Speed sensors use magnets or optical sources to capture rotational or linear speed. Typically, they are used as gear-tooth speed sensors or are incorporated into stroboscopes or tachometers.

[Mike] built a sensor rig to measure projectile speed. The setup uses a tunnel with two sensors in it. Each consists of a laser diode on one side focused on a photodiode in the other. The two are ...

DT Swiss TRACKR SPEED by Wahoo adds a rechargeable rear-hub speed sensor for compatible DICUT and SPLINE road and gravel ...

High-speed CMOS image sensors are available in several types for a variety of markets, for use in general purpose, high end or custom high-speed cameras. Such cameras can be used for applications like ...

As the cost of components and pumps becomes more affordable, variable speed pumps are being used to increase the efficiency and reliability of water distribution systems in multi-story buildings.

Low-cost wireless sensors are replacing the century-old practice to determine when a concrete pour has properly cured. Stoneway Concrete sells Giatec concrete sensors to contractors and uses them in ...