Robot Building for Beginners, Third Edition
CHAPTER 4 ■ DIGITAL MULTIMETER Digits 3½ digits means that numbers up to 1999 can be displayed (with a floating decimal point). ...
CHAPTER 4 ■ DIGITAL MULTIMETER Overload/Fuse Protection Almost every multimeter includes protection to prevent permanent damage ...
CHAPTER 4 ■ DIGITAL MULTIMETER Duty Cycle Measured in percentages, duty cycle indicates how often a measurement is high as oppos ...
CHAPTER 4 ■ DIGITAL MULTIMETER Auto Power Off It’s common to forget to turn off the multimeter as your mind considers the task a ...
CHAPTER 4 ■ DIGITAL MULTIMETER Transistor A transistor mode measures the hFE (or b), which indicates the amount of amplification ...
CHAPTER 4 ■ DIGITAL MULTIMETER Dual Display A dual display includes a small, second set of digits in a corner of the display so ...
CHAPTER 4 ■ DIGITAL MULTIMETER Data Interface A data interface (see Figure 4-11) communicates measurements to a personal compute ...
CHAPTER 4 ■ DIGITAL MULTIMETER Temperature Measured in degrees Celsius or degrees Fahrenheit, a temperature mode indicates how h ...
CHAPTER 4 ■ DIGITAL MULTIMETER Figure 4-13. Meter transitioning through logic states Figure 4-14. Rubber boot (edge cover) for m ...
CHAPTER 4 ■ DIGITAL MULTIMETER If a rubber boot is available but not included with the meter, it might be best to purchase the b ...
CHAPTER 4 ■ DIGITAL MULTIMETER A pair of hooks can be more perilous in that the multimeter becomes physically attached to the ci ...
CHAPTER 4 ■ DIGITAL MULTIMETER Display: 1999 Means the same thing as 3½ digits. DC Volts: 200mV Lowest DC voltage setting is 200 ...
CHAPTER 4 ■ DIGITAL MULTIMETER Figure 4-17. Moderately-priced digital multimeter There are some features that I’d miss if I had ...
CHAPTER 4 ■ DIGITAL MULTIMETER 3¾ Digit This meter can display numbers up to 3999. Large display and units Easier to read, parti ...
CHAPTER 4 ■ DIGITAL MULTIMETER 40,000 count display The display has five digits, which is quite a lot. The high number of digits ...
CHAPTER 4 ■ DIGITAL MULTIMETER Optical USB data output This meter has a USB cable, unlike older multimeters that require a PC wi ...
CHAPTER 4 ■ DIGITAL MULTIMETER Examining Other Meters Visit http://www.robotroom.com/Multimeter-Reviews.html to see descriptions ...
CHAPTER 5 ■ Chapter 5: Numbers and Units Here is the last building block before you’re introduced to the line-following robot. T ...
CHAPTER 5 ■ NUMBERS AND UNITS To avoid errors, the number of digits in long numbers is usually reduced in a standardized way. Re ...
CHAPTER 5 ■ NUMBERS AND UNITS A larger multiplier can be used, in which case the original number slides below the decimal point: ...
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