I have a question regarding the so called "black body cavity".
I am working with small Molybdenum cups (height 6 mm; d = 4 mm; bottom thickness 2mm; wall thickness 0.2 mm) A set of stainless steel radiation shields (3) is mounted around the cup in its vertical direction. The cup top opening is...
Dear reader
We are measuring temperatures between 750 and 1200 C using a thermouple type K (wire = 0.2 mm). The thermocouple touches the bottom of a small sample cup made of Molybdenum (h= 11 mm and d= 7 mm).
We are discussing the possibility that at these high temperatures the metals from the...
Hello to all
I am involved in a low temperature application of O-ring seals. A tank of 1 m length and 50 cm diameter has a flange at each side at must be sealed. Tank vacuum: better than 1e-5 mbar. Temperature range : -40 C to + 60 C. Gas permeability from atmosphere to vacuum is an issue.
At...
Hello everybody
I am busy developing a climate chamber: 4- 12 mbar total pressure of carbon dioxide (CO2; temperature range -40 C + 40 C. These conditions resemble the atmosphere on Mars. A Raman spectrometer system will be placed in this chamber for testing purposes.
The chamber will be...
Dear all
In our laboratory for earth sciences we in installed a carbonmonoxide gasline. Tube materials used are : copper (app. 10 m) and stainless steel ( app. 2 m) . At both ends of the gasline chromium plated reducer valve were installed with the 10 m copper line in between. #1 valve reduces...
