| *--------------------------------------------------* | *--------------------------------------------------* | ||||
| | | | | | | ||||
| | | ' | | | |||||
| | Pull Down Resistor | ' | | | |||||
| *------------/\/\/\-------------* |' '| | | *------------/\/\/\-------------* |' '| | | ||||
| | 47K | _|_'_|_ | | | 47K | _|_'_|_ | | ||||
| | | |` ` ` `| | | | | |` ` ` `| | | ||||
| TEENSY 3.1 | | | | ` ` ` | | | TEENSY 3.1 | | | | ` ` ` | | | ||||
| _______________ *-/\/\/\-* | |` ` ` `| | | _______________ *-/\/\/\-* | |` ` ` `| | | ||||
| |GND |_____| Vin| | 2.2K | | | ` ` ` | | | |GND |_____| Vin| | 2.2K | | | ` ` ` | | | ||||
| |0 ---- AGND|<-* | | |` ` ` `| | | |||||
| |1 |````| 3.3V|>--/\/\/\--*--/\/\/\---* | | ` ` ` | | | |||||
| |2 |````| 23| 10K 47K | | |` ` ` `| | | |||||
| |3 ---- 22| | | | ` ` ` | | | |||||
| |0 ----- AGND|<-* | | |` ` ` `| | | |||||
| |1 |`````| 3.3V|>--/\/\/\--*--/\/\/\---* | | ` ` ` | | | |||||
| |2 | | 23| 10K 47K | | |` ` ` `| | | |||||
| |3 ----- 22| | | | ` ` ` | | | |||||
| |4 |'| 21| | | \=====/ | | |4 |'| 21| | | \=====/ | | ||||
| |5 ------ 20| | | | :`| | | |5 ------ 20| | | | :`| | | ||||
| |6 |::::::| 19| | REMOVE | | S`| | | |||||
| |7 |::::::| 18| | DC | | H`| | | |||||
| |8 |::::::| 17| | BIAS | | I`| | | |||||
| |6 |::::::::| 19| | REMOVE | | S`| | | |||||
| |7 |::::::::| 18| | DC | | H`| | | |||||
| |8 |::::::::| 17| | BIAS | | I`| | | |||||
| |9 ------A2/16|<---SIGNAL-1.2v-BIAS---*---+|(----* | E`|>--ANGD--* | |9 ------A2/16|<---SIGNAL-1.2v-BIAS---*---+|(----* | E`|>--ANGD--* | ||||
| |10 --- 15| 1.2VDC 10uF | | L`| | |10 --- 15| 1.2VDC 10uF | | L`| | ||||
| |11 |(`)| 14| | | D`| | |11 |(`)| 14| | | D`| | ||||
| <ol> | <ol> | ||||
| <li><b>Difference Function -</b> Squared difference of the (signal - signal lag(<img src="http://rogercortesi.com/eqn/tempimagedir/eqn2874.jpg"/>))</li> | <li><b>Difference Function -</b> Squared difference of the (signal - signal lag(<img src="http://rogercortesi.com/eqn/tempimagedir/eqn2874.jpg"/>))</li> | ||||
| <img src="http://rogercortesi.com/eqn/tempimagedir/eqn1752.png" /> | <img src="http://rogercortesi.com/eqn/tempimagedir/eqn1752.png" /> | ||||
| <li><b>Cumulative Mean Normalized Difference Function -</b> Calculate the cumulative mean on the normalised difference signal</li> | |||||
| <li><b>Cumulative Mean Normalized Difference Function -</b> Calculate the cumulative mean on the normalized difference signal</li> | |||||
| <img src="http://rogercortesi.com/eqn/tempimagedir/eqn3269.png" /> | <img src="http://rogercortesi.com/eqn/tempimagedir/eqn3269.png" /> | ||||
| <li><b>Absolute Threshold -</b> Fix for subharmonic error with Autocorrelation, choose (<img src="http://rogercortesi.com/eqn/tempimagedir/eqn2874.jpg"/>) that gives a mininum <img src="http://rogercortesi.com/eqn/tempimagedir/eqn3518.png"/></li> | |||||
| <li><b>Absolute Threshold -</b> Fix for subharmonic error with Autocorrelation, choose (<img src="http://rogercortesi.com/eqn/tempimagedir/eqn2874.jpg"/>) that gives a minimum <img src="http://rogercortesi.com/eqn/tempimagedir/eqn3518.png"/></li> | |||||
| </ol> | </ol> | ||||
| </div> | </div> | ||||