Viewing posts for the category Ultrasensitive Instrument Design
This is for for a scanning surface potential measurement tool, used in contamination detection in semiconductors: 40 attocoulomb sensitivity in a 4 MHz bandwidth
This was a prototype of a transcutaneous (through-the-skin) sensor for blood glucose and blood alcohol.
A bit of a departure from our usual fare: a low cost, high speed sensor for detecting blood spots in eggs using spectral differencing. I'm going to be doing the firmware as well as the optics and electronics, and this will be the first actual client work for our newly qualified PCB designer, Magdalen.
This is a research project with a small division of a very large manufacturer. It's a complete optical/electronic design to measure optical absorbance in a rapidly moving assay plate.
This is a smaller job for a sensor manufacturer, interesting mostly for the size, weight, and power (SWaP) requirements. It has to be shot noise limited above 500 pA with a 1600 pF photodiode. (This is possible only because the bandwidth is relatively small.)