(Stromuhr nach Ludwig.)
Description: The medium-large version, which encloses (blood)
vessels of about 50 cu cm. This appears to be a clock in the same
sense that a sand-filled glass can be called a clock, since the
oil in one chamber is forced into the saline solution in the
other. The vessels are both the same size and connected by a U-
shaped tube. The known volume to the containers is used to
determine blood volume flow rate, since the number of times the
standard volume is filled can be used to calculate the volume
flow. (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. 83). Leipzig: Eduard Zimmermann.
DESCRIPTORS:
Type: Component
Stimulus:
System: Blood
Output: Blood volume per unit time.