Absolute and incremental measurements differ in detecting machine reference points:
1. Absolute measurement: Absolute measurement can directly measure the position of the reference point of the machine tool, usually using the measurement system on the machine tool to measure.
Absolute measurement provides precise coordinate values and is therefore suitable for machining operations that require high-precision positioning.
2. Incremental measurement: incremental measurement is to detect the position of the reference point of the machine tool through relative comparison.
Incremental measurements are usually made with sensors such as grating scales or encoders that provide information about the relative position of the machine's motion axes.
Incremental measurements are slightly less accurate than absolute measurements, but in some cases they are more flexible and convenient to use.
In summary, absolute measurement and incremental measurement have different application scenarios and accuracy requirements when detecting machine tool reference points. Depending on the specific processing needs and equipment conditions, the appropriate measurement method can be selected.