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In imprecise colloquial usage, some speakers extend this even to dial calipers, although they involve no vernier scale.

In machine-shop usage, the term "caliper" is often used in contradistinction to "micrometer", even though outside micrometers are technically a form of caliper.

A divider caliper is also used to measure a distance between two points on a map.

The two caliper's ends are brought to the two points whose distance is being measured.

On a nautical chart the distance is often measured on the latitude scale appearing on the sides of the map: one minute of arc of latitude is approximately one nautical mile or 1852 metres. An ECG (also EKG) caliper transfers distance on an electrocardiogram; in conjunction with the appropriate scale, the heart rate can be determined.

These calipers comprise a calibrated scale with a fixed jaw, and another jaw, with a pointer, that slides along the scale.

The distance between the jaws is then read in different ways for the three types.

These are "absolute" errors and absolute errors add, so the length reading is then bounded by plus/minus the length corresponding to the full width of the smallest interval on the Vernier scale (0.005 cm).

Assuming no systematics affect the measurement (the instrument works perfectly), a complete measurement would then read 2.462 cm ± 0.005 cm.

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