Accelerometer

Acceleration Sensor for speaker cabinets and related components

Use this handy tool along with the ATB test set to measure the vibrations of cabinets, terminal plates, and almost anything that will rattle or buzz.

Acceleration Sensor

The acceleration sensor is used to measure vibrations on speaker cabinets, car bodies, or machine parts. Acceleration measures the actual substance vibrations only and not the air sound waves. During the measurement, the vibrations are transmitted to the sensor casing. In the casing, there is an electret foil, whose mass works against that of the casing. Thus creating a voltage that relates to the casing vibration.

Measuring

The sensors are not gauged, and the shown amplitudes are not defined values. The measurable frequency range is 30Hz – 3KHz. The sensor shows the frequency of the vibration and by comparing you can suppress the vibrations by choice.

Mounting

The sensor is fixed to the measurement object with two-sided sticky tape.

Connection

The sensor is connected to the microphone input of the soundcard via a 3.5mm plug. Here the sensitivity has to be increased by turning on the Mic- boost or microphone amplifier in the system control.

Note – There is no software sent with this device. You must use your existing measurement system and change out the microphone for the accelerometer.

It will not work with XLR mixer as the 24V is too high for this device

It is not known at this time if an adaptor for USB mics will work.