| - Date - | - Desciption - |
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09/**/2002
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Idea of Arcadia is sparked.
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01/10/2003
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Began writing Arcadia software.
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01/31/2003
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First model A/D box complete.
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01/31/2003
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First model AC EMF Meters (rewired ELF Zones x3) completed.
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02/04/2003
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GUI (Graphical User Interface) added to software.
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02/08/2003
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First BETA test of Arcadia 1.0 at OKCPRG Research Site; Log-everything scenario.
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02/15/2003
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First BETA test of anomaly logging algorithms at research site; Tested successful.
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02/19/2003
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TriField Natural Amplifier added, to gain resolution.
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02/27/2003
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ELF Zone circuitry & tripod stands designed and rewired
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03/10/2003
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Negative baseline change capabilities added to algorithms.
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03/12/2003
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ELF Zones calibrated (still not very happy with these).
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03/20/2003
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TriField conversion extrapolated.
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03/26/2003
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Static temperature meter designed, built, and anomaly logging algorithm added.
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04/03/2003
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Software re-configured to be more efficient.
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04/05/2003
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Major software channel number glitches in anomaly logging system found and fixed.
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04/10/2003
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TriField anomaly algorithm reconfigured
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04/12/2003
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Static temperature meter op-amp replaced with an LM358, with a lower temperature coefficient.
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04/15/2003
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Input impedance added, to protect A/D chip.
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04/16/2003
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Binary Motion detector input added.
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04/16/2003
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Pause button added, and second TriField Natural added.
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04/17/2003
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Motion detector programmed into software.
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04/17/2003
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Oscilloscope utility added to software.
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04/29/2003
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Pause status logging added.
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04/29/2003
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Magnetoresistive 2 axis static field meter circuitry designed.
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05/01/2003
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Static temperature probe casing built.
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06/20/2003
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2 axis static field meter circuitry redesigned.
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07/11/2003
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-5v supply added in, for precision differential amplifiers.
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07/12/2003
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TriField amplifier rewired with 10x precision differential amplifiers.
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07/17/2003
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Max/Min readings utility added.
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07/21/2003
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TriField internal regulators added.
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07/23/2003
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Temperature module rewired to 0-124 F (removed floating ground).
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07/24/2003
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Status box w/buzzer added.
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07/26/2003
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2 axis static field meter finished (This is the real deal!).
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07/28/2003
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Software/hardware version upgraded to 2.0 after conversion simplification.
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07/28/2003
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TriField regulators moved to amp box after current leakage found.
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07/31/2003
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Average baseline added to baseline run.
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08/05/2003
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Visible light sensor added.
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08/06/2003
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Humidity sensor added.
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08/07/2003
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Log timing accuracy increased.
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08/11/2003
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2 AC EMF Meters (Electrosensors) replace all ELF Zones meters.
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08/15/2003
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Electrosensor circuit tweaked 08-15-03 after they were found to be unstable.
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08/23/2003
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2 axis static field meter resolution increased from +-400mG to +-300mG.
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09/06/2003
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Electrosensors rewired, with original reference amp, but no AC filter capacitor.
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09/12/2003
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IR Temperature meter built.
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10/03/2003
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IR Temperature meter rewired after conversion was found to be non-constant.
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02/01/2004
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Online public releasing of ARCADIA
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