Mass flow operating by the coriolis principle
AssigneeFlowtec AG
InventorMamadi Keita
Life of this patent
Estimating the term…
Abstract
The mass flow meter operating by the Coriolis principle comprises a mechanical oscillating system having at least one measuring tube and an optical sensor means for sensing the mechanical oscillations of the oscillating system. The optical sensor means includes a light transmitter, a light receiver and an optical waveguide means having two quartz or sapphire rods which transmit the light of the light transmitter to the light receiver, the transmitted light flux being influenced by the oscillations of the mechanical oscillating system. To increase the mechanical strength and to protect the quartz or sapphire rods against temperature influences and against chemically aggressive media, the quartz or sapphire rods are embedded in ceramic material or glass which, preferably, is further surrounded by a metal cladding.
Claims10
A Coriolis type mass flow meter comprising a mechanical oscillating system and optical sensor means for detecting mechanical oscillations of the oscillating system, said optical sensor means comprising a light transmitter, a light receiver, and optical waveguide means for transmitting light from said light transmitter to said light receiver so that the transmitted light flux is influenced by the mechanical oscillations, said optical wave guide means comprising at least one quartz or sapphire rod wherein each quartz or sapphire rod is surrounded by a ceramic material or glass and the outside of said ceramic material or glass is surrounded by a metal cladding.
A Coriolis type mass flow meter comprising a mechanical oscillating system and optical sensor means for detecting mechanical oscillations of the oscillating system, said optical sensor means comprising a light transmitter, a light receiver, and optical waveguide means for transmitting light from said light transmitter to said light receiver so that the transmitted light flux is influenced by the mechanical oscillations, said optical wave guide means comprising a plurality of quartz or sapphire rods which are embedded in a ceramic or glass body surrounded by a metal cladding.
Dependencies are inferred from the claim text.