chemical thermometer

chemical thermometer

[′kem·i·kəl thər′mäm·əd·ər]
(engineering)
A filled-system temperature-measurement device in which gas or liquid enclosed within the device responds to heat by a volume change (rising or falling of mercury column) or by a pressure change (opening or closing of spiral coil).
References in periodicals archive ?
Because stars are much hotter, Najita's team could apply a kind of chemical thermometer to tell them apart.
Temperatures from axillary chemical thermometers were compared to core temperatures in five total samples (see Figure 4).
Depending upon the mode selected, electronic thermometers yield results in a few seconds and up to 80 seconds (Barringer et al., 2011; Fadzil et al., 2010; Khorshid, Eser, Zaybak, & Yapucu, 2005), while chemical thermometers require 3 to 5 minutes or more to register an axillary temperature (Martin & Kline, 2004).
These authors also determined that oral chemical thermometers are "acceptable for screening patients but is not accurate enough for making diagnostic and treatment decisions" (p.
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