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Posted on Oct 13, 2020
The digital height gauge does exactly what its name suggests - it measures the height of the workpiece. A digital altimeter is a gauge in which a stylus slide moves relative to a gauge scale on a rod and moves along a single vertical axis that is nominally perpendicular to the reference plane on the instrument base.
Digital height gauges are typically used on a granite slab to measure and / or describe the properties of a part from a reference plane. Generally, a stylus, test pointer, touch probe or CMM probe is used to locate the measured item. Digital altimeters are an essential quality control tool.
There are several types of mechanical and electronic height gauges to choose from, depending on your business needs and budget.
Mechanical digital altimeters
Mechanical digital altimeters have been used in flat panels for many years. There are three basic types of mechanical altimeters:
:: Read more : How to Manufacture Precision Mechanical Components
Electronic digital altimeters
Electronic digital altimeters can be divided into three different groups.
The first group has accuracies similar to mechanical digital altimeters. They usually have an inch / meter ratio, which is absolute zero and a floating zero, and a data output.
The second group contains all the features of the first group. However, the accuracy of the tool is an order of magnitude better and can have additional functions such as tolerance setting, ID / OD measurement, max / min, TIR and probe compensation.
In general, the last group has all the characteristics of the second group and a higher accuracy rating. Most digital height gauges in this class have air bearings, a motorized probe system, the ability to generate and save part programs, and a computer interface that enables SPC. You can also measure a part feature in two dimensions by rotating the part. Use these digital altimeters when higher levels of accuracy are required or to reduce CMM requirements.
Digital altimeters can be used to determine the height of an object or workpiece with extremely high accuracy and precision.
These precision gauges also provide marked positions on the object relative to the reference plane for later use.
Center to center distances, inside / outside diameters and step heights are some of the different measuring tasks that can be performed with highly specialized digital height gauges.
They claim consistency to be ± 0.0001 inch and can be extremely precise down to 0.001 inch. Of course, the consistency and precision of such instruments still depends on their overall quality. Therefore, it is important to only get one of the reputable manufacturer sites like eleymet.com.
High-quality, hardened stainless steel forms the body of the digital height gauge. To ensure the rigidity and stability of the instrument, the digital altimeter is made of solid cast iron. It also has a strap that extends from the base and includes a printed scale in both metric and imperial formats.
The metric scale usually ranges from zero to 300 millimeters, and the imperial scale from zero to 12 inches. With some digital height gauges, metric and digital scales can measure up to 2,000 mm or 80 inches.
The beam is also equipped with an electronic caliper equipped with Power ON / OFF, HOLD, TOL, SET, MM / CALE, ON / OFF / ZERO and ABS buttons.
The hard metal slider is on one of the jaws. The included ripper can slide up and down along the scale with the slide and be locked in place.
A fine knob is used for final adjustment to lock with the second adjusting screw. Send data to a printer or computer
The process of using the digital altimeter to take measurements is outlined below:
The actual measuring process can be started as soon as the cleaning and preparation are completed. Here are the steps to get it right:
After the measurement, remove the jaws so that they can be cleaned with a cloth soaked in cleaning oil and dried. You can use a clean, dry cloth before storing the instrument in its case.
It is important to maintain a temperature of 5 to 40 degrees Celsius during storage or use. The protective sticker must not come into contact with any water liquid.
Finally, prevent damage to the electronics, such as circuit overload, for example by never applying voltage or engraving the depth gauge parts with an electric pen.
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