electromagnetic soil moisture sensor(esms) · electromagnetic soil moisture sensor(esms)...
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![Page 1: Electromagnetic Soil Moisture Sensor(ESMS) · Electromagnetic Soil Moisture Sensor(ESMS) Comprehensive Design Review (CDR) Department of Electrical and Computer Engineering 2 Meet](https://reader030.vdocuments.mx/reader030/viewer/2022040407/5eaa8445ea59ac6de361ecdf/html5/thumbnails/1.jpg)
1Department of Electrical and Computer EngineeringDepartment of Electrical and Computer Engineering
Senior Design Project Team 21March 7, 2017
Electromagnetic Soil Moisture Sensor (ESMS)
Comprehensive Design Review (CDR)
![Page 2: Electromagnetic Soil Moisture Sensor(ESMS) · Electromagnetic Soil Moisture Sensor(ESMS) Comprehensive Design Review (CDR) Department of Electrical and Computer Engineering 2 Meet](https://reader030.vdocuments.mx/reader030/viewer/2022040407/5eaa8445ea59ac6de361ecdf/html5/thumbnails/2.jpg)
2Department of Electrical and Computer Engineering
Meet the Team
Academic Advisor: Professor Stephen Frasier
Mohamed A. Mohamed EE
Nicholas KeithEE
Erik SpragueEE
Kyle RichardEE
![Page 3: Electromagnetic Soil Moisture Sensor(ESMS) · Electromagnetic Soil Moisture Sensor(ESMS) Comprehensive Design Review (CDR) Department of Electrical and Computer Engineering 2 Meet](https://reader030.vdocuments.mx/reader030/viewer/2022040407/5eaa8445ea59ac6de361ecdf/html5/thumbnails/3.jpg)
3Department of Electrical and Computer Engineering
Overview of the System (Block diagram)
![Page 4: Electromagnetic Soil Moisture Sensor(ESMS) · Electromagnetic Soil Moisture Sensor(ESMS) Comprehensive Design Review (CDR) Department of Electrical and Computer Engineering 2 Meet](https://reader030.vdocuments.mx/reader030/viewer/2022040407/5eaa8445ea59ac6de361ecdf/html5/thumbnails/4.jpg)
4Department of Electrical and Computer Engineering
CDR Deliverables ▪ Power Board Design ▪ Reference sources functioning▪ Data Processing ▪ GPS Location
![Page 5: Electromagnetic Soil Moisture Sensor(ESMS) · Electromagnetic Soil Moisture Sensor(ESMS) Comprehensive Design Review (CDR) Department of Electrical and Computer Engineering 2 Meet](https://reader030.vdocuments.mx/reader030/viewer/2022040407/5eaa8445ea59ac6de361ecdf/html5/thumbnails/5.jpg)
5Department of Electrical and Computer Engineering
Power Board Design ▪ 11.1V source▪ Provides 15V
(LT1171) and 5V (LM2679) supplies for the receiver elements and Arduino.▪ 2 Layer PCB
![Page 6: Electromagnetic Soil Moisture Sensor(ESMS) · Electromagnetic Soil Moisture Sensor(ESMS) Comprehensive Design Review (CDR) Department of Electrical and Computer Engineering 2 Meet](https://reader030.vdocuments.mx/reader030/viewer/2022040407/5eaa8445ea59ac6de361ecdf/html5/thumbnails/6.jpg)
6Department of Electrical and Computer Engineering
Reference Sources ▪ Ambient source: Matched Load
• TMP36 temperature sensor Provides ambient temperature
▪ “Hot” Source: NoiseComm NC302• Measured ENR to be 18.55 dB• Appears 71.6x hotter than ambient
![Page 7: Electromagnetic Soil Moisture Sensor(ESMS) · Electromagnetic Soil Moisture Sensor(ESMS) Comprehensive Design Review (CDR) Department of Electrical and Computer Engineering 2 Meet](https://reader030.vdocuments.mx/reader030/viewer/2022040407/5eaa8445ea59ac6de361ecdf/html5/thumbnails/7.jpg)
7Department of Electrical and Computer Engineering
Data Processing ▪ SD card stores all receiver data for future processing
▪ MATLAB: Linear interpolation to find antenna temperature
![Page 8: Electromagnetic Soil Moisture Sensor(ESMS) · Electromagnetic Soil Moisture Sensor(ESMS) Comprehensive Design Review (CDR) Department of Electrical and Computer Engineering 2 Meet](https://reader030.vdocuments.mx/reader030/viewer/2022040407/5eaa8445ea59ac6de361ecdf/html5/thumbnails/8.jpg)
8Department of Electrical and Computer Engineering
GPS Data▪ GPS data sampled at 10
Hz and data was processed and plotted on MATLAB ▪ Coordinates printed out
every 2 seconds.
![Page 9: Electromagnetic Soil Moisture Sensor(ESMS) · Electromagnetic Soil Moisture Sensor(ESMS) Comprehensive Design Review (CDR) Department of Electrical and Computer Engineering 2 Meet](https://reader030.vdocuments.mx/reader030/viewer/2022040407/5eaa8445ea59ac6de361ecdf/html5/thumbnails/9.jpg)
9Department of Electrical and Computer Engineering
Receiver Circuit▪ Low Noise Amplifier ▪ JCA12-3155
• Gain = 36 dB• Noise Figure = 2.249 dB
▪ Power Amplifier▪ ZFL-2500-1
• Gain = 28.1 dB• Noise Figure = 8.12 dB
𝐹 = 𝐹# + 𝐹& − 1𝐺#
+𝐹* − 1𝐺# ∗ 𝐺&
LNA, PA, LPF Cascade have a total noise figure of 2.253 dB
![Page 10: Electromagnetic Soil Moisture Sensor(ESMS) · Electromagnetic Soil Moisture Sensor(ESMS) Comprehensive Design Review (CDR) Department of Electrical and Computer Engineering 2 Meet](https://reader030.vdocuments.mx/reader030/viewer/2022040407/5eaa8445ea59ac6de361ecdf/html5/thumbnails/10.jpg)
10Department of Electrical and Computer Engineering
Power Combiner▪ ZC4PD-18-S+ 4 way power
combiner▪ Adds power from each antenna
patch in phase▪ ~0.4 dB insertion loss
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11Department of Electrical and Computer Engineering
Arduino and Onboard Control▪ GPS added▪ Arduino controls the
switch and all Data being received for later use.
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12Department of Electrical and Computer Engineering
FPR Deliverables▪ Antenna pattern ▪ User interface ▪ Test cases▪ Demonstrable product▪ Soil moisture map
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13Department of Electrical and Computer Engineering
Demo
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14Department of Electrical and Computer Engineering
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15Department of Electrical and Computer Engineering
Questions, Comments, Suggestions?