User talk:2001:16B8:2C8A:3400:4C9C:7009:EA7E:E892

Differences between CASY and Coulter cell counting
I found that paragraph difficult to understand. " [...] there is an aperture called “sensing zone”, with a known volume of electrolyte in a coulter counter. When suspended cells pass through it, they would displace the equivalent volume of electrolyte in the sensing zone and cause a short term change of electric current across the aperture. Since the circuit is to detect the change of current across it, any particles that can displace the electrolyte will be counted. "

This sounds similar to:

"... measures the conductivity between 2 electrodes separated by a defined pore. Cells are suspended in [...] a defined buffer solution. Cells pass through the pore generate an electrical pulse that correlates with the volume of the cell ..."

Which is the description of the CASY principle on their own Homepage. https://www.ols-bio.de/products/cell-counter-casy