生理学实验记录用墨水描笔,曾采用细玻璃管、赛璐珞、废圆珠笔芯和刨花片等制作的描笔。但从记录曲线的效果上都不太理想,其最大的缺点是滴满墨水后,在描记曲线的过程,由于描笔的振动,墨水容易漏掉污染记录纸面。我们实验室受市场出售的软笔水笔的启发(软笔 Physiological experiments recorded with ink strokes, had used thin glass tube, celluloid, waste ballpoint pen and chip shavings made by the pen. However, the effect of the recording curve is not very satisfactory. The biggest disadvantage is that after the ink is filled, the ink easily leaks from the surface of the recorded paper when the curve is traced. Inspired by the soft-ink pen that our lab sells (soft pen