Thickness Measurement Through Hole Measurement Blind Hole Measurement
Through Hole Measurement Blind Hole Measurement Shaft Diameter Measurement
(Round Head) (Lever Head)
Outer Diameter/Thickness Measure Hole Straightness Measurement Hole and Shaft Matching Measurement
Taper Measurement Squareness Measurement Centerline Distance Measurement
Crossing Hole Center Distance Measure Comprehensive Taper Measurement Internal & External Multi-diameter Measurement
0 -S0 is the viscosity of the characteristic curve, when the measurement gap is very small, due to the impact of air viscosity, the characteristic curve was significant convex non-linear section, this part is generally not used.
The S0-S1 segment is the linear range of the characteristic curve, called the straight line, and the slope of the line is the sensitivity of the air gauge. This section is the available part of the air gauge.
S1-S2 is a concave non-linear segment after the straight line, the slope of each point on the curve is smaller than the slope of the straight line, and it is a variable. In general, it is not necessary. If it is necessary to measure the relatively large gap, also can use, but need to be amended to ensure the accuracy of the measurement.
After the S2 level has been beyond the sensitivity of the probe range, Px is the residual pressure in the chamber, it is independent of the measurement gap,therefore can not be used.
The air gauge is a length measuring tool consisting of a air length probe, a display, an air filter and a regulator. The air gauge measures the measured value by measuring the amount of pressure change due to the measured workpiece and injection hole. When the distance between the injection hole and the workpiece is reduced, the air pressure increases and the flow rate decreases.
Advantages of air gauge:
1. Non-contact non-destructive measurement, long life of probe.
2. High measurement accuracy, good stability
3. Measuring speed, high measuring efficiency
4. Low cost, easy maintenance