Recent content by jbeale

Thanks for the all ideas! It looks to me like the people making similar sensors have settled on a glass capillary as most practical. A paper by Marcillo et.al. (2012) finds a 25 micron diameter, 1.1 cm glass capillary tube with only 1 cubic cm volume backing chamber, when a differential...

Thanks Ivan, I wasn't sure if I could get some permeable material to restrict flow in a well-controlled way, but it is worth a try. Your point Dullard is well taken, right now I simply have a large-ish glass jar (formerly, a large peanut-butter jar) with a hose connection through the lid, for my...

Thank you baluncore for that note! Indeed I already have some ~0.2 mm ID glass capillary tubes, which are not small enough, but perhaps I could draw them out. Adjusting flow via temperature is an interesting idea that I had not considered. Thanks tech99, I'm not sure of the details but I thought...

I'm just a hobbyist. I am playing around with a long-time-constant microbarometer apparatus, for which I want a valve with a very small flow rate. The working fluid is just normal dry air at atmospheric pressure. It might be considered more a calibrated leak than a normal valve. I know can buy...

Nevermind: apparently, the name I was looking for was Fastie–Ebert monochromator.

Can anyone say if there is a specific name for the Czerny-Turner monochromator configuration shown below, but specifically when the two mirrors M1 and M2 extend into each other and combine forming one monolithic mirror M12 with one single radius of curvature? I thought I saw such a design years...