What is the unit of code and does it have anything to do with the speed?

The imperial unit of length, the US yard is equal to the meter, and in the UK, 1 yard is equal to the distance between the horizontal line mark on the two gold stoppers of the bronze rod kept in the Westminster Department of Commerce Standards.

Of course, there is a relationship between the speed of the car when it is in gear.

Rotational speed refers to the number of times an object moves in a circular motion per unit of time, with the symbol n"Denote.

r s** seconds) or r min** minutes), also expressed as rpm (to minutes, mainly used by Serikno in Japan and Europe).

Introduction

The maximum rotational speed is the maximum value that can be achieved under certain conditions. For example, the speed of the motor spindle in the hard disk, that is, the maximum speed that the hard disk platter can achieve under normal working voltage conditions.

It is one of the key factors that determine the internal transfer rate of the hard disk, which directly affects the speed of the hard disk to a large extent. The faster the speed of the hard disk, the faster the hard disk can find files, and the transfer speed of the hard disk of the phase family macro pair is also improved.

The international standard unit of speed is rps ** seconds) or rpm ** minutes), and it is also expressed as rpm (rpm, mainly used by Japan and Europe, and China uses international standards). The machine is superscripted rpm because it is an international standard unit.

Rotational speed (or rev) is the number of turns (different from frequency) that an object in a circular motion makes around the center of the circle in a unit of time. Common speeds include rated speed and maximum speed.

The speed of the hard disk is expressed in the number of revolutions per minute, and the unit is expressed as rpm, which is the abbreviation of pure revolutions per minute, which is revolutions per minute. The higher the rpm value, the faster the internal transfer rate, the shorter the access time, and the better the overall performance of the drive.

Rotational speed refers to the number of times an object moves in a circular motion during a single hail position, with symbols"n"Denote. Its international standard unit is r s ** seconds) or r min ** minutes), and it is also expressed as rpm (to min, mainly adopted in Japan and Europe).

Our country adopts international standards).When the unit is r s, it is numerically equal to the frequency, i.e. n=f=1 t, where t is the period of circular motion, and "hertz" is the unit of frequency. "revolutions per second" can be seen as "how many revolutions per second".

For example, n revolutions seconds means that 1 second has been revolutionized n revolutions, i.e. frequency f = speed nIt can be seen as:

1 hz = 1 r/s 。