Accelerometer probe construction

A project log for Open Source FFT Spectrum Analyzer

An FFT spectrum analyzer for machinery vibration analysis, using open source hardware and software

Ariel QuezadaAriel Quezada 06/07/2016 at 14:030 Comments

The accelerometer and the Arduino Nano fit together inside a plastic probe (camera film canister). A strong magnet is also included inside, so the probe can be attached very firmly to different parts of a rotating machine and measure its vibration.

The accelerometer breakout board is soldered to a perforated board and three capacitors are connected and soldered, one to every analog output form the ADXL335. Header pins are placed at the sides of the board and arranged so this pins fit inside single line sockets soldered on the Arduino Nano, instead of the regular connector headers.