Mechanical watch movement away from the bottom when the sound within the main components of the collision escapement system, such as gear and escapement escapement fork watts, fork lever escapement and quadrant nail, fork escapement between head and disk screws, these parts watch the work will result in collisions, which make noise. Theory, also known as 3 collisions, but also in the balance each time period are instantly followed by shock occurred.
The other will be from the bottom of gossamer sound clip in between the swing speed and Marina, gossamer in the contraction and expansion of the tremor, and the second tip of the jitter. (Center seconds watch) watch escapement abnormal tooth move rapidly, especially now that the frequency of watches are basically 28800A / H, so we can only hear about the “ticking” sound.
Watch when the sound is going to change, the change is mainly derived from two reasons: watch full strings and strings of time off and change the location. Watch the full string sound when walking more vigorous and effective, off the strings would faint over time; position changes will cause the wheels inside the watch movement, the shaft and the bearing friction between the tongue and changes in the state, especially balance. There are also caused by gravity and friction to their position with the gap changes, the most important of these factors have led to the swing changes.
If we watch carefully affixed to the ear to listen, watch and leave a good voice should be rapid and uniform, some watches can also hear the second issued by the tip due to jitter, “just” the sound. In the early days when an experienced teacher always should watch repair tables attached ears, shaking his head changes in posture, listen to the sound watch walking the changes in travel time to speculate watch good or bad, “listen to the table to listen to sound and music listening “through listening to the table to determine the results and the failure, it is also the experience and skill. Watch trained chefs, to hear the watch put lun oscillation frequency, and even hear is a “rough stopwatch” to.
For the layman speaking, the easiest way to watch or listen to the essence, in fact, listen to watch the change in location, change the sound travel time, required changes as small as possible. The faulty or damaged parts of watches, will change with the location, travel time also will significantly change the sound. Others are periodically change the sound for a freshman will be small. Listen to the location of the table, to choose when to wear a common position, that is flat, flat, including “dial disk surface and under the table”, there are three elevations, which are under the table to table to the left, put on the table, a total of five positions.
Listening watch is of course the experience, the best can do more, that is, to listen more and more to practice, go watch different dimensions are not the same when the sound is generally said, Male voices to the table a little older, women form more than the small. It is worth mentioning is that some men and not necessarily on the table with the male table movement, that is, it may use a small movement of the female form, female form of travel time is indeed a very weak voice the need for a relatively quiet environment we go.
Watch now testing the quality of a professional instrument will be used, called “School tables Miriam,” “School tables Miriam” is actually picked up with a microphone when the sound of a watch to go to it and the standard signal for comparison, and record or display out. Swiss remember reading “School table apparatus,” the English description, opening is a motto, which means: “the most sophisticated equipment can not replace human intelligence, it only provides a means to understand natural phenomena,” said makes sense. Ancient Chinese Yiyun: wind listening, you can hear two miles away, so it was not his ear, wisdom is only good use of the material world only.
I touch type Pong pass, see a doctor with a stethoscope, they think of hearing loss hearing aids can be used to listen to electronic watches, it’s a microphone attached directly to the watch glass, tried it, better than direct use of the ear to listen to clear N times, hard of hearing people can listen to true beyond even the quartz and quartz watches generally can be heard like that movement, in fact, school table apparatus also watch walking sound amplification, such that it also with a headset or speaker.
