Comparator
Reference
Heater
Room
value To
Error
signal
Room
temperatur
(T.-)
Ta
E
Temperature measuring
device
h
Figure 1: A closed loop control system
pour in room temperature or cold water. cover the pitcher and refrigerate. steep white or green tea for 6 to 8 hours; steep black or oolong tea for 8 to 12 hours.jun 28, 2015
15. one purpose of the tread pattern on a tire is to a reduce tire wear. b. reduce traction c. allow water to flow away from the tire. d. look impressive.