impulse period मीनिंग इन हिंदी

The detent is a detached escapement; it allows the balance wheel to swing undisturbed during most of its cycle, except the brief impulse period, which is only given once per cycle ( every other swing ).
Its advantages are ( 1 ) it is a " detached " escapement; unlike the cylinder or duplex escapements the balance wheel is only in contact with the lever during the short impulse period when it swings through its center position and swings freely the rest of its cycle, increasing accuracy, and ( 2 ) it is a self-starting escapement, so if the watch is shaken so that the balance wheel stops, it will automatically start again.