Abstract: The present invention relates to a reaction platform, which comprises: a machine body with a bottom plate for placing non-porous substrates; and a coater module configured on the top of the machine body and capable of maintaining a preset of a predetermined height for moving along the surface of non-porous substrate, wherein the coater module has one or more slits, and a target liquid can be directly injected or sucking in from the outside of the coater module through the slit, and spreading the target liquid onto a surface of the non-porous substrate while moving along the non-porous substrate; wherein the surface of the non-porous substrate has a target to be coated. The reaction platform of the present invention can not only save time, labor and cost, but also have accurate and reproducible experimental results, showing better results than traditional methods.

Abstract: A system for measuring a three-dimensional (3D) size of an object in a space according to an indicating mark is provided, wherein the indicating mark is used to point to one of a plurality of measuring points on the object. The system includes an image capturing module, an spatial vector calculating module, and a measuring module. The image capturing module captures an image of the space. The spatial vector calculating module respectively calculates a spatial vector corresponding to the indicating mark when the indicating mark is used to point to each of the measuring points on the object in the image. The measuring module calculates spatial coordinates of the measuring points according to the spatial vectors so as to obtain the 3D size of the object.

Abstract: A humidity sensor includes a substrate, at least two elongated electrodes formed respectively on the substrate where each of the elongated electrodes has a first end and a second end, at least a pair of comb-like electrodes each contacting with the first end of the elongated electrode, and a humidity sensitive film which contains hydrophilic ionic polymer and is formed respectively on the at least a pair of comb-like electrodes but not on the second ends of the elongated electrodes. In addition, the present invention further comprises a method for making such a humidity sensor.