What is a dial height gauge?
A dial height gage takes a dial caliper design and addes a precision ground base installed on it. A great way to have height gaging capability with a tool-box sized tool.
How do you read a dial height gauge?
How to Read a Height Gauge
- Lock the arm in place after positioning it on top of the piece being measured.
- Find the “zero” (“0”) on the vernier scale that traveled with the arm along the length of the shaft.
- Record the number on the vertical shaft that falls opposite or just below the zero marking on the vernier scale.
How do height gauges work?
A height gage is a measuring instrument in which a slider with a measuring stylus moves relative to a measuring scale on a beam and in which this motion is along a single vertical axis nominally perpendicular to a reference plane on the instrument base.
How do I know my gauge height?
This is done by mounting a test indicator to the scriber. Move the indicator to the surface and then zero the gauge. Press down softly on the base of the gauge, if the indicator moves, then the surface is not level. Check and re-clean both surfaces and perform the test again.
How accurate is a height gauge?
A typical height gauge is good to a thousandth (0.001″). A micrometer or electronic height gauge is accurate to a tenth (0.0001″) or sometimes even better. Second, if the height gauge’s arm that is used to measure how far up it travels is not square to the base, the height gauge will be less accurate.
How accurate is a micrometer?
A standard micrometer is capable of the same 1/1000-inch accuracy as the vernier calipers, and micrometers that incorporate a vernier scale are capable of measurements an order of magnitude more accurate: 1/10,000 of an inch.
Why are micrometers so accurate?
Like the vernier calipers, micrometers use the simple fact of arithmetic that 40 * 25 = 1000 to great advantage. Hence the 1/1000″ accuracy of a micrometer. There are versions of the micrometer that include a 10-division vernier scale on the sleeve of the tool.