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LockIn2Placement.pdf
Adobe Portable Document Format -
7.97 kB -
06/08/2020 at 22:33
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LI_Noise1Placement.pdf
Adobe Portable Document Format -
11.00 kB -
06/08/2020 at 22:31
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LI_Noise2Placement.pdf
Adobe Portable Document Format -
7.87 kB -
06/08/2020 at 22:30
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LockIn_Control.ino
Arduino code for the Teensy 3.1/3.2 to configure and control the ADA2200.
ino -
9.36 kB -
07/07/2018 at 23:15
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LI_Support.pdf
Scematics of the op amp circuits for the experimental signal path. These were built on a solderless breadboard.
Adobe Portable Document Format -
53.57 kB -
06/11/2018 at 22:14
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lab1_intro_phase_shifter.pdf
Describes the all pass filter design.
Adobe Portable Document Format -
91.10 kB -
05/30/2018 at 00:50
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OpAmp_Schem.pdf
Single Supply Opamp break-out for breadboarding.
Adobe Portable Document Format -
16.18 kB -
12/23/2017 at 05:27
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LINoise2_Schem.pdf
White noise source from EDN.
Adobe Portable Document Format -
22.48 kB -
12/23/2017 at 05:27
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LINoise1_Schem.pdf
NBS Pink Noise Source.
Adobe Portable Document Format -
29.29 kB -
12/23/2017 at 05:25
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LockIn2_Schem.pdf
The ADA2200 break-out for breadboarding.
Adobe Portable Document Format -
46.97 kB -
12/23/2017 at 05:24
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LowFreqNoiseDI5436fig1.jpg
Here's a quality version of the White Noise Source schematic.
JPEG Image -
190.81 kB -
11/26/2017 at 17:23
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White-noise-source-flat-from-1Hz-to-100kHz.pdf
The white noise source, from EDN. The 100KHz bandwidth seems adequate for this project.
Adobe Portable Document Format -
293.94 kB -
11/26/2017 at 17:21
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PinkNoiseGen.pdf
The 1/f, or flicker noise, source from NIST (nee National Bureau of Standards).
Adobe Portable Document Format -
71.27 kB -
11/26/2017 at 17:17
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ADA2200.pdf
Data sheet for the part I will use. This basically IS the lock in amplifier. Everything else can be considered support circuitry.
Adobe Portable Document Format -
636.92 kB -
10/24/2017 at 01:04
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ADA2200-EVALZ_UG-702.pdf
Description of the Evaluation Board that Analog Devices sells for this part. I intend to shamelessly copy from this to build test circuits.
Adobe Portable Document Format -
326.47 kB -
10/24/2017 at 01:04
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lock_in_amplifier.pdf
This a nice Apps Note from Analog Devices that explains how the Lock In Amp works and shows some alternative circuits.
Adobe Portable Document Format -
218.60 kB -
10/24/2017 at 01:04
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