Measurements technics
Measurements technics - oscilloscopes, voltmeters, multimeters, generators - review, tests
- 11.02.2015 - 20:14In this story, we explore the latest features and kinds of oscilloscopes that play an integral role in effectively testing designs today. We also learn how new technologies in oscilloscopes are enabling test and embedded engineers to design better.As an engineer, if you want to improve your design overall, effective testing is an integral part....
- 16.01.2015 - 20:23Cathode ray oscilloscope (CRO) is a versatile laboratory instrument which is used to display, measure and analyse electrical signals. It is nothing but a fast x-y plotter that displays an input signal versus another signal or time. There is a luminous spot which moves over the display area in response to the input voltage. But displaying a monochro...
- 10.01.2015 - 22:28The integrated circuits (ICs) 74xx04 and 74xx14 are very frequently used and reused during circuit design. Here xx stands for HC, HCT, AC and LS, etc. Sometimes, the internal inverters of these ICs get damaged. So, it is very important to test these ICs before initiating any experiment and sometimes during the experiments.Presented here is...
- 10.01.2015 - 21:19Presented here is a simple pedometer circuit. It measures the distance covered by you while walking. It may not work very well for running!Circuit and workingFig. 1 shows circuit diagram of the distance counter. The circuit is built around quad 2-input Schmitt trigger CD4093 (IC1), CMOS ripple carry binary counter/divider CD4024 (IC2), deca...
- 29.12.2014 - 22:35A multimeter for an electronics engineer is as essential as a stethoscope is for a physician. It is an extremely useful, indispensable diagnostic tool for electronics design professionals, students and hobbyists-but is there anything more to it? this article provides some insights into the latest trends in multimeters.A multimeter is a very han...
- 08.12.2014 - 17:30Described here is a simple RJ45 cable tester circuit which can be used for testing the RJ45 network cables. The circuit can check both straight-through and crossovertype RJ45 network cables. This is a low-cost tester designed using easily available components. Fig. 1 shows the difference between straight-through and crossover network cables. The te...
- 08.12.2014 - 16:08Electromechanical energy meters have been the standard for metering the electricity since billing began. But these are now being gradually replaced by electronic digital energy meters. Presented here is a simple energy meter using Analog Device's ADE7757 chip for single-phase, 2-wire (phase and neutral) systems used in households. IC ADE7757 is...
- 05.12.2014 - 23:35Being an electronics/electrical field engineer is a challenging job, and for a person engaged in this job T&M tools are just like weapons to a warrior in the war field. in many cases in india, people rely on ‘jugad’tools for a lot of test and measurement activities, but those are neither safe, nor accurate. So presented here are all...
- 02.12.2014 - 22:57Presented here is a handheld device that can be used to measure magnetic field using a Hall effect-based sensor. The device can be used in the physics lab for conducting various experiments on magnetism. Moreover, some upgradations can be made to develop new and advanced devices. The device shows magnetic field in CGS (centimetre-gram-second system...
- 16.11.2014 - 23:28MOST OF THE CONSTRUCTION work involves building the two PCB assemblies used in the counter. Before building these boards, however, note that we’ve made a few changes to the circuit published last month in order to achieve optimum performance. This involves a few component value changes, plus the addition of two extra components.The detail...