陶磁头热笔能在加电后极短的时间内达到额定温度，不需要预热，故可以在走纸时给热笔加电而停走时不加电，热笔耗能少、寿命长，有些型号的心电图机采用这种新型热笔取代传统的电阻丝热笔，如ＥＣＧ－６５５１型等。但陶磁热笔价格太贵，相当于ＥＣＧ—６５１１热笔的几倍、Ｘ Ceramic head hot pen can reach the rated temperature within a very short time after power-on, no preheating is needed, so it can be used to power the hot pen during paper feeding and not to be powered when stopped. The heat pen consumes less energy and has a long service life. Some models of electrocardiographs use this new type of thermopen to replace the traditional resistance wire heat pen, such as the ECG-6551 type. But ceramic hot pens are too expensive, equivalent to several times the number of ECG-6511 hot pens, X