130-28176 Parallax Inc, 130-28176 Datasheet - Page 134
![KIT PARTS PROCESS CONTROL](/photos/8/99/89975/mfg_130-28176_sml.jpg)
130-28176
Manufacturer Part Number
130-28176
Description
KIT PARTS PROCESS CONTROL
Manufacturer
Parallax Inc
Specifications of 130-28176
Accessory Type
Education Kit
Product
Microcontroller Accessories
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
Board of Education Full Kit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
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Page 124 · Process Control
Figure 4-22 Fan RPM Plot with Varying Sample Durations
One way to increase the resolution without having to sample longer is to increase the
number of counts per revolution. Using an encoder wheel with two light/dark pairs will
double the number of counts and increase the resolution.
Compare the earlier waveform in Figure 4-21 using the 1 cycle/revolution encoder to
Figure 4-23 using the 8 cycles/revolution. As the number of encoder patterns increases,
more counts occur during the same time period.
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