If you are looking for a reliable clock to help you wake up in the morning then one of the most popular timepieces is the digital alarm. It was first patented back in late 1950’s but this device was more analogue than digital but it set the scene for the future. The next major developments came in the late 1970’s and early 1980’s when the advent of cheap electronics and microchips helped produce a number of new models on to the marketplace.
To view the range of Digital Alarms.
These modern timepieces use a seven segment display for each of the four digits and the most common displays are LED or LCD, the displays also show separate display elements for the alarm status and pm or am time. These displays are either 24 hour format or 12 hour format.
As digital alarms have evolved over the years the amount of technology has increased and the size of the alarms have got smaller with the ultimate in small digital alarm being thin travel alarms. As digital alarm have become more sophisticated the power consumption used to power these devices has decreased and most digital alarms are powered by batteries now. Some larger led digital alarms are still powered by main electricity.
Modern digital alarms timing mechanisms are run by quartz mechanism’s which makes them extremely accurate, digital alarm typically use the 50 or 60 hertz oscillation of AC power or a 32,768 hertz crystal oscillator as in a quartz clock to keep time. There are also models that have been designed which are radio controlled as well, this means that their time is set automatically by a radio signal which synchronises the time of the clock with the national radio signal.
Digital alarms have come along way since the first version appeared all those years ago and many manufacturers today make a wide range of digital alarms, with some of the sort after features including lcd display, ipod docking, dab radio and projection devices. Despite all these amazing features they still do the main job they were designed to do, which is to wake you up in the morning.