Sensorfield offers multiple motion-sensing options. These are based on ultra-compact MEMS sensor chips with integrated three-axis accelerometers and three-axis magnetometers. These sensors are designed to capture vibration, motion, and magnetic field changes with high precision.
Several configurations are available. The standard version measures vibration frequencies up to 800 Hz. Optional variants extend performance to 25 kHz and beyond. Magnetometer data can be acquired at frequencies up to 100 Hz. Vibration and magnetic field data can be measured simultaneously across all three axes.
The sensing electronics are mounted on a very small circuit board, enabling a range of rugged form factors and specialized applications. The standard form factor is a solid, epoxy-filled cube measuring less than one inch on a side. Extremely strong embedded magnets make the device virtually indestructible and allow it to attach securely to any ferrous surface without brackets or fasteners. Once installed, the sensor resists sliding or movement even under severe vibration, such as that generated by large industrial pumps or rotating equipment.
Another version is an ultra-small dongle that plugs directly into the transmitter’s universal sensor port. This allows fast and compact installation where space is limited.
All Sensorfield transmitters include an embedded three-axis accelerometer. The data can be used to detect changes in tilt, sway, or vibration when the transmitter is mounted directly to an object. This capability is especially useful for monitoring remote infrastructure such as power line poles, where gradual tilt, wind-induced oscillation, or sudden movement may indicate structural damage, fire exposure, or loss of anchoring.
The extremely small form factor of the Nano transmitter allows it to be mounted directly on moving machinery. One application is a unique method for monitoring oilfield beam pumps. When installed on the walking beam, polished rod hanger, or Pitman arm, onboard firmware uses streaming accelerometer data to monitor pump activity and overall equipment health in near real time.
Magnetometer data enables additional positioning and motion-tracking applications. One example, described in a case study, uses magnetic sensing to accurately detect and track valve position as it moves through its operating range.