low cost EPR spectrometer