AC Milliammeter, Model J0414, is suitable for the laboratories of middle schools and polytechnic schools to measure current intensity in the AC circuit.
Finally, a mechanism of AC etching for aluminum foil in HCl and a theoretical rule for choosing electroetching conditions were suggested on the results.
This paper presents the parameter selection and design method of saturant reactor for the start of high-voltage ac motor. The concrete example is given.
The magnetooptic self-nulled ellipsometer,with ac Farady magnetooptic modulating and phase locking to detect nulled point,has the high abilities of prevent interference and angular recognize.
NIST measures the AC-DC difference of customer's thermal voltage converters by comparing them with standards composed of a thermoelement in series with a multiplying resistor.