Vibration sensor

The piezoelectric film is one of the earliest application of violin pickup. Later, Gibson Guitar Company made saddle string code string code installed in the pickup launched a series of acoustic guitar with piezoelectric film. This pickup is very high fidelity leads to a series of vibration sensor and acceleration meter application.

Musical instrument pickup

At present, the piezoelectric film is picked up in the guitar

There are four design schemes for the application of the sound device:

The first kind is thick film, compression type

Force type (under string code) design;

The two is a low cost accelerometer.

The other two are contact microphones,

One is a saddle wrapped in a string code.

In shape, the other is glued to the instrument

The pickup. Due to the low value of Q self resonant no ceramic pickup.

Please take a look at the folding scheme of figure 57. The hot side is a slightly narrow electrode on the inside. Because shielding is made of piezoelectric material, folding technology can provide higher pick up sensitivity than other shielding methods. The traditional shielding layer can be made of multilayer piezoelectric film, viscose and shielding foil easily.

Machine monitoring

The high fidelity of the shielded piezoelectric film sensor in the instrument has led to the development of the vibration sensors used in the machine monitoring. In its simplest mode, a piezoelectric film vibration sensor is basically like a dynamic strain gauge. The piezoelectric fi