Dial indicators (measuring heads) can be divided into two main groups according to the method of obtaining results: analog (with a circular scale) and electronic (with a digital readout device).
Digital indication in clock-type indicators makes it possible to quickly and accurately read the measured value of a part, since the measurement result is immediately displayed on the screen and there is no need to visually check the intermediate values on the scale, as is the case with analog indication.
Analog indication in clock-type indicators has its advantages in that it allows for smooth changes in readings in accordance with the size of the part. This type of measurement is applicable when measuring in dynamic mode, for example, when determining axial or radial runout.
Indicators with a division price of 1 or 2 μm are ideal for precision measurements of part wear.
Digital indicators have many additional functions compared to analog models, provide relative measurements, and can be connected to a computer.
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