Suunto Comet Active Explorer compact compass manufactured by Suunto. One of the world leaders in the design and manufacture of devices for sports, tourism and recreation. The compass is a combination of a liquid compass, a thermometer, a ruler and a weather severity table compiled in one case by the wind-cold index.
Suunto Comet Active Explorer compact compass with thermometer, ruler and weather severity table by wind-cold index, overview.
the compass is filled with a non-freezing liquid, which damps sharp fluctuations of the magnetic needle with a decorative disk fixed on top of it. Reduces spontaneous rotation and helps the arrow to quickly come to a calm state. The arrow itself is mounted on an agate micro-bearing and balanced for operation in the northern hemisphere.
The north end of the arrow of any compass points to the north magnetic pole, however the magnetic field vector is not directed strictly parallel to the surface of the earth. The compass needle, which is not in its geographical area, will be located at a noticeable angle to the horizon. For example, in Europe, the direction vector to the north magnetic pole is tilted down from the horizon, and Australia, on the contrary, up from the horizon. In order for the compass needle to show accurate data to it and give it horizontal stability, that is, balance.
If we take the above example, then the southern end of the compass needle for Europe needs to be heavier, and for Australia easier. Thus, balancing the weight of the arrow, the vertical deviation of the magnetic vector. If such balancing is not performed, then in an unstable position, or with any slight inclinations, one of the ends of the compass needle will constantly fall down. Thus, deploying it and giving incorrect testimonies, which can greatly complicate its practical application.
In Suunto mechanical compasses, balancing is implemented in one of two ways. The first is a two-zone system (the zone of the northern hemisphere and the zone of the southern hemisphere), when the zones overlap by several degrees. The second is a single global system in which one arrow is balanced so that it works anywhere in the world. It should be noted that in a calm and strictly horizontal position, even an unbalanced arrow shows the direction to the north correctly in any compass, unless of course it itself is working.
The ruler on the front side of the compass Suunto Comet Active Explorer will come in handy when working with a map or help you make some measurements. The thermometer will show the ambient temperature and facilitate the use of a weather stiffness table by the wind-cold index located on the back of the compass.
Concept of weather stiffness.
Weather severity is a term that refers to a person’s sensations while being exposed to cold and wind (wind-cold index). The severity of the weather is measured in conventional temperature equivalent, that is, degrees Celsius. In practice, this allows you to evaluate and compare the subjective sensations of a person from being in conditions with a different combination of temperature and wind power, leading them to a single equivalent.
Impressions of using the Suunto Comet Active Explorer compass.
In general, the Suunto Comet Active Explorer compass is a fairly convenient compass keychain. Its main advantages are small dimensions, simplicity of the device, constant readiness for action and trouble-free operation.