Endevco, a division of PCB Piezotronics, has introduced its Modular 6DoF Sensor Family. Two new triaxial accelerometers, the Model 773A and Model 776, are designed to stack directly onto the Model 7330 triaxial angular rate sensor, giving engineers a compact six degrees of freedom (6DoF) measurement package they can configure to suit each test.
How the modular approach works
Each accelerometer measures translation in three axes (X, Y and Z), while the 7330 measures rotation in pitch, roll and yaw. Stacking one on the other gives a complete picture of motion from a single, small assembly. Because the accelerometer is chosen separately, engineers can match the measurement range to the job rather than accepting a fixed 6DoF configuration.
- Model 773A: a triaxial DC response accelerometer using variable capacitance MEMS technology, built for low-level acceleration. Ranges run from 8 g to 200 g with differential or single-ended output.
- Model 776: a triaxial piezoresistive accelerometer for shock and impact testing, with a 2,000 g range, multi-mode damping and minimal zero shift.
Endevco says the stacked assembly is smaller and lighter than traditional 6DoF configurations, which matters on small test articles where sensor mass and footprint can affect the result. An optional Model 7973 adhesive mounting plate makes installation and reuse simpler while keeping good coupling.
Key features
- Modular, stackable 6DoF configuration
- Flexible range selection across the accelerometers and angular rate sensor
- DC response and wide bandwidth for dynamic measurement
- Compact size and low mass
- Operating temperature from -40 to +105 °C (up to +125 °C for the 773A)
Applications
The family is aimed at vehicle dynamics and automotive safety testing (including rollover and ATD testing), aircraft flight testing, spacecraft and satellite testing, and missile testing. It complements the 6DoF and angular rate options already available through THP, including the DTS 6DX PRO sensor package and ARS PRO and ARS HG angular rate sensors, and pairs well with miniature data acquisition such as the SLICE NANO and MICRO and SLICE6 AIR. For shock work it sits alongside PCB’s wider range of accelerometers.
For UK programmes in aerospace and defence, the modular design gives a practical way to standardise on one 6DoF approach across tests with very different acceleration levels.
Talk to THP Systems
THP Systems supplies PCB Piezotronics and Endevco sensors to UK customers. Contact our team to discuss the Modular 6DoF family, range selection or mounting options for your next test.
Source: PCB Piezotronics
