Abstract: A powder dispersing device of a powder particle size distribution measuring equipment has a base, an elastic force generating assembly and a first housing. The elastic force generating assembly includes a bumping piece, a force applying board and a power transmission assembly. Two ends of the power transmission assembly are respectively connected to the bumping piece and the force applying board. When the force applying board is applied with a first displacement, the power transmission assembly actuates the bumping piece to generate a second displacement which enables the bumping piece to have a first elastic force. The first housing is formed with a through hole on a side surface for one end of the force applying board to extend out. The first elastic force of the bumping piece triggers the bumping piece to strike on any surface facing toward the inside of the first housing and touching the other end of the bumping piece.

Abstract: A coffee bean roasting-degree distribution measuring device includes a housing, a micro-processing unit, an image-capturing unit, a light-emitting unit, and a displaying unit. The housing has a first end and a second end opposite the first end with an accommodating space existing between the first end and the second end. The second end is disposed to surround a group of coffee beans under measurement. The micro-processing unit and the image-capturing unit are disposed inside the accommodating space and electrically connected to each other. The light-emitting unit is disposed inside the accommodating space and includes at least one light emitter and a circuit board electrically connected to the light emitter. The circuit board is further electrically connected to the micro-processing unit and each of the light emitter has a light emitting port facing toward the second end.