Precision instruments, metrology, fluorescence, low-noise analog electronics – that’s what we do.
Infrared CO2 Measurement
These notes describe the opto-mechanical engineering I contributed to a Pellistor that can detect elevated levels of CO2 in the air.
Weight gain at NIST
We like to measure things – and NIST is our source of the best measurement advice.
Low Noise, Low Drift Techniques
This presentation has a set of clear, well thought out images describing how chopper techniques can reduce 1/f noise, reduce drift, and even how to cancel the nasty charge injection of FET switches.
Fourier Transform of 1/f Noise
Here’s a curious article by Steve Smith, author of The Scientist and Engineer’s Guide to Digital Signal Processing, where he shows that 1/f noise is its own Fourier transform!
Low Noise NMR Design
Careful consideration of all the elements of a system’s design can lead you to some very improved performance.
CCD Cameras, Eyes, And Physics
This tech note was motivated by the question – how does the response of our eyes differ from the response of a CCD camera sensor.
Vision Response vs. Planck’s Black Body Curve
Color temperature is based upon the idea of a Planck black-body radiator.