Revision as of 19:45, 20 February 2014

Our final presentation in the hackathon: here

LaunchPadSignalGenerator - using the TI Tiva evaluation board (Cortex M4) to generate a signal, how to setup the gcc stack. (didn't try code studio).

Ultrasound sensor physics and construction

Videos

https://www.youtube.com/watch?v=arNAMxCgVKs - hour long lecture on piezoelectric cells
https://www.youtube.com/watch?v=rpmtztt5W08 - making of a piezoelectric cell from barium titanate.
cellphone (windows mobile) used with a usb ultrasound probe http://www.youtube.com/watch?v=kjm9nQ5_bUk

Notes from the IATI MNC weekathon wearable bladder monitoring device weekathon

Project outline:
- Ultrasound sensor
  - how to build?
  - where to buy a crystal? what size? how does it relate to the driving frequency? receive/
Use 6 MHz
Get raspberry pi working
Get gpio 6 MHz on the pi
Opamp @Tami to get to 5V at least from pi using a breadboard / weld stuff
- 3M from Nachum.
- TODO 5 V at entrance with op amp
- TODO 6 MHz, not 3 MHz
TODO take with me from the hacker space per what Aba said:
- soldering station (take mine)
- make some easy hook wires
- tomorrow: check that the p6d works
TODO can I make an ADC from one of the chips we have?
DONE can I make a pulse generator from the EK-TM4C123GXL? yes.
DONE can I use the oscilloscope of Guy to record the signal? no.
Getting ge p6d probe to work
- about it
  - http://www.providianmedical.com/ultrasound-probes/ge/ge-p6d/
- pulse generator
  - low part count, 20 Hz - 13 KHz but variable with C1. http://www.maximintegrated.com/app-notes/index.mvp/id/1960
- a2d
  - 10 Million samples per second (10 MSPS)
- mixer
ultrasound general electronics documentation:
- not really interesting
  - http://www.ti.com/solution/ultrasound_system TI application note about beam forming UT.
  - http://www.bioee.ee.columbia.edu/courses/upload/Bibliography/kim_ultrasonic_2006.pdf - 250 MS/s IC paper.
DONE Meeting with Ronen's coworker at GE
- Etgar 4 Tirat Hacarmel, 49/45/47; take train at 8:25 from

Prep day notes

@@ Line 7: / Line 7: @@
 * https://www.youtube.com/watch?v=arNAMxCgVKs - hour long lecture on piezoelectric cells
 * https://www.youtube.com/watch?v=rpmtztt5W08 - making of a piezoelectric cell from barium titanate.
+* cellphone (windows mobile) used with a usb ultrasound probe http://www.youtube.com/watch?v=kjm9nQ5_bUk
 = Weekathon notes =