MSI performs online monitoring to help troubleshoot problems with rotating machinery. Often the best opportunity to diagnose issues is during transient events such as start-ups, shut-downs, load changes, or other variations in operating conditions. MSI routinely captures data from a variety of sensor types during these transient events, or during routine operation, to draw conclusions about machinery health and identify problem behavior.
The most commonly used sensor type is the accelerometer. These are typically mounted on bearing housings, machinery casings, and other key locations where operational forces interact with system components. MSI also uses proximity probes to capture shaft vibration and migration, either by tapping into existing instrumentation (e.g. Bently-Nevada) or by temporarily installing our own. Other sensors commonly used include tachometers to measure shaft speed; pressure transducers (static or dynamic), flow meters, or Pitot tubes to measure flow conditions; thermocouples; microphones; strain gages to measure shaft torque or casing/piping deformation; current clamps; and more.
Our fleet of data acquisition equipment is capable of measuring up to hundreds of channels at sampling rates of up to 204.8 kS/s to capture frequencies up to 80 kHz. Data collection times can range from a few minutes to several months depending on the situation. We maintain an extensive fleet of sensors, including for specialty applications such as high temperature environments, submersed applications, extreme pressures, and toxic or corrosive conditions. If we don’t already have the instrumentation needed for your application, we’ll arrange to rent supplementary equipment.