130-28176 Parallax Inc, 130-28176 Datasheet - Page 229

• 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

SOLUTIONS TO CHAPTER 6 CHALLENGES
Challenge 6-1 Solution
Part A:
The values of 1 τ and 5 τ should not have varied by very much. The time constant is the
same for any step change in temperature.
Part B:
Challenge 6-2 Solution
1. The plot should have risen quickly then slower its rise as time went on. Just as
2. If the sensor was dry with nothing around it, the time constants should have been
1. For a range of 50 to 90 °F, an offset of 0.5 V (50 °F) and a span of 0.4 V
2. Resolution: 40 °F/255 = .156
3. Your graph may look like this:
4. y = mx + b = (40/255)x + 50 = 0.156(Byte Value) + 50 (Not in BASIC Stamp
in cooling to room temperature there is a rapid heat transfer initially. As the
temperatures come closer to one another, the transfer slows.
close to previous results for cooling. If there was plastic and or/water around it,
the time constants may have slightly longer due to increased mass.
(0.9 − 0.5).
compatible format.)