130-28176 Parallax Inc, 130-28176 Datasheet - Page 100
![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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Based on the value that provides the best response, which resistor would you use for a
digital switch? Figure 4-6 shows the results of our test with the 100 kΩ value. Note as
the distance is reduced (X-axis), the voltage at R
point, there is insufficient angle for reflection and voltage rises once again.
Challenge 4-1: Determining Distances with Different Materials
Figure 4-6 Opto-Reflector Response with 100 kΩ RC
√
Using the 1 MΩ R
surface finishes. At what distance from the opto-reflective switch is a voltage of
1.5 V reached? Complete Table 4-1. Be sure to include the test reflector (white
paper) used in this activity as a reference.
C
value, test at least 5 surfaces, including different colors and
C
decreases (Y-Axis). But after a certain
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