Week 3

Guidelines for Report

Overview of Status of Analysis, Design, Fabrication, Tests, etc.

• • Decided to make the comparator circuit in LABVIEW. In progress of writing the program (Brian)

  • Pump analysis:

    • amount of water the system will be dealing with <0.1mL at a time

    • concluded need a pump with flow rate <1mL/min

    • Pressure: need not to consider.

    • conclusion: focus on cost and flow rate of the pump

  • Overflow Sensor:

    • conceptual test was done

    • see the report on the website for details (water detector)

    • in progress of controlling through LABVIEW

Accomplishments from Previous Week

• • Testing the concept of the overflow sensor

  • Pump decided: (Williamson's OEM peristaltic Pump 100 series DC powered motor).

  • Created the overflow system on the LABVIEW

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• • Acquire Equipments from the sponsor (Brian, Nobuto)

    • set up a meeting date to learn the software

    • install software on the UCSD computer

  • Purchase the pump (Tomo)

  • Complete Overflow sensor test (Shom)

    • turning on LED light through overflow sensor to check LABVIEW can distinguish the voltage change

  • Conceptual design for the control loop for the water application system (Brian)

  • Complete comparator circuit on LABVIEW (Shom, Brian)

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments

• • There was no meeting this week because he had jury duty

  • through email:

    • Use # 7 or 8 RTD sensor for the comparator circuit

      • #5~8 RTD sensor are located at the middle of the heater in the DUT. These location will be close to the temperature of the heater/DUT

    • Create a linear fit using the data acquired from the sponsor and create a comparator circuit

    • Equipment is almost ready. would like to set up a meeting for the tutorial

Instructor Comments from Last Meeting and Actions Taken to Address these Comments

• • pump: possibly just acquire those cheap pumps. 10~20 is not much a loss

  • LABVIEW Control Loop

    • need description on what control loop is presented

  • focus more on overflow detection. This should be the main emphasis

    • this will be more gain for the sponsor

    • possibly optical detection on overflow?

    • possibly create an attachment type sensor on the TU?

    • possibly usage of insulator and conductor to detect water

Risks and Areas of Concern

• • Locations to put the overflow sensor

  • number of sensors needed

Resources or Information Required but not Available

Schedule

Describe upcoming milestone:

• • Start building the water application system

  • start creatingLABVIEW softwares

    • Comparator circuit

    • Overflow sensor

    • Control loop

  • Acquire all needed materials from sponsor

  • Purchase materials

    • pump

    • needle

    • connector

    • tubes

Update Gantt chart:

• • see Gantt Chart

Budget (list amount spent and amount remaining)

• • Spent: $0

  • Remaining: $1500

Progress on Report and Webpage

Report:

Webpage:

• • updated new gantt chart

  • optimized on email/team section

  • editing general view of the website