Plugging meter

Patent · Mon Jan 01 04:00:00 EST 1979

OSTI ID:863469

Nagai, Akinori ^[1]

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1. Higashi, JP

A plugging meter for automatically measuring the impurity concentration in a liquid metal is designed to have parallel passages including a cooling passage provided with a plugging orifice and with a flow meter, and a by-pass passage connected in series to a main passage having another flow meter, so that the plugging points may be obtained from the outputs of both flow meters. The plugging meter has a program signal generator, a flow-rate ratio setter and a comparator, and is adapted to change the temperature of the plugging orifice in accordance with a predetermined pattern or gradient, by means of a signal representative of the temperature of plugging orifice and a flow-rate ratio signal obtained from the outputs of both flow meters. This plugging meter affords an automatic and accurate measurement of a multi-plugging phenomenon taking place at the plugging orifice.

• Assignee: Doryokuro Kakunenryo Kaihatsu Jigyodan (Tokyo, JP)
• Patent Number(s): US 4178795
• OSTI ID: 863469
• Country of Publication: United States
• Language: English

Related Subjects

/73/976/
accordance
accurate
accurate measure
accurate measurement
adapted
affords
automatic
automatically
by-pass
change
comparator
concentration
connected
cooling
designed
flow
flow meter
flow-rate
generator
gradient
impurity
impurity concentration
including
liquid
liquid metal
main
means
measurement
measuring
metal
meter
meters
multi-plugging
obtained
orifice
outputs
parallel
passage
passages
pattern
phenomenon
plugging
plugging meter
predetermined
predetermined pattern
provided
ratio
representative
series
setter
signal
signal generator
signal representative
taking
temperature