The team proposed design requirements which were reviewed by peers and advisors in a presentation. These were modified based on the feedback provided.
Realistic constraints were determined for the project and the team met with Mr. Zanetti for utilizing Machine Shop resources
October
The team identified relevant standards for our project: and developed a Gantt chart with a timeline for task completion.
The team finalized a preliminary budget for ordering parts including: Electronics, Materials, Miscellaneous Supplies, Parts.
The team is working on developing 3 designs for the project. These designs will be reviewed by peers and advisors in a presentation.
Decision matrices are being drafted for differing design aspects such as microcontrollers, flow sensors, and overall design.
November
The team presented their interim design presentation and received feedback on their three designs as well as decision matrices.
From the feedback received at the presentation, the team decided on a design (Design 1) to proceed with a SolidWorks model.
The team purchased a flow sensor for preliminary testing purposes and design considerations.
Final semester report outlined with necessary deliverables
Final presentation started with feedback received interim design presentation and project updates: verification
December
Allen submitted purchase request forms for the Arduino Nano RP2040 and coordinated to obtain Molex DuraClik connectors for future flow calibrations
Nick developed verification activities for the requirements and updated the requirements based on previous feedback
Nikhil designed and prototyped the shell and hardware housing for the device, as well as designed the splitter
Sebastian performed computational fluid dynamics (CFD) simulations to measure the velocity and pressure profiles of the air splitter and the sensors
The team presented their final design presentation and received feedback on their requirements, verification activities, decision matrices, design and computational fluid dynamics
The team completed a preliminary report draft with the necessary deliverables for review
January
Allen purchased DuraClik connectors for future flow calibrations and coordinated with engineering technician Brian Wittreich to 3D-print a test model of the air splitter
The Arduino Nano, DuraClik connectors and a flow meter were received/provided for sensor calibration
The team submitted a Senior Design Project abstract for the Northeast Bioengineering Conference (NEBEC)
Nick and Nikhil developed a verification protocol for the calibration of airflow range and accuracy
Nikhil and Allen are in the process of designing a tabletop holder for the device and updating the Solidworks for 3D-printing
Sebastian and Nick are in the process of calibrating the flow sensors for use in the device
February
Allen issued purchase orders for a new air flow sensor to replace the previously malfunctioning part, as well as for 3D-printing materials
Nikhil and Allen made revisions on the upper and lower clamp shells for the air flow splitter which were printed in the prototype
The team developed a calibration protocol for the sensors, with parts in progress to conduct testing with
Sebastian and Nick troubleshooted reporting frequency of the flow sensor in Arduino IDE
March
The team presented their progress at the Student Design Demo to faculty members
The team assembled an initial prototype with all outer shell components
Verification testing on the sensors to show accuracy was performed at various flow rates; the data can be found under the “Design” tab
Coding for calculating FEV1 and FVC from the flow sensors was created
A poster was created for the Northeast Bioengineering Conference (NEBEC) and Celebration of Student Achievement (COSA)
April
The team presented their project at the Northeast Bioengineering Conference (NEBEC)
A microSD card reader was purchased to allow for data transfer from the device; coding ensues to get the data to be printed to .txt files in chronological order
A custom PCB is being developed to allow for the Arduino and electrical components to be reduced in size
A new handle of the device was created because of the change to AA batteries; the handle was sent to be 3D printed
The team demonstrated use of their completed project at the design showcase to the faculty
Verification and validation testing were completed on all requirements and specifications
A complete design of the code was created and tested
The team presented their project at the Celebration of Student Achievement (COSA)
