Howtosignalprocessing
- How do you measure flatness?
- How do you manually measure flatness?
- Which instrument is used to measure flatness?
- How is CMM flatness measured?
How do you measure flatness?
Using a Dial Gauge
Set the dial gauge so that its measuring part comes into contact with the measurement surface. Move the target so that the measurement surface is evenly measured, and read the dial gauge values. The largest deviation value is the flatness.
How do you manually measure flatness?
In application, one way to physically measure flatness is to use a height gage, as we can see in Figure 2. To use the height gage correctly, the part to be measured is first placed upon 3 columns with adjustable heights. Then, the height gage is run across the surface while looking at the amplitude of the needle.
Which instrument is used to measure flatness?
Flatness Gauge
A flatness gage is a dial indicator type instrument used to measure lap plate flatness. It consists of a gauge body with two contact feet at one end and one vertically adjustable foot at the opposite end.
How is CMM flatness measured?
The flatness of the optically flat surfaces are measured by techniques using the CMM stylus. The stylus can be operated or programmed to take specific, accurate measurements along the surface of the object and compare the data automatically to produce a report on the flatness of the object.
