Embedded Files
Final Product
Full Assembly
Open Assembly
Heat Block in Drawer
Heat Block
Drawer
SolidWorks Render of Drawer
Labeled Drawer Components
Heat Block
CAD of Thermo Fisher vial on Heat Block Element
Heat Block Element Split Up into Components
Manufacturing Process in Fusion 360
Heat Block Cylinder Fabricated from CNC & Wire EDM
Initial Drawings of Heat Block & Initial Plans for Prototypes
Electronics
High Level, Simplified Electronic Block Diagram
Electronic Block Diagram
Circuit Architecture
Peltier Electrical Branch with the LM317 creating a constant current and a N-channel MOSFET (controlled by the Arduino) controlling the on/off state of the branch
RTD Op-Amp Circuit
Voltage Reference Circuit
Voltage Inverter Circuit
RC Low-Pass Filter
Arduino Nano Board
Seeeduino Xiao Board
SolidWorks Simulations vs Experimental Data
of Heating and Cooling Elements
Resistive Heating (3W)
20 °C → 95 °C
40 seconds
1.875 °C/sec
Convective Cooling (300W/m^2K)
95 °C → 25 °C
40 seconds
1.75 °C/sec
Peltier Cooling (2W)
25 °C → 4 °C
80 seconds
0.2625 °C/sec
Experimental Data of Components
Determining Temperature Output by Current Input of Peltier Module
Determining the Offset Between the RTD and the Actual Temperature of the Vial Using a Thermal Couple
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