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第142章 巧制听诊器(1 / 1)

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张嫣成功制作出温度计后,心中的成就感还未消散,新的想法便又涌现出来。“现在有了温度计,可诊断病情还缺个听诊器。”她坐在桌前,一手托着下巴,陷入了深深的思考。

“听诊器的话,用什么做呢?”张嫣在房间里来回踱步,目光不停地扫过周围的物件,试图从中找到灵感。她的眼神落在了一块柔软的皮革上,心中突然有了一个初步的构想。

张嫣决定先用这块皮革来制作听诊器的耳塞部分。她拿起皮革,用剪刀仔细地裁剪出两个合适大小的圆形片。然后,她拿起针线,将圆形片的边缘细致地缝合起来,使其更加牢固。接着,她在圆形片的中心位置剪出一个小孔,以便后续安装传声的部件。

做好耳塞后,张嫣开始思考如何制作传声的管道。她在库房里翻找了一番,发现了一些粗细适中的空心铜管。这些铜管质地坚硬,能够很好地传递声音。她先用尺子测量了所需的长度,然后用锯子将铜管锯成两段合适的长度。

为了让声音能够更清晰地传递,张嫣对铜管的内壁进行了打磨。她找来砂纸,一点一点地摩擦着铜管的内壁,直到其变得光滑无比。在打磨的过程中,她的眼神专注而认真,不放过任何一个细微的瑕疵。

接下来是关键的一步,将耳塞与铜管连接起来。张嫣想到了用胶水,但又担心胶水会影响声音的传递效果。经过一番思索,她决定采用套接的方式。她将铜管的一端稍微扩大,使其能够紧密地套住耳塞上的小孔。然后,她用细小的铁丝将套接处缠绕固定,确保连接牢固且不会松动。

传声管道的另一端,张嫣计划安装一个能够收集声音的部件。她想到了用一个圆形的金属片,中间凸起,类似于一个小喇叭的形状。她先用锤子和模具将金属片敲打成所需的形状,然后在边缘处打上几个小孔,以便与铜管连接。

张嫣将金属片与铜管的另一端连接好,整个听诊器的雏形便已经显现出来。但她还不满意,觉得外观不够美观,也担心使用过程中会不够舒适。于是,她又找来一些柔软的布料,将铜管包裹起来,不仅增加了舒适度,还起到了一定的保护作用。

然而,这还不够。张嫣深知听诊器的效果至关重要,她决定进行多次试验和改进。她先是对着一些发声的物体,如敲打的锣鼓、吹奏的笛子等,用自制的听诊器倾听,不断调整各个部件的连接和位置,以获得最清晰的声音效果。

在试验的过程中,张嫣发现声音在传递过程中有时会出现衰减或者失真的情况。她反复检查各个连接处,发现是套接处不够紧密导致的。于是,她又重新进行了加工和调整,使得声音能够更加顺畅地传递。

经过无数次的尝试和改进,张嫣终于制作出了一个令她满意的听诊器。她拿着听诊器,脸上露出了欣慰的笑容。

为了进一步验证听诊器的效果,张嫣找来了宫中的几位宫女和太监,让他们分别模拟不同的病症,如咳嗽、气喘等。她用听诊器仔细地倾听他们身体内部的声音,与以往凭借经验和观察做出的判断进行对比。

结果令她十分惊喜,通过听诊器听到的声音为她提供了更多准确的信息,能够更准确地判断病情。张嫣兴奋地说道:“终于成功了!这个听诊器一定能在诊断病情时发挥大作用!”

但张嫣并没有因此而满足,她知道这个听诊器还有改进的空间。她继续研究和探索,希望能够让听诊器更加完善,

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