Limitations of Ammeters & Oscilloscopes for Measuring Current & Voltage

Thread starter dagg3r
Start date Sep 30, 2005
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Current Measuring Voltage

AI Thread Summary

Ammeters can be inaccurate when measuring current in the nanoamp range due to their internal resistance, which can affect the circuit being tested and lead to measurement errors. Additionally, the sensitivity of ammeters may not be sufficient for very low currents, resulting in unreliable readings. Cathode ray oscilloscopes (CROs) can also produce inaccurate voltage plots because of factors like bandwidth limitations, probe loading effects, and calibration errors. These limitations can distort the waveform and lead to misinterpretation of the signal characteristics. Understanding these constraints is crucial for accurate measurements in electronic applications.

Sep 30, 2005

dagg3r

hi can somebody just breiefly list me some points about ammeters and how they are inaccurate and why when measuring in current in nano

and also about the cathode ray oscilloscope how when we plot voltages it is inaccurate and why.

thanks just basically want to know the limitations of these equipments

Last edited: Sep 30, 2005

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Oct 2, 2005

hotvette

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This might help.

http://www.allaboutcircuits.com/vol_1/chpt_8/4.html

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