Skip to main content
. Author manuscript; available in PMC: 2015 Dec 1.
Published in final edited form as: Dent Mater. 2014 Nov 21;30(12):1316–1324. doi: 10.1016/j.dental.2014.09.006

Fig. 1.

Fig. 1

Photographs of the tensometer for the simultaneous measurement of polymerization stress and degree of conversion from a) overall view, and b) close view of the sample mounting region (data acquisition devices and spectrometer not shown): (a) cantilever-beam holder; (b) cantilever beam (stainless steel, 6.36 mm width, 6.35 mm height, 24.5 cm length with effective beam length ranging from 6 cm to 20 cm); (c) upper collet holder; (d) flat metal target; (e) probe of the sensor; (f) base stand; (g) curing light guide; (h) NIR cable holder; (i) X-Y stages; (j) upper collet; (k) upper quartz rod; (l) lower quartz rod; (m) lower collet; (n) sample encased by polytetrafluoroethylene sleeve; (o) NIR optical fibers. c) schematic of cantilever beam configuration for polymerization stress measurement.