Electronic sensor device for detecting the vibration related to an amplification system within stringed musical instruments

An electronic sensor device for detecting the vibration related to an amplification system within stringed musical instruments of the type which include a saddle mounted into a saddle slot of a bridge which is mounted onto the outside of a sound board;

• one end of a string of a musical instrument is stretched over a saddle;
• on the inside of a sound board, is a bridge reinforcing plate, such that a bridge reinforcing plate is immediately under the bridge separated by the sound board;
• a pickup assembly is detachably mounted on the inside of a sound board and partially extends upwardly to a bottom of a saddle, the sensor device is comprised of;
• a fixed and mounted piezoelectric element for each string, which is configured to convert string vibrations into electrical signals, each piezoelectric element is connected to a metal capped rod, wherein from top to bottom each integrally formed metal capped rod includes a rod portion with a top, and a cap portion with a top annular shoulder, and a bottom piezo receiving cavity, for each piezo-electric element the piezo receiving cavity is adapted to receive in abutting fashion the top of the piezoelectric element, and b) wherein the top of the rod portion is well coupled in abutting relationship with a bottom of the saddle below a saddle slot, and the top annular shoulder of the cap portion is located in well coupled abutting relationship with a bridge reinforcing plate, such that induced vibration from a string is transmitted through a sound board through the bridge reinforcing plate and onto the top annular shoulder of the metal capped rod, and vibration from a string is also transmitted through the saddle to the top of the metal capped rod wherein the metal capped rod transmits and carries vibrations from the saddle and also from the sound board via the bridge reinforcing plate to the piezo electric element.