(Piston Rekorder.)
Description: The air pressure from a transducer can be used to
move a piston of hard rubber which moves in a polished glass
cylinder and acts on the writing pen through a double linkage.
This is especially suited for volumetric recording, since
comparable volumes are completely comparable. (Expanded caption
Copyright 1998, Edward J. Haupt)
(Source: None given.)
Source of illustration: Zimmermann, E. (1903). XVIII. Preis-
Liste über psychologische und physiologische Apparate
(p. 98). Leipzig: Eduard Zimmermann.
DESCRIPTORS:
Type: Component
Stimulus: Motion
System:
Output: Bristle motion.