The SIGMA family of robust Force Balance Accelerometers rounds off Gaiacode's suite of seismic instrumentation. Based on a newly designed sensor with a truly rectilinear suspension of the inertial mass, SIGMA instruments have a flat response to ground motion over a very large frequency range. With their exceptional performance, SIGMAs are suitable for local and regional strong motion recordings and for earthquakes engineering applications.
Triaxial digital feedback accelerometer
Sigma Ʃ force feedback accelerometer is based on a truly rectilinear suspension system. Three axis strong motion accelerometer is housed in an ‘O’ ring sealed Hard Anodised waterproof Aluminium case.