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