1 it can not used when the angle more than 45 degrees.....
To reduce the weight
Sine does not converge but oscillates. As a result sine does not tend to a limit as its argument tends to infinity. So sine(infinity) is not defined.
The sine of 22.5 degrees is 0.383
sine-1(0.3420201433) = 20 degrees
its short for sine. theres sine, cosine, and tangent. sine is opposite over adjacent for the sides of a triangle (or angles)
Relief holes are provided for easy handling of sine bar and for reducing the weight of the sine bar.
distance between the centre of two parallel cylinderin the sine bar
Relief holes are provided for easy handling of sine bar and for reducing the weight of the sine bar.
sine bar is used to measure the angles of given work pieces
See related links for information about sine charts.
To reduce the weight
A sine bar is an essential tool for measuring angles with high precision. When measuring a heavy component, the sine bar is placed on a flat surface, and the component is positioned against it. By adjusting the height of the component until it matches the desired angle, the sine bar's calibrated length can be used to calculate the angle through the sine function. This method ensures accurate angular measurements, even for large and heavy parts, by leveraging the simplicity of trigonometric relationships.
stbilized steel
What is the angle of a workpiece if a 3.2003 gage block stack is used with a 10 sine bar?
its a type of sine bar . it is used in metrology lab .from this equipment we can find tapered angle of a conical spcimen
1degree
Machinist Hand Book