A manometer is a device used to measure the pressure of a fluid by balancing it against a column of a liquid. Five different types of manometers are shown ..
Many hygroscopic (moisture absorbing) materials can be used as relative-humidity sensors. Such materials absorb or lose moisture until a balance is reached with ..
A dynamometer is a device used for measuring the torque and brake power required to operate a driven machine. Dynamometers can be broadly classified into ..
Any body with at least one measurable property that changes as temperature changes can be used as a thermometer. Such a feature is called a thermometric property. ..