Sine Bar Calculator

Formula

The formula to calculate the Gauge Block Height (GH) is:

\[ \text{GH} = \text{SBL} \times \sin(A) \]

Where:

\( \text{GH} \) is the gauge block height (mm)
\( \text{SBL} \) is the sine bar length (mm)
\( A \) is the angle of the block (degrees)

What is a Sine Bar?

A sine bar is a type of measurement device that, when used with a gauge block, can accurately determine angular measurements. This is typically used in machining practices to locate any work to a given angle. The angles are most often in units of degrees, minutes, and seconds.

Example Calculation

Let's assume the following values:

Sine Bar Length (SBL) = 100 mm
Angle of the Block (A) = 30 degrees

Using the formula to calculate the Gauge Block Height:

\[ \text{GH} = 100 \times \sin(30^\circ) = 100 \times 0.5 = 50 \text{ mm} \]

The Gauge Block Height is 50 mm.