High Gradient Extractors for Microarthropods
The extractors heat the insulated samples from above and cools them from below. The heating is gradually increased automatically while the cooling maintains the arthropod receiving liquid at 5 degrees
Inside the extractor: the termistor (white cord) used to place on
top of a sample to control the
surface temperature of the soil. An empty transparent cylinder used to
hold the soil during extraction,
this will be surrounded by the grey insulating foam, to create the
vertical heat gradient.
Programmable heat and cooling controlling unit connected to a heater
in the top of the extractor.
An extraction schedule programme is determining the duration of
stepwise increases of heating
temperature as well as the temperature of the receiving liquid.
The chill bath is connected to the extractor with plastic
tubes
using the fittings as shown on the photos. There are an inlet
and an outlet. On the left inlet connection the fitting has
been connected and the other fitting is shown next to the ruler.
The project is the mire we have to walk in while we explore our ideas and try to do something interesting
