Työntömitat

Työntömitat, commonly known as calipers in English, are precision measuring instruments used to measure the external and internal dimensions of an object, as well as depth. They consist of a main scale and a sliding jaw that moves along the main scale. The sliding jaw typically has a vernier scale or a digital display to allow for more precise readings than the main scale alone.

The basic principle of operation involves placing the jaws around or within the object being measured. For external measurements, the outer jaws are used. For internal measurements, the inner jaws are employed. Depth measurements are taken using a thin rod that extends from the sliding jaw. The reading is then taken by observing the position of the sliding jaw on the main scale and the vernier or digital display.

Työntömitat come in several types, including vernier calipers, dial calipers, and digital calipers. Vernier calipers rely on a finely divided scale for precise readings. Dial calipers use a dial indicator for a more easily readable measurement. Digital calipers offer the most convenience, displaying the measurement directly on an LCD screen.

These instruments are widely used in various fields, including manufacturing, machining, engineering, woodworking, and even in hobbies requiring accurate measurements. The accuracy of a työntömitat can vary, with higher precision instruments used for critical applications. Proper care and calibration are essential to maintain their accuracy and longevity.