It was in late 2000, shortly after the introduction of the Fluke 189, when a customer called in with a question about measuring ac ripple voltage at the output of a bridge rectifier circuit capable of producing currents of 20 Amps, or more. And, sure enough, he had taken the readings in...
Adjustable Accurately 32V/6A Switch DC Power Supply with Accurate Encoder Adjustment Knob for Measuring,Testing and Repairing Tools & Home Improvement
So, it's a mishmash of different levels for each one, and the only real way of getting any kind of consistency is to add a preamp to the Aux in, with a fixed gain for that particular unit. I could just knock up a few boards with a stereo pot for setting the level, but it wou...
The AC waveforms at the dummy load are sinewaves. Since our multimeter can't measure with any accuracy the amplitude of these waveforms, we'll have to use some electronic circuits to transform AC amplitude to a DC amplitude. Once converted to DC, our multimeter can measure amplitude with goo...
The LED’s forward voltage must be measured with submillivolt accuracy after the high-current pulse, which is difficult when the overall circuit voltage can approach 200 V. The 34411A digital multimeter from Agilent Technologies Inc. of Santa Clara, Calif., was used because it is a high-spee...
Likewise, the short-circuited current, ISCmeans that the PV panels terminals are shorted or connected together (zero resistance) creating a fully closed electrical circuit allowing maximum panel current, in this case 5.92 amps, to flow. However, as the terminals are shorted together there will be...
With 5 watts coming into the meter, the line voltage will be 0.3162(rms) amps flowing through the 0.5 ohm (equivalent) current sense resistor. This gives 0.3162 x 0.5 = 0.1581 volts on the current transformer's one-turn primary winding. This voltage is stepped up by a factor of ten to...
It was in late 2000, shortly after the introduction of the Fluke 189, when a customer called in with a question about measuring ac ripple voltage at the output of a bridge rectifier circuit capable of producing currents of 20 Amps, or more. And, sure enough, he had taken the readings in...
EU Plug Electricity Power Energy Watt Voltage Amps Volt Current Meter Analyzer Usage Monitor with Digital LCD Display $3.80 - $4.32 $3.80 - $4.32 20% off Min. order: 5 pieces DDS109L Digital Wattmeter AC Power Meter Energy Meter Electricity Usage Monitor Socket Kilowatt Wattage Voltage with Ba...
A probe card for testing semiconductor wafers, and a method for fabricating the probe card are provided. The probe card is adapted for use with a wafer probe handler, and a tester containing test circuitry. The probe card includes a substrate, and patterns of probe contacts formed on the sub...