The GS-1 is a high sensitivity, self-generating velocity detector with extremely low natural frequencies. It is an excellent choice for detecting seismic activity for structural analysis, gelogic hazards, vibration isolation, etc.
GS-1 seismometers are available in 1.0 and 2.0 Hz natural frequencies, and vertical or horizontal oriented models. Sensitivities range from 3.0 to 15.0 V/in/sec depending on coil configurations. Optional weather resistant cover (w/level bubble), calibration coil and adjustable leg bases are available. A vernier spring adjustment is included.
Natural Frequency : 1.0 Hz } 10%
Orientation Angle : Vertical } 7.5, Horizontal } 0.5%
DC Resistance : 450 ohms } 5%, 4550 ohms } 5%, 17,400 ohms } 5%
Sensitivity (V/in/s) : 3.0 V/in/sec } 10%, 7.0 V/in/sec } 10%, 15.0 V/in/sec } 10%
Open Circuit Damping : .54 } 20%
Moving Mass : 700 grams } 5%
Coil Excursion : > .25 in. P-P
Operating Temperature : -40 to 100 C
Dimensions (Basic Unit) : Height: 6.45 in.
Diameter : 3.0 in.
Weigh t: 69 oz.
Shock : 50 G
Notes :
1. Specification temperature is 25 C.
2. Two Hz model also available.
Consult the factory for ordering information.
Seismic Detector Response Curve Output Vs. Frequency @ 450 Ohms.
Seismic Detector Response Curve Output Vs. Frequency @ 4550 Ohms.