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2G025 | Measuring instrument details and bridges, and automatic balancing devices | |
G01R15/00 -17/22 |
G01R15/00;15/00,300;15/00,500;15/04;15/06;15/06@A-Z;15/14;15/14@A-Z;15/16;15/18;15/18@A-Z;15/20;15/20@A-Z;15/22;15/24;15/24@A-Z;15/26 | AA | AA00 PURPOSE OF HIGH VOLTAGE AND HIGH CURRENT MEASURING DEVICES |
AA01 | AA02 | AA03 | AA04 | AA05 | AA06 | AA07 | AA08 | AA09 | AA10 |
. Integrally attached structures | . . Molded structures | . Removal and replacement or maintenance. | . Positioning of sensors (i.e., including optical axis alignment) | . Size reduction | . Coupling with insulators | . Noise shielding | . Temperature compensation | . . Structural temperature compensation | . Floating capacitance elimination | |||
AA11 | AA12 | AA13 | AA14 | AA15 | AA16 | AA17 | ||||||
. Electrostatic induction and electromagnetic induction elimination | . Loss, fluctuation elimination (i.e., including loss in optical fibers) | . Non-linear compensation | . Bias circuit adjusting circuits | . For polyphase lines | . Power sources and auxiliary power sources that are attached to the sensor section | . Insulation | ||||||
AB | AB00 HIGH VOLTAGE AND HIGH CURRENT DETECTORS |
AB01 | AB02 | AB03 | AB04 | AB05 | AB06 | AB07 | AB08 | AB09 | AB10 | |
. Magneto-electric converting elements | . . Hall elements | . . Lead switches | . Shunts | . . Shunt resistors | . Voltage dividers | . . Capacitative voltage dividers | . . Resistance voltage dividers | . Light modulating means | . . Faraday elements (i.e., magneto-optical elements) | |||
AB11 | AB12 | AB13 | AB14 | AB15 | AB16 | |||||||
. . Pockels elements (i.e., electro-optical elements) | . . Light emitting elements (i.e., light emitting diodes, lamps, and discharge tubes) | . . Reflectors and light blocking materials (LCD's and mirrors) | . Current transformers | . . DC current transformers | . Potential transformer | |||||||
AC | AC00 TRANSMISSION METHODS FOR HIGH VOLTAGE AND HIGH CURRENT DETECTED VALUES |
AC01 | AC02 | AC03 | AC04 | AC05 | AC06 | AC07 | AC08 | AC09 | ||
. Electric transmission | . . Amplitude modulation | . . Frequency modulation | . . Current/voltage conversion | . . Digital transmission (i.e., including binary and ternary signals) | . Optical transmission | . . Amplitude modulation | . . Frequency modulation | . . Digital transmission | ||||
G01R15/09 | BA | BA00 AUTOMATIC RANGE SWITCHING FUNCTIONS |
BA01 | BA02 | BA03 | BA04 | BA05 | BA06 | BA07 | BA08 | ||
. Range switching display | . . Variants giving voice indications | . Range storage | . . Initial range setting, setting methods, and setting sequences | . High speed range switching | . Range fixing or holding | . . Variants related to range boundaries in particular | . Error compensation during range switching | |||||
G01R15/08 | BB | BB00 MANUAL RANGE SWITCHING FUNCTIONS |
BB01 | BB02 | BB03 | BB04 | ||||||
. Erroneous range switching protection | . Display during range switching | . Shorting or disconnection prevention | . Variants that operate remotely | |||||||||
G01R15/00,100;15/00,100@A-Z | CA | CA00 PURPOSE CONVERTERS HAVING THE INDICATED CHARACTERISTICS |
CA01 | CA02 | CA03 | CA04 | CA05 | |||||
. Temperature compensation | . Zero point adjustment | . Drift elimination | . Improvement of characteristics (e.g., errors) | . Conversion range expansion | ||||||||
CB | CB00 METHOD OF CONVERTING INDICATED CHARACTERISTICS |
CB01 | CB02 | CB03 | CB04 | CB05 | CB06 | CB07 | ||||
. Mechanical variants | . Digital types | . . Frequency modulation and pulse count modulation | . Analog types | . . Logarithmic conversion | . Line segment approximation | . Hybrids | ||||||
CC | CC00 ELEMENTS OF CONVERTING CIRCUITS HAVING THE INDICATED CHARACTERISTICS |
CC01 | CC02 | CC03 | CC04 | CC05 | CC06 | CC07 | CC08 | |||
. Microprocessors | . Memory (ROM and RAM) | . Arithmetic calculators | . Exponent to number converters | . Non-linear elements | . . Diodes, transistors and FET's | . . Capacitors | . . Operational amplifier comparators | |||||
G01R15/12;15/12@A-Z | DA | DA00 STRUCTURAL FEATURES OF TESTERS |
DA01 | DA02 | DA03 | DA04 | DA05 | DA06 | ||||
. Display unit structures | . Switch structures | . Probe structures | . . Probe meters (e.g., variants with a display section for the probe) | . Variants with two or more functions in the same case | . Keyboards | |||||||
DB | DB00 FUNCTIONAL FEATURES OF TESTERS |
DB01 | DB02 | DB03 | DB04 | DB05 | DB06 | |||||
. Digital display functions | . Voice indication functions | . Variants having data storage functions | . Variants having automatic measuring functions (i.e., variants that are programmable) | . Variants having multiple point measuring functions | . Variants combined with additional functions (e.g., tester and calculator) | |||||||
G01R17/02;17/04;17/06;17/06@A-Z;17/10;17/12;17/12@A-Z;17/14;17/14@A-Z;17/16;17/16@A-Z;17/18;17/18@A-Z | EA | EA00 PURPOSE OF BRIDGES |
EA01 | EA02 | EA03 | EA04 | EA05 | EA06 | EA07 | EA08 | ||
. Temperature compensation | . Zero point compensation | . Protection against excessive input and protection against exceeding scale | . Measures against overshooting or undershooting | . Improvement of non-linearity | . Variable methods for bridge elements | . High speed balancing and stable balancing operation | . Transmission loss compensation | |||||
EB | EB00 POWER SOURCES FOR BRIDGES |
EB01 | EB02 | EB03 | EB04 | EB05 | ||||||
. DC voltage sources | . DC current sources | . Pulse voltage and pulse current | . AC voltage and AC current | . Variable voltage and variable frequency | ||||||||
EC | EC00 CIRCUIT ELEMENTS OF BRIDGES |
EC01 | EC02 | EC03 | EC04 | EC05 | EC06 | EC07 | EC08 | EC09 | EC10 | |
. Phase detectors | . A/D and D/A converters | . Frequency or pulse modulators | . Switching resistors | . Servo amplifiers | . Bridges | . . Frequency bridges | . . Carrier wave distortion bridges | . . Wheatstone bridges | . . Transformer bridges | |||
EC11 | EC12 | EC13 | ||||||||||
. . Sharing bridges | . . Double bridges | . . T-bridges | ||||||||||
ED | ED00 MECHANICAL ELEMENTS OF BRIDGES |
ED01 | ED02 | ED03 | ED04 | ED05 | ||||||
. Potentiometers and sliding resistors | . Pulse motors and stepping motors | . Analog servomotors | . Recording pen sections | . Relays and switches |