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由于自动喷水绘图笔具具有不与走纸直接接触阻尼小、频响好、笔迹细腻清晰等优点,进口的脑电图,心电图等有描记波形功能的仪器,有一些采用此笔具。但由于它出水管狭细制造精度高,又长期浸泡在墨水中,因此极易被堵塞不出水或被腐蚀无法正常使用,使许多医院、研究所的这种价值数万美元的仪器不能正常工作。目前国内无法生产这种笔具:而购买自动喷水笔每支价格在120美元左右。笔者用简单的方法
Because of the automatic fountain pen has not come in contact with the paper direct contact damping small, good frequency response, handwriting fine and clear advantages, imports of EEG, ECG and other trace waveform features of the instrument, some using this writing instrument. However, due to its narrow manufacturing precision of the outlet pipe and its long-term immersion in the ink, it can easily be clogged without water or corroded and can not be used normally. As a result, the tens of thousands of dollars of equipment in many hospitals and institutes can not work normally . At present, China can not produce such writing instruments: the price of each automatic fountain pen is about 120 US dollars. I use a simple method