Raised intraocular pressure (IOP) increases the risk of glaucoma. Eye-care professionals measure IOP to screen for ocular hypertension (OHT) (IOP>21 mm Hg) and to monitor glaucoma treatment.

Figure 1 shows that individual measurement values hover around a mean value and the difference between the mean value and true value is the systematic error of ...

When gathering a measurement using a spectroscopy instrument, the user wants to be confident in the result. Whether the technique is OES, XRF, or LIBS, or if thickness or composition are measured, the ...

In the region of the solar radiation/convection zone boundary 11, the electron temperature T e ≈ 2.1 × 10 6 K, the electron density n e ≈ 9 × 10 22 cm −3, and the iron opacity arises mainly from ...

Test instruments such as oscilloscopes and DMMs (digital multimeters) often let you get the measurement results you need with just the press of a button. But the number on a meter's display or the ...