This page collects all the blog posts for the development of my Applied Circuits for Bioengineers course. The material distributed to the students in the course for the first offering of the course is on my University web pages:
http://users.soe.ucsc.edu/~karplus/bme194/w13/
Because WordPress.com has an irrational prejudice against allowing oldest-first ordering of anything (or incompetent database programmers, which seems less likely), I’ve had to hand-create a table of contents for my posts about the Circuits Course. I would really love for them to have automatically generated “Table of Contents” summary pages for each category, giving the links to the posts and (optionally) the tags associated with the post. Until they realize that not every reader and writer of blogs sees posts as being primarily valued by how recent they are, I’ll have to make do with this hand-generated table of contents (and remember to edit it every time I have a new post!):
- Changing teaching plans
- More on electronics course design
- Yet another project idea
- More musings on circuits course: temperature lab
- Buying parts for circuits course
- Oscilloscope practice lab
- Speakers and function generator
- Temperature lab, part2
- Temperature lab, part 3: voltage divider
- Op-amp lab
- Why teach circuits to bioengineers?
- What sensors for circuits class?
- Instrumentation amp lab
- Instrumentation amp, try 2
- Building a function generator kit
- Capacitive sensing
- Capacitive sensing, part 2
- Capacitive sensing with op amps
- Capacitive sensing with op amps, continued
- Phototransistor
- Synchronous demodulator
- EMG and EKG works
- Two-stage EKG
- EKG recording working
- Pulse detection with light
- Giving up on light-based pulse sensor
- More thoughts on EKG
- Looking at bioengineering measurements courses
- Cockroach electronics?
- Random thoughts on circuits labs
- EKG blinky
- Instrumentation amp protoboard
- Instrumentation amp protoboard rev2.1
- Trying to measure ionic current through small holes
- Medical Instrumentation, first 5 chapters
- Accelerometer for circuits course?
- Medical Instrumentation, chapter 6
- Conductivity of saline solution
- On stainless steel
- EKG blinky boards arrived
- More free textbooks
- Better measurement of conductivity of saline solution
- Measuring Ag/AgCl electrodes
- Order and topics for labs
This post is a good one to start with, as it outlines the labs I’ve developed so far in the order we’ll probably do them and provides pointers to other posts about each lab. There are no pointers to later posts, of course. - EKG blinky boards work
- EKG blinky parts list and assembly instructions (Page, not Post)
- Instrumentation amp prototyping boards arrived
- Medical Instrumentation, Chapters 7 and 8
- Medical Instrumentation, Chapters 9–14
- Better electrode placement for EKG blinky
- Possible textbook, Horowitz and Hill
- EMG video
- All about circuits, a possible supplemental text
- Pressure sensing lab possibilities
- Wikipedia books, another approach for a free/cheap textbook
- PC board for pressure sensor
- Making Ag/AgCl electrodes
- Course approval forms
- Supplemental sheet for lab, draft 1 This post is obsolete, see draft 2 below.
- Supplemental sheet for lecture, draft 1
- Characterizing tactile transducer
- Characterizing tactile transducer again
- Bad news for circuits course
- Good news for circuits course
- New amplifier and shaker table
- Supplemental sheets, draft 2 This post provides an updated overview of the course, but no links to other posts.
- Filing the paperwork
- SBG and partner work in circuits class
- Circuits course as flipped Bloom’s
- Good and bad news for circuit course
- Pressure sensor assembly
- Pressure sensor miswired
- A way forward for circuit course
- Pressure sensor noise problems
- Rethinking the pressure sensor lab
- Thinking about PC boards and parts kits for circuits lab
- New PC board design for pressure sensor
- A different way forward for circuit course
- Notes for things to do on circuits course
- Capacitive sensing with Schmitt trigger
- Hysteresis lab
- Parts list for Applied Circuits W13, draft 1 (Page, not Post)
- New holder design for Ag/AgCl electrodes
- Holder for Ag/AgCl electrodes
- Updated things to do on circuits course
- Pressure sensor boards arrived
- Hysteresis board
- Small enrollment in circuits course
- Parts orders for Applied Circuits W13 (Page, not Post)
- Tested Python and Arduino installation
- Trying the oscilloscope practice lab
- FET threshold tests with Bitscope
- Disappointing power-amp lab
- Three lab handout drafts done
- Mic modeling lab too complicated
- Tools and parts list for Applied Circuits W13 (Page, not Post) This page has the packing list (and prices) for the student tools-and-parts kit. It looks like the kits will be $65 for Winter 2013.
- Parts packed, pressure sensors assembled, more thoughts on power amp
- Mic modeling lab rethought
- Data logging software for circuits course working
- FET modeling lab looking complicated
- Class D instead of class AB
- Class D works
- Parts and tools packaged today
- Updating to-do list
- More mess in the FET modeling lab
- Negative resistance oscillator
- First day of circuits class went ok
- More stuff bought for the circuits class
- Second day of circuits class
- First lab was too long
- Third day of circuits class
- Fourth day of circuits class
- Weekend work
- Fifth day of circuits class
- Second lab was smoother than the first
- Sixth day of circuits class
- Doing the hysteresis lab without a scope
- Seventh day of circuits class
- Electrode lab went well
- Eighth day of circuits class
- Virtual Community of Practice for circuits
- Ninth day of circuits class
- Teaching engineering thinking
- Formal reasoning in intro physics
- Tenth day of circuits class
- First soldering lab went fairly well
- Eleventh day of circuits course
- Idea for phototransistor/FET lab
- Conjecture about gnuplot difficulties for students
- Quiz too long and too hard
- Positive moments
- Thirteenth day of circuit class and first op-amp lab
- Fourteenth day of circuits class
- Becoming engineers
- RC time constant lab
- Fifteenth day of circuits class
- Descaffolding
- Sixteenth day of circuits class
- Tinkering lab
- Seventeenth day of circuits class: inductors and gnuplot tutorial
- Teaching students to build and use models
- All weekend and handouts still not written
- Pressure-sensor lab handout written
- Eighteenth day of circuits class
- Sampling lab went ok
- Nineteenth day of circuits class
- Class D with LC filter works
- Tinkering lab reports show problems
- Twentieth day of circuits class
- Better model for loudspeaker
- Twenty-first day of circuits class
- Pressure-sensor lab went well
- Rethinking the power-amp lab again
- Rethinking the power-amp lab yet again
- Quiz 2, better than quiz 1
- Twenty-second day of circuits class (actually 23rd, I forgot to count the quiz day)
- Twenty-third day of circuits class (actually 24th)
- Class-D power amp lab went smoothly
- Twenty-fifth day of circuits class
- Twenty-sixth day of circuits class
- Exploding electrolytic capacitors
- Tried EKG design on protoboard
- Action potential lecture and EKG lab
- Twenty-eighth day of circuits class
- Last day of circuits class
- Bar exam for circuits class
- Student writing
- Triangle-wave oscillator
- Self-taught teacher
- Supplemental sheets, draft 3
- Showing is better than telling, but not by much
I should probably annotate every listing above with a sentence or two about what is in the post, as well as collecting posts into separate thematic groups below.


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