Overview 概要
You typically use instances of NSUnit to represent specific quantities of frequency using the NSMeasurement class.
あなたは概してNSUnitのインスタンスを使用して、NSMeasurementクラスを使っている周波数の具体的な量を表します。
Frequency 周波数
Frequency is a quantity of occurrences for a repeating event over time.
周波数は、時間とともに繰り返す出来事に対する発生の量です。
The SI unit for frequency is the hertz (Hz), which is a derived as one occurrence per second (1 Hz = 1 / 1s).
The NSUnit class defines its base unit as hertz, and provides the following units, which are initialized using NSUnit converters with the specified coefficients:
Name 名前 |
Method |
Symbol |
Coefficient 係数 |
|---|---|---|---|
Terahertz |
THz |
|
|
Gigahertz |
GHz |
|
|
Megahertz |
MHz |
|
|
Kilohertz |
kHz |
|
|
Hertz ヘルツ |
Hz |
|
|
Millihertz |
mHz |
|
|
Microhertz |
µHz |
|
|
Nanohertz |
nHz |
|