Vibration calibrator constant up to a maximum specified weight of test object. Older models can be used to calibrate objects weighing up to a maximum of approximately 100 g, whereas the latest instruments can work stably with test objects weighing over 500 g. Vibration calibrators are most often used for testing and checking vibration sensors and measuring instruments at the site of their operation and are, therefore, usually transportable and battery operated. The most commonly occurring vibration frequency of calibrators is 159.2 Hz, which is equivalent to a radian frequency of 1000 rad/s. The vibration displacement, velocity and acceleration of sinusoidal signals
Control of Vibration at Work Regulations 2005 to identify which of their employees may be at risk from hand arm vibration disorders (HAV) or whole body vibration disorders (WBV) Hand arm v disorders can be caused by the use of hand-held power tools and can cause painful and disabling disorders of the blood vessels, nerves and joints. The risk of suffering from a disorder is increased dependent on the exposure to vibration and can vary widely between individuals. The symptoms, which affect the blood supply to the fingers, are also known as vibration-induced white finger. Whole body vibration is transmitted via the seat when sitting down in