Abstract: A compressor wheel of a fluid compression device includes a wheel part, a shaft part and a plurality of connection parts. The wheel part includes a main body formed with a through hole, and a plurality of blades protruded from an outer side of the main body. The shaft part is accommodated in the through hole and configured to connect to a rotor shaft. The plurality of connection parts is connected between an inner side of the main body and the shaft part. Wherein, a fluid passage is formed between the inner side of the main body and the shaft part to allow fluid to flow to a rear side of the compressor wheel from a front side of the compressor wheel via the fluid passage.

Abstract: A floating type machining platform includes a base, a holding platform, a first elastic module, a second elastic module and a third elastic module. The holding platform is configured to hold a workpiece. The first elastic module is connected between the base and the holding platform for allowing the holding platform to move along and rotate around a first axis relative to the base. The second elastic module is connected between the base and the holding platform for allowing the holding platform to move along and rotate around a second axis relative to the base. The third elastic module is connected between the base and the holding platform for allowing the holding platform to move along and rotate around a third axis relative to the base. Wherein, the first and the second axes are different horizontal axes, and the third axis is a vertical axis.

Abstract: A rotation angle measuring device includes a light source for generating a first light beam with a first polarization direction and a second light beam with a second polarization direction; a first beam splitter for splitting the first light beam and the second light beam to generate a third light beam and a fourth light beam; an image sensor for sensing a first interference pattern generated by the first and second light beams passing through a first displacement measurement module, and sensing a second interference pattern generated by the third and fourth light beams passing through a second displacement measurement module; and a processing unit for calculating two displacement values at two different positions on a measured object according to the first and second interference patterns, in order to further calculate a rotation angle of the rotation angle measuring device relative to the measured object along a first axis.

Abstract: A compressor wheel of a fluid compression device includes a wheel part, a shaft part and a plurality of connection parts. The wheel part includes a main body formed with a through hole, and a plurality of blades protruded from an outer side of the main body. The shaft part is accommodated in the through hole and configured to connect to a rotor shaft. The plurality of connection parts is connected between an inner side of the main body and the shaft part. Wherein, a fluid passage is formed between the inner side of the main body and the shaft part to allow fluid to flow to a rear side of the compressor wheel from a front side of the compressor wheel via the fluid passage.

Abstract: An image inspection device includes a rotating platform configured to carry a workpiece; a first image capturing device configured to capture a top-view image of the workpiece; a second image capturing device configured to capture a lateral-view image of the workpiece; a storage unit configured to pre-store a plurality of lateral-view images of a standard workpiece from different angles; and a processing unit. The processing unit controls the rotating platform to rotate the workpiece to a first angle and a second angle according to the top-view image. The processing unit is configured to generate a first comparison result and a second comparison result by comparing the lateral-view images of the workpiece with lateral-view images of the standard workpiece from, respectively, the first angle and the second angle, and determine whether the workpiece has a defect according to the first comparison result and the second comparison result.

Abstract: An image inspection device includes a rotating platform configured to carry a workpiece; a first image capturing device configured to capture a top-view image of the workpiece; a second image capturing device configured to capture a lateral-view image of the workpiece; a storage unit configured to pre-store a plurality of lateral-view images of a standard workpiece from different angles; and a processing unit. The processing unit controls the rotating platform to rotate the workpiece to a first angle and a second angle according to the top-view image. The processing unit is configured to generate a first comparison result and a second comparison result by comparing the lateral-view images of the workpiece with lateral-view images of the standard workpiece from, respectively, the first angle and the second angle, and determine whether the workpiece has a defect according to the first comparison result and the second comparison result.

Abstract: A rotation angle measuring device includes a light source for generating a first light beam with a first polarization direction and a second light beam with a second polarization direction; a first beam splitter for splitting the first light beam and the second light beam to generate a third light beam and a fourth light beam; an image sensor for sensing a first interference pattern generated by the first and second light beams passing through a first displacement measurement module, and sensing a second interference pattern generated by the third and fourth light beams passing through a second displacement measurement module; and a processing unit for calculating two displacement values at two different positions on a measured object according to the first and second interference patterns, in order to further calculate a rotation angle of the rotation angle measuring device relative to the measured object along a first axis.

Abstract: A two-sided compressor wheel of a fluid compression device includes a first wheel part and a second wheel part. The first wheel part has a plurality of first blades. A first through hole is formed on the first wheel part along a rotation axis, and a first cavity is formed at a bottom of the first wheel part. The second wheel part has a plurality of second blades. A second through hole is formed on the second wheel part along the rotation axis, and communicated with the first through hole. Wherein, the bottom of the first wheel part is connected to a bottom of the second wheel part.

Abstract: A displacement measuring device includes an optical module for refracting or reflecting light; a beam splitting module including a polarizing beam splitting layer for allowing light with a first polarization direction to pass through and reflecting light with a second polarization direction; a light source for generating a first light beam with the first polarization direction and a second light beam with the second polarization direction, wherein the first light beam is reflected by a measured object after passing through the optical module and the beam splitting module, and the second light beam is reflected by the polarizing beam splitting layer after passing through the optical module; an image sensor for sensing an interference pattern generated by the reflected first and second light beams; and a processing unit for calculating a displacement value of the measured object according to the interference pattern.

Abstract: A turbo rotor includes a turbine wheel, a connection element and a rotor shaft. The turbine wheel has a plurality of blades, wherein a cavity is formed at a bottom of the turbine wheel, and at least one fixing structure is formed in the cavity. The connection element is accommodated in the cavity. The connection element includes a main body and at least one engaging structure formed on the main body, wherein the at least one engaging structure is engaged with the at least one fixing structure for preventing the connection element from moving along or rotating around a rotational axis of the turbo rotor relative to the turbine wheel. The rotor shaft is connected to the main body for supporting the turbine wheel.

Abstract: A floating type machining platform includes a base, a holding platform, a first elastic module, a second elastic module and a third elastic module. The holding platform is configured to hold a workpiece. The first elastic module is connected between the base and the holding platform for allowing the holding platform to move along and rotate around a first axis relative to the base. The second elastic module is connected between the base and the holding platform for allowing the holding platform to move along and rotate around a second axis relative to the base. The third elastic module is connected between the base and the holding platform for allowing the holding platform to move along and rotate around a third axis relative to the base. Wherein, the first and the second axes are different horizontal axes, and the third axis is a vertical axis.

Abstract: The present invention discloses a cup, particularly a bamboo charcoal cup containing bamboo charcoal, which comprises a cup body whose internal part can load liquids or foods. The bamboo charcoal cup is composed of bamboo charcoal material which is refined under high temperature and may emit the natural far infrared-ray (IR). After examination, the average emission rate of the bamboo charcoal is 83.7% to 91%, and its measured wavelength is 8 to 12 m. These properties are consensus with those of the far IR emitted from human body. Such far IR therefore belongs to the health care class. It could benefit our health if we use the bamboo charcoal cup for a long time. For the injured people or the patients who tend to be tired and ache, the bamboo charcoal cup is a very good health care tool.