There is provided a scroll fluid machine in which sealability is improved by uniforming a deformed shape of a fastened face of a spindle frame with respect to a fixed scroll, and compression performance is improved. More specifically, when the parallel vaporized fuel system is applied to vehicles, vaporized fuel is provided for general driving and liquid fuel is supplied as needed for immediate and heavy acceleration. The sensor further includes a damper that restricts vertical displacement of the excitation mass relative to the housing. Plated through holes may be disposed in a substrate beneath the LED light source to dissipate heat from the LED light source, prolonging the life of the LED light source andor the encapsulation material.