Assignment Task: Instrumentation and Measurement
Zero-Span Circuits / Sensors' interface to Arduino
Objectives:
i) Simulate a zero-span circuit
ii) Simulate its Interfacing with Arduino
iii) Design a suitable Printed Circuit Board
Equipment Required
i) Multisim/Partsim
ii) Virtual BreadBoard/Tinker CAD
iii) DipTrace/Altium (or any PCB software of your choice)
1. Introduction
- Review your notes on the purpose and design of zero-span circuits. For this lab the sensor input will be simulated using a sine wave (or saw tooth) (set a slow frequency i.e.10 Hz) of appropriate
- Design a zero-span circuit to interface our sensor with the Arduino:
Input range Output Range
Circuit: +300*[X] mV to -100*[Y] mV 0 V to +5 V
To remove any ambiguity, please refer to the following correspondence between letters and numbers:
|
A
|
B
|
C
|
D
|
E
|
F
|
G
|
H
|
I
|
J
|
K
|
L
|
M
|
N
|
O
|
P
|
Q
|
R
|
S
|
T
|
U
|
V
|
W
|
X
|
Y
|
Z
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
Once that your output voltage is verified using the simulator within the Arduino range (10% tolerance is allowed) (0 V to +5 V), using Virtual BreadBoard you can virtually assembly your circuit and connect the Output of your circuit to the Analogue input 0 and possibly execute the acquisition script detailed at tutorial. Please note that sample rate of the acquisition script must be adjusted according to the signal frequency used, do not cause Aliasing.- Design the PCB, you may want to include on the PCB the proper anti-Aliasing filter
- For your design you must use LM741 as operational amplifier and commercial values for passive components (see manufacturers' and suppliers' websites like Element14, Digikey etc, if you are in doubt which values to use).
2. Experiment and Lab Report
Work is individual, please use the supplied template. Tutors will demo to you a fully functional circuit using Zoom or other video-conferencing tools. Source files like schematics and Arduino program must be made available and attached to the report (zip file) at submission. This assignment will be marked according to the following marking criteria:
1. Correct use of the template i.e. figures have proper captions etc...
2. Simulation of analogue circuit fully functioning and properly explained
3. Virtual breadboard/Tinker CAD and no aliasing in acquisition script
4. PCB design
Get in touch with the professionals of Instrumentation and Measurement Assignment Help service for securing better academic grades, without putting so much effort.
Tags: Instrumentation and Measurement Assignment Help, Instrumentation and Measurement Homework Help, Instrumentation and Measurement Coursework, Instrumentation and Measurement Solved Assignments
Attachment:- Instrumentation and Measurement.rar