SENSORS AS PIANO STRINGS: THE ULTIMATE ENDURANCE TEST
Nonwearing hammer heads
In contrast to those of acoustic pianos, the ALPHA Piano's hammer heads are practically nonwearing: The striking of the felted hammer occurs not on the usual two or three strings, but rather on pressure sensors that were specially developed for the ALPHA Piano and represent an entirely novel way of taking up the strike energy of the hammers. What is decisive for the playing feel is the fact that these sensors perform like piano strings. Through them, the force of the hammer's strike and the resistance at the strike point are determined. This works as in a traditional grand piano, in which the force of the hammer's strike thereby determines the volume.
316,000 Fortissimo Strikes in One Hour
A little insight into our development department for the sensor piano: This is the hardest test that a finished action has to pass—once everything has been finely regulated, every key is played 3600 times in one hour. The strikes are so strong that the 30-millimeter-thick keybed bends as much as 5 mm. Anything that survives this torture will live forever.