# 角度測定コンバーター

## 度などの変換を行うシンプルな傾斜測定単位コンバータです。

0717-4315-99

0717-4323-99

0729-1751-99

インターフェイスです。SPI
0729-1759-99

インターフェイス。RS-232

0729-1765-99

インターフェイス。アナログおよびRS-232
0703-1602-99

0737-0101-99

0729-1763-XX

インターフェイス。リレーとRS-232

0703-0711-99

0711-0763-99

0737-1203-99

0729-1760-04

インターフェイスRS-485

ラジアンは角度の単位で、角度の光線（辺）と円が交差し、その交点間の長さが円の半径と等しくなる角度と定義されている。

The milliradian, often denoted by the symbol mrad, is a unit of angular measurement that is ¹/₁₀₀₀ of a radian. Since a radian is the angle subtended by an arc equal in length to the radius of a circle, a milliradian is a much smaller unit, useful for precise measurements. In practical applications, milliradians are commonly used in ballistics, artillery, and in the adjustment of optical sights in shooting sports, where small angular adjustments are necessary for accuracy.

A micro-radian, denoted by the symbol µrad, is a unit of angular measurement equal to ¹/₁₀₀₀,₀₀₀ of a radian. Given its extremely small size, it is particularly useful in scientific and engineering fields that require extremely fine angular measurements, such as in the calibration of precision instruments, seismic studies, and astronomy. A micro-radian allows for the measurement of angles with high precision, which is crucial in applications where even tiny angular differences can be significant.

Often slope is calculated as a ratio of rise to run, or as a fraction (rise over run) in which run is the horizontal distance and rise is the vertical distance. This is where it’s easy to think of the right triangle, where tan(angle) = rise/run, and the grade is calculated by multiplying rise/run by 100.

Denoted by the symbol gon or sometimes grad, a gradian is a unit of angular measurement where a full rotation is divided into 400 parts, making each gradian equal to ¹/₄₀₀ of a circle. This means that 100 gradians correspond to a right angle. The gradian system is primarily used in fields like surveying and civil engineering, where it simplifies calculations involving right angles and is more intuitive for decimal division compared to degrees. Like degrees, gradians are not SI units but are accepted in some engineering contexts.

arcminute, minute of arc, or minute arc, は、1 度の 1/60 に相当する角度測定の単位です。同様に、1秒角（arcsecond）は、1秒角の1/60に相当する。1度は1回転の360分の1なので、1分角は1回転の21,600分の1、つまりπ/10,800ラジアンに相当する。天文学、検眼、眼科、光学、航海術、射撃術など、小さな角度を表現する単位を必要とする分野で使用されている。

この単位は、地質学的なモニタリングや天文学の分野で非常に有用である。しかし、これらの角度は非常に小さいことが多いため、アークミニッツやアークセコンドを使用する方が簡便である。

Millimeters per meter is a unit of measurement that refers to the rise (in mm) and run (in m). Specifically, it is the rise value in millimeters that occurs over one meter. It is frequently used in laser leveling and construction tool applications to refer to the accuracy of instruments that are designed to make level surfaces (or surfaces with a specific slope) over longer distances.

A Mil, also known as the NATO Mil or angular mil, is a unit of angular measurement used in military and artillery contexts. One Mil is defined as ¹/₆₄₀₀ of a circle, so there are 6,400 Mils in a full rotation. This unit is particularly useful for calculating range and target adjustments in indirect fire scenarios, such as artillery and mortars, as well as in the adjustment of sights on firearms. The NATO Mil system simplifies angular calculations and conversions in a military context, allowing for quick and practical field use.