A sensor will be used to monitor temperature in a manufacturing process. The expected
temperature, a function of time, is T(t) = 115 + 12sin2t EC. The sensor is assumed to
have first-order behavior with a static sensitivity of 5mv per EC
ENGR-325 HW #1
There is a heating element in a piece of equipment that you are using and you wish to
determine the power being dissipated by the heating element. The heating element can be
assumed to be a simple resistance. Assume that you have measuri
ENGR-325 Homework # 3
Due Wednesday 1/29/13
Assume that you are setting up a measurement system to measure temperature over the
range 0 to 100EF with a sensor that outputs a current between 4 and 20 ma proportional to
temperature where 4ma = 0EF and 20
Notes on lab 5 - thermistor time constant determination
In this lab a thermistor was subjected to a step change in temperature from room temperature to
about 0EC in an ice bath. A constant current was applied to the thermistor and the voltage
ENGR-325 Hw #1
Show how op amps can be used to create an amplifier with a gain of +100 and an input
impedance of 2.5 Kohms.
a) show how this can be done with a non-inverting configuration.
b) show how this can be done with an inverting configuration.
An RTD (temperature sensor) has a first order temperature coefficient of 0.004/degree C
at 20EC. If its resistance is 106 ohms at 20EC what is its resistance at 25EC?
If the RTD in problem 1 is used in a bridge circuit as shown b
ENGR-325 Lab 1 Report
Your name _
This is a short report to convey key results from this lab. Full documentation is assumed to
reside in your lab book. (you can turn these questions in on engineering paper or this form).
From part 1 of the lab
HW # 6
As defined in class, create a ladder diagram for a controller that will keep the water level between
Level 1 and Level 2 (see the figure below) once the controller is turned on. See the reading that
is posted regarding ladder diagrams.
Notes regarding the midterm exam
The midterm exam will be closed book, no on-line references, and no notes except one sheet of
8.5x11" paper on which you, personally, with pen or pencil have written by hand the notes you
wish to have during the e
Crimes Against Humanity
If nifty little pep gestures like the Indian Chant and the Tomahawk Chop
are just good clean fun, then lets spread the fun around, shall we?
URING THE PAST COUPLE of seasons, there has been an
increasing wave of