Cycle per second operation. Thus, one becquerel is one event per second "on average", whereas one hertz is one event per second on a regular cycle. Cycle can also be a unit for measuring usage of reciprocating machines, especially presses, in which cases "cycle" refers to one complete revolution of the mechanism being measured (i.e. the shaft of a reciprocating engine). Cycle per second The cycle per second was a once-common English name for the unit of frequency now known as the hertz (Hz). The plural form was typically used, often written cycles per second, cycles/second, c.p.s., c/s, ~, or, ambiguously, just cycles.
Control of Vibration at Work Regulations 2005 is the maximum amount that an employee can be exposed to in a day. The values are measured using a formula which works out the average (A) exposure over an 8-hour day. The values are therefore written as A(8). The rate of vibration of a tool or piece of machinery is then measured in metres (m) per second (s) and written as m/s². In order to help employers calculate the exposure levels using the formula, the Health and Safety executive created an exposure calculator. Regulation 5 requires any employer who exposes employees to risk from vibration to make a 'suitable