Measurement instrument

Details Measurement instrument Measurement instrument

2006-05-26

2010-06-01

Dole, Timothy J (Department: 2831)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S658000, C073S061410, C073S061420, C073S061430

Reexamination Certificate

active

07728606

ABSTRACT:
In a measurement instrument for measuring pollutants in a liquid, such as oil in water, the measurement instrument includes a main unit disposed in a first housing and a sensor unit disposed in a second housing. The housing, manufactured from an electrically insulating material, and an associated electric connection, are sealed against the passage of gas and liquid. The sensor unit has connections which are connected to a conduit system in which flows the liquid which is to be inspection measured. Sensors are further disposed in the sensor unit for emitting a measurement signal. The sensor unit and its electronics lack galvanic connection with electrically conductive components in the main unit, transfer of measurement signals between both of the units taking place by optical energy transfer, capacitative or inductive transfer. The housings have apertures for the transfer of measurement signals which are closed by non-electrically conductive foils which, when the main unit and the sensor unit are mounted together, abut against one another so they are protected against outer damage.

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International Preliminary Report on Patentability for corresponding International Application PCT/SE2006/000615.
International Search Report for corresponding International Application PCT/SE2006/000615.
Written Opinion of the International Searching Authority for corresponding International Application PCT/SE2006/000615.

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