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Sine bar set up with one end raised on a stack of gauge blocksTrigonometric triangle with sides. The opposite side is perpendicular relative to AC axis.
A sine bar consists of a hardened, precision ground body with two precision ground cylinders fixed at the ends. The distance between the centers of the cylinders is precisely controlled, and the top of the bar is parallel to a line through the centers of the two rollers. The dimension between the two rollers is chosen to be a whole number (for ease of later calculations) and forms the hypotenuse of a triangle when in use.
When a sine bar is placed on a level surface the top edge will be parallel to that surface. If one roller is raised by a known distance, usually using gauge blocks, then the top edge of the bar will be tilted by the same amount forming an angle that may be calculated by the application of the sine rule.
The hypotenuse is a constant dimension—(100 mm or 10 inches in the examples shown).
The height is obtained from the dimension between the bottom of one roller and the table's surface.
The angle is calculated by using the sine rule (a trigonometric function from mathematics). Some engineering and metalworking reference books contain tables showing the dimension required to obtain an angle from 0-90 degrees, incremented by 1 minute intervals.
A sinebar consists of a hardened, precision ground body with two precision ground cylinders fixed at the ends. The distance between the centers of the...
conjunction with accessories such as a square, straight edge, gauge blocks, sinebar, sine plate, dial indicator, parallels, angle plate, height gauge, etc. Granite...
Gratings with sine wave profiles are used extensively in optics to determine the transfer functions of lenses. A lens will form an image of a sine wave grating...
calibration of measuring equipment used in machine shops, such as micrometers, sinebars, calipers, and dial indicators (when used in an inspection role). Gauge...
Creates the Sine Institute of Policy and Politics American University, Washington, DC, September 24, 2018 "President Sylvia Burwell Announces Sine Institute...
number is called a phase factor. The trigonometric functions cosine and sine of angle θ may be defined on the unit circle as follows: If (x, y) is a point...
A type of television news screen layout LBAR may refer to: Limited area sine transform BARotropic, track model used by the Tropical cyclone forecast model...
of the most common waveforms produced by the function generator are the sine wave, square wave, triangular wave and sawtooth shapes. These waveforms can...
originator of video programming transmits SMPTE color bars together with a continuous 1,000 Hz sine wave before sending program material, in order to assert...
even more robustly to sine-wave gratings that are placed at specific angles in their receptive fields than they do to edges or bars. Most neurons in the...
the expected value is used instead of the mean. If the waveform is a pure sine wave, the relationships between amplitudes (peak-to-peak, peak) and RMS are...
by Leonhard Euler and Carl Friedrich Gauss, among others. The lemniscate sine and lemniscate cosine functions, usually written with the symbols sl and...
or q̄ for quisque and its inflections ("every", "each") s, s̅, or s̄ for sine ("without") x, x̅, or x̄ for exceptus and its inflections ("except") Note...
period, especially due to Aryabhata (sixth century CE), who discovered the sine function, cosine function, and versine function. When during the Middle Ages...
It is characterized as an irregular waveform. Ideal waveforms, such as a sine wave, are one line thick, but in the case of a stream the width must be taken...
Paitamahasiddhanta, however, specifies an initial sine-value of 225 (although the rest of its sine-table is lost), implying a trigonometric radius of...
identity of spherical trigonometry: all other identities, including the sine rule, may be derived from the cosine rule: cos a = cos b cos c + sin...
"0 VU" when a 1 kHz sine wave tone is applied for 300 milliseconds. When using a VU meter, the audio system is calibrated with a sine wave tone at a "reference...
"Sine from Above" is a song by American singer Lady Gaga and English musician Elton John from the former's sixth studio album, Chromatica (2020). It is...
ordered to pay him €90,000 in damages. Siné launched a rival paper called Siné Hebdo [fr] which later became Siné Mensuel [fr]. In 2009, Philippe Val resigned...
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