TE Connectivity 8911: Integrated LoRaWAN Wireless Accelerometer for Advanced Vibration Monitoring
The TE Connectivity 8911 is a fully integrated, battery‑powered wireless accelerometer designed for high‑precision vibration monitoring. It combines a piezoelectric sensor, a data collector, digital signal processing (DSP), and a LoRaWAN radio into a single, compact module.
Key specifications include a ±50 g dynamic range, 100 mV/g sensitivity, and a bandwidth exceeding 10 kHz, with 12‑bit measurement resolution. The LoRaWAN protocol enables long‑range transmission and robust immunity to external interference, making it ideal for extending condition‑based maintenance to areas where wired solutions are impractical.
The onboard DSP performs real‑time FFT analysis, transmitting the eight most significant acceleration peaks to existing process control and information systems.
8911 block diagram (Source: TE Connectivity)
The sensor is housed in a corrosion‑resistant stainless steel case with an IP66‑rated O‑ring seal and a protective plastic cover. Its standard mounting footprint and stud size facilitate quick installation on both existing and new machinery. Operating temperature ranges from –20 °C to +60 °C, and the device is powered by a replaceable CR123 battery.
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