Precision instruments, metrology, fluorescence, low-noise analog electronics – that’s what we do.
Energy Harvesting – Battery-Free Radio
We’re working on some energy harvesting projects – and we learned about this amazing project – a radio powered only by the sound of the voice of the person talking at the transmit end.
High Voltage Testing of 208VAC Phase Controller Used On Semiconductor Production Equipment
This phase controller uses the tried and true back to back SCR technique.
Arduino Motor Control
We’re using some Arduino boards for a variety of projects – to run the motion stage (25um resolution), to test LED colors, to run an oven for testing temperature compensation electronics.
Lens Testing – Our Precision MTF Test Jig
Recently we designed and built a precision motion stage capable of focus adjustments to about 0.5um.
Low Noise x1000 Amplifier
Here’s the specs: Voltage noise 2.5nV/√Hz, Gain 1000, bandwidth 0.3Hz to 500kHz.
Frequency Compensated Attenuator Tests Amplifiers
We’re working on a low-noise amplifier product, and to test it we need some attenuation, to generate clean low-level signals. The pdf shows a schematic and describes some test results.
Photos of Mechanical, Front Panel Design
Portable electronic instruments. These photos show knobs, nuts, knurled, and know-how (Pete’s).
SPIE Photonics West 2010
We’ll be teaching a ‘short course’ at the Photonics West 2010 show this January.
Light Uniformity Testing
For both a clinical test microscope, and a home theater HDTV projection display, the light from the source must be quite uniform.
Custom Front Panels
Here’s a vendor we recommend, and a photo of some parts they made for us.
Radiometric Measurements
It’s easy to confuse the units of LED light output. Steradians, luminous intensity, etc.
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.