Homework #24
You are using an RTD with the calibration curve:
T = 50 + 3 R
where R is the resistance (in ohm) and T is temperature (in K) is You are reading the voltage of
the RTD using a 4wire configuration with a 12 bit data acquisition system that has
ME 368, Measurement Systems Laboratory
Homework #21
Figure 1 illustrates a simple dynamic system consisting of a capacitor (C) and resistor (R).
resistor, R
Vout
Vin
capacitor, C
Figure 1: Resistorcapacitor system.
a.) Derive the governing differential e
ME 368, Measurement Systems Laboratory
Homework #20
The resistance of a number of materials depends on temperature. Therefore various types of
resistors can be used as temperature sensors. The temperature dependence of these resistors
often varies drastic
ME 368, Measurement Systems Laboratory
Homework #19
You are trying to measure the mechanical power ( W ) associated with a rotating shaft; the
accuracy of this power measurement needs to be 5% of the nominal power. You expect that the
rotational speed of
ME 368, Measurement Systems Laboratory
Homework #18
A water chilling refrigeration system is driven by a diesel engine. You have been asked to
estimate the coefficient of performance of the system.
Water enters the system with volumetric flow rate V at te
ME 368, Measurement Systems Laboratory
Homework #11
Use the function generator in Elvis to output a 1 Volt (peaktopeak) sine wave with a frequency
of 100 Hz. Write a vi that does the following:
1. reads a set of data corresponding to one cycle of the si
ME 368, Measurement Systems Laboratory
Homework #10
Write a vi called Spreadsheet Read that reads and displays the data from a twocolumn,
spreadsheetformatted file (such as the one created by the vi that was built in lecture). The vi
should open the fil
ME 368, Measurement Systems Laboratory
Homework #7
Write a vi called moving average.vi that collects voltage data using your myDAQ device. The
voltage should be collected from the 5V output port on the device. The vi should use the DAQ
Assistant to sample
ME 368, Measurement Systems Laboratory
Homework #6
1. A strobotachometer (i.e., a strobe light) is a device that puts out a very brief (a few
microseconds) but intense flash of light at a repetition rate controlled by a dial. If a shaft has
a single mark
Name _Solution Key_Section # _Section Time/Day _
ME 368, Measurement Systems Laboratory
Homework #1
1. The diameter of a copper cylinder is 1.24 inch and its length is 5.324 inch. The density of
copper is 8944 kg/m3. Determine the mass of the copper cylin
Practical Exam, Version 3
LabView Portion
Your lab instructor will provide you with two tabdelimited spreadsheet text files (entitled Test
Voltage 1.txt and Test Voltage 2.txt) each containing 10 data points. The files are formated in
two columns  the f
Practical Exam, Version 2
LabView Portion
Consider two time varying voltage signals. Signal 1 is a sine wave with amplitude A = 1 V and
frequency f = 100 Hz:
V1 = A sin ( 2 f t )
where t is time. Signal 2 is also a sine wave with amplitude A = 1 V and fre
Practical Exam, Version 1
Your instructor will give you three tabdelimited spreadsheet text files (entitled Data file 1.txt,
Data file 2.txt, and Data file 3.txt) each containing 100 data points. The sampling frequency
used to generate each data file is
ME 368, Measurement Systems Laboratory
Lecture Exercise #13
Write a VI that can obtain a specified number of measurements of the temperature in the room
using the Type T thermocouple that came with your kit. Your thermocouple should be wired
with the red
ME 368, Measurement Systems Laboratory
Lecture Exercise #17
Previously you used the Digital Multimeter (DMM) from the ELVIS control panel to measure
the resistance of the 12 unique resistors that each have a nominal resistance of 1.0 M. Your
95% confidenc
Lecture Exercise #23
Given the thermocouple measurement setup shown in the figure, what is the temperature of the
object?
voltmeter
copper
thermocouple junction
+
5.231 mV
copper
Object

constantan
water at 34C
The measured voltage (Vmeasured) is the dif
Homework #25
An elastic pressure transducer based on a bellows arrangement is shown below. The bellows
expands under the influence of pressure and this expansion causes a rod to move inside of a
linear variable displacement transducer (LVDT) which convert
ME 368, Measurement Systems Laboratory
Homework #22
Figure 1 illustrates a simple dynamic system consisting of a capacitor (C) and resistor (R).
resistor, R
Vin
Vout
capacitor, C
Figure 1: Resistorcapacitor system.
In homework #21 you derived the governi