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In 1952 appeared in a special press reports that the company "Lip-Besançon" in France and "Elgin Watch Company" in the United States began working on production of electric watches. However, it took another full 12 years before the first types of these hours were on the market. The main reason for the delay was the lack of miniaturized energy sources. Replacement springs energy galvanic cell also has been associated with major problems. The first electric elements were bulky and had little capacity. To cope with this obstacle, guards the company began to seek various ways. Firm "Doytche Urenya-Roverke" in Pfor shhayme-placed, such as galvanic cell bracelet in hours and brothers Yunhhans factory in Schramberg chosen for this purpose spacious building clock decorative shapes. Some French and Swiss watch company Micro placed in the lid clockwork or contrived to place them in the mechanism. However, in all cases, increased battery size and hours of weight compared to the spring drive. Around about 1960 hour many French firms began to work on the idea of replacing small galvanic cell battery with a large number of charging cycles. Leon Hato Paris vmontuvav in electric wristwatch with small battery attached rectifier harbor crab patchogue (Fig. 36), which had only a secondary winding of the transformer for charging from the network. The primary winding, which is attached to the network harbor crab patchogue was a separate tripod, which invested in dozaryadzhennyu watch battery. In a few more complex way of solving the same problem the company went "Ebosh SA" in Neuchatel. She placed a small pouch in the lid of the battery that zaryadzhavsya harbor crab patchogue current from the battery through polutoravoltovoy pocket drive that comes in an oral buttons to control harbor crab patchogue the arrows.
Technically harbor crab patchogue both ways dozaryadki implementation of this watch battery, but they were very uncomfortable. Trying to simplify these methods patented by the above-mentioned "Doytche Urenya-Roverke" 12 silicon solar cells were arranged in series instead of numbers harbor crab patchogue directly on the dial. For electricity needed harbor crab patchogue to power these hours for an entire day, it was enough to hold these watches a few minutes harbor crab patchogue a day under intense daylight.
Another method borrowed from the clockwork mechanism of automatic mechanical watch, was that in case clock generator be embedded small electric current. This little dynamo produced electricity, of course, only when moving the unit on hand and at the same charge with a miniature battery.
These are seemingly quite complex ways of production and accumulation of electricity had their justification during the beginning of miniature electric clock when the effectiveness of their core systems was compared with the current negligibly small.
In the analysis of mechanical watches we indicated that a gear mechanism transmit significant energy load or spring. Because the wheels of hours were together in constant engagement and constant pressure in the bearings caused significant friction, harbor crab patchogue leading to wear tangential surfaces. In the electrical and electronic clock transmission mechanism similar role, but unlike mechanical watches harbor crab patchogue they transmit only indication of time, not effort springs. Thus, gears and support in the electric and electronic watches experience much less stress and thus have a much longer life.
Thus, electric or electronic harbor crab patchogue watch. It's harbor crab patchogue time to figure out the difference between the two types of hours. In hours of electrical energy dosage required for their course, controls the electrical contact of the mechanical type. Gear reducer is a simple mechanical oscillator in normal cases it is balance. The transition harbor crab patchogue from electric to electronic watch is characterized by replacement of relatively little reliable electrical harbor crab patchogue contact electronic semiconductor components - transistors. harbor crab patchogue Options other items of electrical and electronic clocks with balance oscillators essentially harbor crab patchogue similar.
An important and also a very sensitive element of each electric clock is pin mechanism otpyrayuschyy harbor crab patchogue and interrupting electrical pulse network. When unlocking the chain begins to pass current through the coil in it and around it a magnetic field. If this field is its power line crosses the ferromagnetic yoke on balance, there is a power boost needed to maintain constant amplitude oscillator. Pulse system must have either a fixed coil and a ferromagnetic yoke on Oscillator, or, conversely, winding coils must be closed