Microparticle measuring apparatus
AssigneeAdvantest Corporation
InventorsYasuharu IMAI, Nobuei WASHIZU
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Abstract
A pore-based device has a first liquid chamber and a second liquid chamber separated by a partition having a pore. A measuring instrument is structured to measure a current signal flowing between a first electrode provided in the first liquid chamber and a second electrode provided in the second liquid chamber. A pressure controller is structured to generate pressure difference between the first liquid chamber and the second liquid chamber. A tank is connected between a pump and the pore-based device. The pump is structured to remain stopped during the measurement.
Claims4
A microparticle measuring apparatus for use with a pore-based device,
- the pore-based device comprising a first liquid chamber and a second liquid chamber separated by a partition having a pore,
- the microparticle measuring apparatus comprising:
- a measuring instrument structured to measure a current signal flowing between a first electrode provided in the first liquid chamber and a second electrode provided in the second liquid chamber;
- and
- a pressure controller structured to generate pressure difference between the first liquid chamber and the second liquid chamber,
- the pressure controller comprising:
- a pump;
- and
- a tank connected between the pump and the pore-based device,
- and wherein the pump is structured to remain stopped during the measurement.
Dependencies are inferred from the claim text.