Dial indicator

A dial indicator is a precision measuring instrument used in metrology to measure small distances or displacements with high accuracy. It is also known as a dial gauge, test indicator, or plunger dial. Dial indicators consist of a spindle, a plunger, and a dial face that displays the measurement in

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Test indicator

A dial test indicator, also known as a lever arm test indicator or finger indicator, has a smaller measuring range than a standard dial indicator. A test indicator measures the deflection of the arm, the probe does not retract but swings in an arc around its hinge point. The lever

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MEASURING SPREAD

There are two main ways of measuring the degree of spread of a set of measurements: the range and the standard deviation. Range The range of a set of measures is simply the difference between the largest and the smallest measurement value.Thus, for example, if you have a set of

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Sine bar

A sine bar is a device used to measure angles in metals. It consists of a hardened ground body with two precision ground cylinders attached at the ends. The distance between the centres of the cylinders is accurately controlled, the top of the bar is parallel to a line through

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Protractor gauge

A protractor gauge is a measuring instrument used to measure angles with a high degree of accuracy. It is commonly used in various industries, including machining, carpentry, and engineering. Protractor gauges come in various designs and types, including digital and analog versions. The most basic form of a protractor gauge

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Surface Plates

Surface plates are large, flat, precision ground plates used as a reference surface for measuring, marking out, and inspecting precision components in metrology. Surface plates are typically made of granite, cast iron, or steel, and are designed to be very flat and stable, with a high degree of accuracy. Surface

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Depth gauge

Depth gauge

A depth gauge is a measuring instrument used to determine the depth of holes, slots, and other features in a material. It is commonly used in engineering, machining, and carpentry applications. Depth gauges are available in various types and designs, including digital and analog versions. The simplest form of a

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Gauge block

A gauge block is a precision measuring tool used in metrology to measure the accuracy and calibration of other measuring instruments, such as micrometers, dial indicators, and coordinate measuring machines. Gauge blocks are also known as slip gauges, Jo blocks, or Johansson gauges, named after their inventor, Carl Edvard Johansson.

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Test Indicators vs. Dial Indicators

Test indicators are pretty distinct from dial indicators. The immediately obvious difference is that test indicators have lever-type contacts, while dial indicators have plunger-type contacts. Test indicators are also smaller and lighter than dial indicators. In general, the two tools are used in different applications, although there are areas of

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Caliper

There are different types of calipers ranging from the simple to the most sophisticated. Some calipers are also classified by scale and others by their specific use. THere is the most common classification of calipers : Vernier caliper A vernier caliper is an instrument used for making very accurate linear

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