After some testing period we got new version of the schema ready. We are now at version 0.3. What is new? Well at least following has changed since ver 0.2: Error in UART wiring fixed.PicKit compatible programming connector added.Testing connector added.Voltage reference for Vref- input added.Voltage divider and by-pass capacitor added to the video signal… Continue reading Updated schematics, now ver 0.3
Author: The Development Team
Test Tube Holder
Few months ago I made a post about a liquid container I had built. It is a one liter steel can with two windows. I can use it for measuring transmission spectra of all kind of liquids. However it didn't turn out as useful as I initially thought. Changing a sample liquid is too troublesome.… Continue reading Test Tube Holder
Liquid Container & Fiber input
I had a task to measure absorption spectrum through a container filled with liquid. No problem… except I didn't have a container. So I built this. A simple 1 liter container for measuring liquids. The container itself is a one liter paint can. Window ports are made of typical home pipe fittings, adapters and plugs.… Continue reading Liquid Container & Fiber input
Field day
This June I took the spectrometer for a weekend trip to my summer cottage and did some outdoor testing. I did most of the testing during late evenings when there was no direct sun light but sky was still relatively bright, enough to read a book. So much fun working on damp patio under the… Continue reading Field day
Intensity Calibration, part 1
The intensity response of the spectrometer depends heavily on a wavelength in question. If we are using this device just to measure locations of spectrum peaks it does not matter much. But if we are interested in wider spectral bands or continuums and their detailed shape we need to consider the intensity calibration (term intensity… Continue reading Intensity Calibration, part 1
Experimental Photonics 