Fluke 8842a instruction manual Measurement Tutorial

Chapter 4

Measurement Tutorial

	Title	Page
4-1.	INTRODUCTION	4-2
4-2. DC VOLTAGE MEASUREMENT		4-2
4-3.	Circuit Loading Error	4-2
4-4.	Input Bias Current Error	4-3
4-5.	RESISTANCE MEASUREMENT	4-4
4-6.	2-Wire Ohms	4-4
4-7.	Correcting for Test Lead Resistance in 2-Wire Ohms	4-5
4-8.	4-Wire Ohms	4-5
4-9.	Applications of the Ohms Functions	4-7
4-10.	TESTING DIODES	4-7
4-11.	TESTING ELECTROLYTIC CAPACITORS	4-7
4-12.	A PRECISION CURRENT SOURCE	4-8
4-13.	DC CURRENT MEASUREMENT	4-8
4-14.	REDUCING THERMAL VOLTAGES	4-9
4-15.	AC VOLTAGE AND CURRENT MEASUREMENT	4-10
4-16.	True RMS Measurement	4-10
4-17.	Waveform Comparison	4-10
4-18.	Crest Factor	4-12
4-19.	AC-Coupled AC Measurements	4-12
4-20.	Combined AC and DC Measurements	4-13
4-21.	Bandwidth	4-13
4-22.	Zero-Input VAC Error	4-13
4-23. MAKING ACCURATE MEASUREMENTS ON THE 20 mV
	AND 20Ω RANGES	4-14
4-24.	MAKING ACCURATE HIGH-RESISTANCE MEASUREMENTS . 4-15

4-1