褶皱计

模型FTE0012

悬垂仪由圆形试样支架、发光的电灯、用光敏氨纸测定试样阴影覆盖面积的曝光显影装置和用电灯暴露氨纸测定试样阴影覆盖面积组成。圆形的标本支持是铸造铝和固定在一个透明的亚克力板。该薄板一端铰接，可提起放置氨水纸进行曝光。纸张被保持在亚克力板下方的弹性表面上，以便当它水平时与亚克力板紧密接触。所述标本持有和纸张曝光装置保持在金属板曝光室内。电灯安装在腔室的上端，这样从它发出的光线就能被试样拦截。未被拦截的光线落在纸上，使其暴露，从而在暴露和未暴露区域之间划出界限。这个房间有一个封闭的配件门。它的底部和顶部附近有通风孔，以保持凉爽。在暴露室的下方设置氨蒸汽显影室，其中保存曝光纸以显影。 This chamber has a close fitting door and an arrangement to keep ammonium hydroxide to create a suitable atmosphere for developing the print. The test specimen is kept over a welded wire mesh plateform to ensure a uniform developing. The outside of the apparatus is finished in dark admiralty grey synthetic enamel to give it a corrosion resistant finish. A metal template of 250 mm diameter have a central hole for marking and cutting the test specimens, a specimen pressing disc, one hundred sheets of ammonia process paper, and one bottle of ammonium hydroxide are supplied as standard accessories.