Title :
A low-current precision DC, AC and DC/AC clamp-on measurement sensor
Author :
Shiyan Ren ; Hengchun Ding ; Shengneng She
Author_Institution :
Dept. of Electr. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
fDate :
June 27 1994-July 1 1994
Abstract :
A low-current precision DC, AC and DC/AC clamp-on measurement sensor is described that can be used to make on-line calibration and measurement of DC, AC and DC/AC low-current in industry and laboratory. The sensor features current ratio accuracy grade of better than (5/spl sim/10)/spl times/10/sup -4/ for 10/spl sim/200 amperes current range, current resolution of 0.01 ampere, and transient response time of less than 1/spl times/10/sup -3/ second for the DC, AC and DC/AC clamp-on prototype.<>
Keywords :
calibration; detectors; electric current measurement; electric sensing devices; 10 to 200 A; DC/AC clamp-on measurement sensor; current ratio accuracy grade; industry; laboratory; online calibration; power energy meters; power transformers; Clamps; Current measurement; DC generators; Frequency modulation; Magnetic cores; Magnetic modulators; Magnetic sensors; Sensor phenomena and characterization; Sensor systems; Toroidal magnetic fields;
Conference_Titel :
Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on
Conference_Location :
Boulder, CO, USA
Print_ISBN :
0-7803-1984-2
DOI :
10.1109/CPEM.1994.333389
