The principle and characteristics of the stress tester in the ampoule

Ampoule internal stress tester is suitable for the determination of internal stress in pharmaceutical glass containersUsually glass is an isotropic homogeneous material, when there is stress, it will behave heterogeneously, resulting in birefringence of
light.
It is suitable for pharmaceutical enterprises to detect the stress value
of ampoules, vials, oral liquid bottles, infusion bottles and other pharmaceutical bottles.
Polarizing stress gauges are instruments
that apply the principle of polarized light interference to check the stress inside the glass or the effect of crystal birefringence.
Ampoule internal stress tester test principle: Using the principle of polarized light interference to check the internal stress of glass, the instrument mainly achieves the superposition of polarized light through crystal birefringence, so as to distinguish the residual stress part on the glass bottle
.
The instrument is equipped with sensitive color chips and applies the 1/4 wave plate compensation method for quantitative testing, so this instrument can not only measure the residual internal stress of glass qualitatively or semi-quantitatively according to the interference color sequence in the polarization field, but also accurately measure the quantitative value
of the internal stress of the glass 。 Technical characteristics of ampoule internal stress tester: 1.
Full color LCD display, touch screen operation, convenient and fast, simple and intuitive; 2.
Qualitative and quantitative test modes, a variety of detection tests can be carried out; 3.
The instrument directly outputs the test results, no need to think of calculation; 4.
150mm super large light range, can test all kinds of large and small bottles, especially suitable for testing medical infusion bottles, vials, ampoules, etc
.