What instrument do we use to measure the electrical and mechanical vibrations
A galvanometer is an instrument that is used to measure current or voltage. It can have a mechanical movement, ie a needle that moves round a scale, or it can be digital as many are now.
An electrical ammeter.
A multimeter is a common instrument used to measure electrical current. It can measure current, voltage, and resistance in electrical circuits.
Frequency counter
The wattmeter is an instrument to measure the electrical power.
a pressure transmitter is a devise to measure the mechanical pressure and convert in to electrical signal it may be 4~20mA or 0~10V
An Ammeter is used to measure electrical current, which is measured in Amperes (or Amps).
A seismometer is used to measure tremors or vibrations of the Earth's surface. This instrument can detect and record the movement of the ground caused by seismic waves resulting from natural events like earthquakes or man-made activities like explosions.
A cardiograph is an instrument designed to measure and record the electrical activity of the heart.
Hydrometer
A conductometer (conductivity meter) is an instrument designed to measure the electrical conductivity.
Either an ammeter or a galvanometer is.