n. 波动曲线记录仪

[医] 记波[纹]器

[ noun ]
scientific instrument consisting of a rotating drum holding paper on which a stylus traces a continuous record (as of breathing or blood pressure)
<noun.artifact>

Kymograph \Ky"mo*graph\, n. [Gr. ? wave + -graph.] (Physiol.)
An instrument for measuring, and recording graphically, the
pressure of the blood in any of the blood vessels of a living
animal; -- called also {kymographion}.