Abstract: A delay measurement circuit includes a transporting path selector, first and second delay measurement devices, and a controller. The delay measurement circuit forms a plurality of transporting loops through two of a first reference transporting conductive wire, a second reference transporting conductive wire, and a tested transporting conductive wire according to a control signal. The first delay measurement device respectively measures part of the transporting loops to obtain a plurality first transporting delays. The second delay measurement device respectively measures part of the transporting loops to obtain a plurality second transporting delays. The controller generates the control signal, and obtains a transporting delay of the tested transporting conductive wire according to the first transporting delays and the second transporting delays.

Abstract: A delay measurement circuit includes a transporting path selector, first and second delay measurement devices, and a controller. The delay measurement circuit forms a plurality of transporting loops through two of a first reference transporting conductive wire, a second reference transporting conductive wire, and a tested transporting conductive wire according to a control signal. The first delay measurement device respectively measures part of the transporting loops to obtain a plurality first transporting delays. The second delay measurement device respectively measures part of the transporting loops to obtain a plurality second transporting delays. The controller generates the control signal, and obtains a transporting delay of the tested transporting conductive wire according to the first transporting delays and the second transporting delays.

Abstract: A fluid mixing device includes a double pipe, a feed hopper, and a mixing chamber having a concave disc and a plurality of guide plateguide plates, wherein the double pipe has an inner pipe body, an outer pipe body, and a plurality of stoppers for forming a plurality of channel openings between the inner pipe body and the outer pipe body. The fluid flows through the double pipe and the feed hopper, and then lashes the concave disc in the mixing chamber to achieve a fast and uniform mixing effect.

Abstract: A fluid mixing device includes a double pipe, a feed hopper, and a mixing chamber having a concave disc and a plurality of guide plateguide plates, wherein the double pipe has an inner pipe body, an outer pipe body, and a plurality of stoppers for forming a plurality of channel openings between the inner pipe body and the outer pipe body. The fluid flows through the double pipe and the feed hopper, and then lashes the concave disc in the mixing chamber to achieve a fast and uniform mixing effect.