The stopwatch is a special device that can measure time very accurately, up to a split second. Often they are used for measurements with an accuracy of 100th of a second. Now the era of the development of modern technology has come. This made it possible to measure time as accurately as possible.
Stopwatch Origin History
It all started with the advent of primitive watches, which have appeared since time immemorial. At first there was a sundial, then water, sand, and also a fiery clock was used. But they were good at knowing what time it was now, but they were in no way suitable for obtaining more accurate data. Measurements of this kind always gave an error of several minutes, or even up to 30 minutes.
If we talk about a little more modern clockworks, they were invented by Christian Huygens in 1657, who was from Holland. The inventor first came to thought and realized it with the help of a pendulum. In the first Huygens devices, the daily error rate did not move forward for more than ten seconds. So slowly the evolution of the watch was taking place. However, they could not be compared with a stopwatch, despite the accuracy.
When electronics began to develop actively, the appearance of electronic stopwatch became logical. This invention has become a favorite tool for physical education lessons for physical education. Therefore, we can say with confidence that every student is familiar with this device.
Further, with the development and spread of computers, stopwatch evolved into programs that can also measure a period of time with maximum accuracy. There are even online versions of devices.
Description of the mechanical stopwatch SOPpr 2a 3 000
The presented stopwatch has a mechanical principle of operation, it is single-needle. The work of the internal mechanism is interrupted. With it, you can easily measure such time periods as: minutes, seconds and even fractions of a second.
The division price of the stopwatch is 0.2 s. The scale here is sixty seconds. The model is also equipped with a thirty-minute counter; its division price is one minute.
A feature of the device is that 15 ruby stones are installed in it, while the caliber is 42 millimeters. The developers also installed in it an spring-type motor on the anchor stroke and an oscillating balance system. As for the oscillation period, it is 0.4 seconds.
In order to make it easier for the user to control the hands, the developers equipped the SOPpr 2a 3,000 mechanical stopwatch with a special lever-type device of simplified action. To start the mechanism, as well as stop it or return the arrows to zero, you must click on the plant head in series. At the same time, the mechanical stopwatch SOPpr 2a 3,000 operates at one spring plant for approximately eighteen hours. The device (dial) is covered with an enamelled white layer, and the hands and numbers are black.
As for the accuracy class of this model, it is the third. For thirty minutes, a slight error of ± 1.6 is allowed. The stopwatch can be operated at temperatures from -20 degrees Celsius to +40.
The advantages of the described device
The following advantages of the described stopwatch can be distinguished:
- it provides manual control of the timing;
- the clockwork is interrupted if necessary;
- due to the fact that this stopwatch is single-button, it is very convenient to use it;
- time with such a device is measured not only in seconds, but also in minutes and even fractions of a second;
- thanks to ruby stones, it was possible to achieve maximum data accuracy;
- the device works from a full spring plant for almost 19 hours, and this is convenient for the user;
- metal chrome case looks stylish and protects from damage;
- usually sellers of mechanical stopwatch SOPpr 2a 3,000 give customers a one-year warranty on the device.
As you can see, there are many advantages to this device, which you will definitely enjoy.
Where is the stopwatch used?
Currently, mechanical stopwatch SOPpr 2a 3 000 are used in the following areas:
- In sports training, if it is not about power sports. The device is necessary in order to measure the length of time needed by the athlete to overcome the distance and so on.
- In factory and research laboratories.
- In the laboratories of schools, universities, technical schools and other educational institutions.
Also, the device is used by many housewives in everyday life. You can not do without it in military affairs, when it is necessary, for example, to detect the time of flight of a projectile in order to calculate the moment of the target’s destruction.
Stopwatch is an integral part in the life of many people. Thanks to this invention, life can be streamlined and understand how much time it takes.