Patent ID: 8096192

Claim:
A flowmeter comprising: a pair of fluid pipes forming a flow path for a measurement fluid, having a substantially equal shape and equal size with each other, and arranged to be substantially mirror-symmetric and parallel; an oscillator including a coil and a pair of magnetic substances for oscillating the fluid pipes, each of the pair of magnetic substances in the oscillator being attached to the respective fluid pipes; a plurality of detectors disposed to be spaced apart from each other along the flow path of the fluid pipes and including a coil and a pair of magnetic substances for detecting a state of vibration of the fluid pipes, each of the pair of magnetic substances in the plurality of detectors being attached to the respective fluid pipes; a calculator that calculates a mass flow rate of the measurement fluid that passes through the flow path of the fluid pipes based on each vibration that is detected by the plurality of detectors, a supporting base to which an end portion of each of the fluid pipes is mounted and which supports each of the fluid pipes in a manner capable of being vibrated; a frame fixed to the supporting base said frame being integrally formed with (a) a mounting portion having a penetrating portion for mounting the coil in the oscillator and the respective coils in the plurality of detectors, (b) a reinforcing portion disposed at an outer circumference of the mounting portion and enhancing a rigidity of the mounting portion, and (c) a fixing portion for being fixed to the supporting base, and wherein the mounting portion is disposed between the pair of fluid pipes, and having a thickness that does not interfere with the pair of fluid pipes, and the reinforcing portion has an outer wall portion that protrudes at least to one side of a thickness direction of the mounting portion, and substantially continuously surrounds an outer circumference of the fluid pipes.