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Class Information
Number: 324/96
Name: Electricity: measuring and testing > Measuring, testing, or sensing electricity, per se > Using radiant energy
Description: Subject matter utilizing radiant energy means as a part thereof.










Sub-classes under this class:

Class Number Class Name Patents
324/97 Light beam type (e.g., mirror galvanometer, parallax-free scale) 36


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Patent Number Title Of Patent Date Issued
5955875 Linearized optical sampler Sep. 21, 1999
5952818 Electro-optical sensing apparatus and method for characterizing free-space electromagnetic radiation Sep. 14, 1999
5952819 Auto-zeroing current sensing element Sep. 14, 1999
5945667 Method for temperature compensation of measuring signals of a fiber-optic sensor Aug. 31, 1999
5939711 Electro-optic voltage sensor head Aug. 17, 1999
5939874 Voltage detection circuit having comparator pairs with mutually connected inputs Aug. 17, 1999
5936395 Electro optic voltage sensor with optic fiber Aug. 10, 1999
5933238 Optical current measurement device and method of manufacturing it Aug. 3, 1999
5933001 Method for using a wideband, high linear dynamic range sensor Aug. 3, 1999
5933000 Process and arrangement for measuring a magnetic field using the faraday effect with compensation for variations in intensity and temperature effects Aug. 3, 1999
5896035 Electric field measuring apparatus Apr. 20, 1999
5895912 Method and device for measuring an alternating electric quantity with temperature compensation by fitting Apr. 20, 1999
5892357 Electro-optic voltage sensor for sensing voltage in an E-field Apr. 6, 1999
5861741 Magneto-optical element Jan. 19, 1999
5859531 Displacement apparatus using a magnetic optic sensor and position dependent magnetic field Jan. 12, 1999
5850140 Electric field sensor having sensor head with unbalanced electric field shield to shield branched optical waveguides against an applied electric field Dec. 15, 1998
5847560 Process and device for measuring an alternating electric current with temperature compensation Dec. 8, 1998
5844410 Device for optically measuring physical quantity in power equipment and method of manufacturing the same Dec. 1, 1998
5844409 Method and system for measuring an electric current with two light signals propagating in opposite directions, using the Faraday effect Dec. 1, 1998
5844288 Photoconductive element and method for measuring high frequency signals Dec. 1, 1998
5834933 Method for magnetooptic current measurement and magnetooptic current-measuring device Nov. 10, 1998
5825174 Temperature responsive battery tester Oct. 20, 1998
5818216 Minimally invasive current sensing circuit Oct. 6, 1998
5811964 Method and device for measuring an electrical alternating quanity with temperature compensation Sep. 22, 1998
5796347 Control of a device in an inaccessible location Aug. 18, 1998
5780845 Optical current transformer Jul. 14, 1998
5780847 Verdet constant temperature-compensated current sensor Jul. 14, 1998
5781003 Electric field sensor Jul. 14, 1998
5770946 Photon assisted sub-tunneling electrical probe, probe tip, and probing method Jun. 23, 1998
5767688 Electro-optic voltage measurement apparatus Jun. 16, 1998
5764046 Optical method and device for measuring an alternating electrical current with temperature compensation Jun. 9, 1998
5757198 Method and apparatus for detecting an IC defect using charged particle beam May. 26, 1998
5751143 Opto-electronic system for the acquisition of signals indicating the presence of a voltage and its phase May. 12, 1998
5747985 Optical-electronic demand meter using optical metering outfit May. 5, 1998
5742157 Optical fiber magnetic-field sensor Apr. 21, 1998
5736737 Concatenated magneto-optic field sensors Apr. 7, 1998
5734263 Electro-optic voltage transducer with extended range and temperature compensation Mar. 31, 1998
5731579 Electro-optical voltage sensor head Mar. 24, 1998
5729005 Fiber optic current sensor with bend birefringence compensation Mar. 17, 1998
5715058 Method and device for the optical determination of a physical quantity Feb. 3, 1998
5703491 Voltage detection apparatus Dec. 30, 1997
5698847 Optical-modulation-type sensor and process instrumentation apparatus employing the same Dec. 16, 1997
5677678 Fault indicator having auxiliary fault sensing winding Oct. 14, 1997
5677635 Voltage and displacement measuring apparatus and probe Oct. 14, 1997
5677622 Current sensor using a Sagnac interferometer and spun, single mode birefringent optical fiber to detect current via the Faraday effect Oct. 14, 1997
5670871 Polymeric film electrooptic sensor device Sep. 23, 1997
5670870 Electric field sensor capable of reliably measuring an electric field intensity of a signal Sep. 23, 1997
5666062 Voltage measuring using electro-optic material's change in refractive index Sep. 9, 1997
5666048 Technique and apparatus for measuring a direct current flowing through a conductor at high voltage Sep. 9, 1997
5663639 Apparatus and method for optical heterodyne conversion Sep. 2, 1997

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