Abstract: Provided are: a mechanical property measuring apparatus and method that can accurately measure a mechanical property through physical quantities; a substance manufacturing equipment and method that can improve the production yield rate and high-quality substance. A mechanical property measuring apparatus (100) comprises: a physical quantity measuring unit (5) configured to measure a plurality of physical quantities of a measured object that includes a substance and a film on a surface of the substance; a mechanical property calculating unit (82) configured to calculate, using a plurality of calculation models each for calculating a mechanical property of the substance and at least two of the plurality of physical quantities measured, the mechanical property of the substance for each of the plurality of calculation models; and a selection processing unit (81) configured to select one mechanical property based on the at least two of the plurality of physical quantities.

Abstract: Provided are a mechanical property measuring apparatus and method that can accurately measure a mechanical property through physical quantities, etc. A mechanical property measuring apparatus (100) comprises: a physical quantity measuring unit (5) configured to measure a plurality of physical quantities of a measured object that includes a substance and a film on a surface of the substance; a calculation model generating unit (81) configured to select a plurality of pieces of learning data and generate a calculation model for calculating a mechanical property of the substance; and a mechanical property calculating unit (82) configured to calculate the mechanical property of the substance using the calculation model generated and at least two of the plurality of physical quantities, wherein the selection physical quantities include at least one physical quantity measured using a first measurement signal and at least one physical quantity measured using a second measurement signal.

Abstract: Helical protrusion portions are formed on a peripheral side surface face of a bobbin, and a helical element is screwed into the helical grooves formed between the helical protrusion portions. The lower end of the bobbing is screwed onto an attachment fitting provided with a first collar portion at an intermediate portion and a second collar portion at the end. The depth of the helical groove portions becomes gradually shallower toward the leading end of the helical protrusion portions, and the helical protrusion portions formed on the lower end of the bobbin are formed higher, so that the position of the helical element is stabilized. Thus, deviation of the resonance point of the helical element can be prevented.

Abstract: A disc carriage for use in a disc player is provided with a pair of surfaces coming into contact with a disc when the disc is inserted or ejected from the disc player. The pair of surfaces are other than parallel and are symmetrically disposed about a center plane oriented in the direction of loading and ejecting the disc so that only peripheral edge portions of the disc contact the pair of surfaces. A second pair of surfaces disposed opposite to the first pair of surfaces can also be arranged in a non-parallel position, symmetrically disposed about the center plane, to cooperate with the first pair of surfaces so that only peripheral edge portions of the disc contact either pair of surfaces.