Inspecting with Optical Comparators provides an overview of the optical comparator, which uses optics to project an enlarged, two-dimensional shadow of a part onto a glass screen for measurement of ...

Precision instruments often contain specialized components that are essential to their function, but nearly impossible to replace if they fail. [Andre] had just such a problem with an optical ...

Hackers frequently find themselves reverse-engineering or interfacing to existing hardware and devices, and when that interface needs to be a physical one, it really pays to be able to take accurate ...

The challenge is no longer just detecting fraud, but doing so consistently -- especially in ambiguous cases in high-stakes environments like border control, laboratories, and central banks, where it ...

The hardware and software changes should perk up decision makers at border agencies, forensic laboratories and central banks.