Multi-Channel Telemetry Systems Series AT-7800 from Accumetrics offer 18-bit, high dynamic range customized measurement data from rotating shafts. Series AT-7800 systems acquire signals from a variety of sensors mounted on rotor components within large rotating machinery. Sensors most often utilized are strain gages, RTDs, accelerometers, and thermocouples, but the system can be adapted to a wide range of other sensors as well. The Multi-Channel Digital Telemetry System continuously digitizes these sensor signals and transmits them off the rotor using wireless digital telemetry technology.
Multi-channel telemetry systems are customized to meet the needs of specific applications. The number of sensors and the specific mix of sensor types may vary from system to system. The packaging configuration is also customized to best fit machine into which it is installed and according to customer needs.
Accumetrics telemetry systems use wireless power and digital data communication to form a robust solution for virtually any rotor instrumentation application. These systems operate independent of rotor position and speed. The absence of any mechanically wearable parts makes the systems long lasting, even under significant centrifugal loading and harsh environments.
Sensor signals are amplified, anti-alias filtered, and 18-bit digitized while on the rotor. A data stream of digital data is wirelessly transferred off rotor by close proximity RF transformer coils (even when the shaft is not rotating). The digital data streams are carried by a coaxial cable to the remote receiver for digital output or conversion to analog voltage.