LAMBDA
Lambda Infrasound Instrument
Product Overview
The standard product of the LAMBDA instrument is a very high dynamic range infrasound sensor with a flat frequency response from DC to 200 Hz. The transfer function for the instrument is accurately defined. It has a reproducible sensor transfer response both in amplitude and phase, very low Total Harmonic Distortion (THD). Remote calibration for response and detector gain without expensive equipment requirement, and is designed to minimise sensitivity to seismic signals.
Lambda Infrasound Instrument
Key Features
Instrument Characteristics
- Flat pressure response from 0.008333 Hz (120 sec) to 200 Hz. Optional pressure responses:
60 seconds to 300 Hz
30 seconds to 3000 Hz
- Analogue Sensitivity: 2*40 mV/Pa (differential) - other sensitivities are available
- Self-Noise: < 0.22 µPa2/Hz at 1 Hz (66.6 dB Pa2/Hz, relative to 1Pa)
- Exceptional Dynamic Range: >135 dB
- Lowest Spurious Resonance: 500 Hz Vertical and Horizontal motions
- Linearity measured at 1 Hz: -85 dB. THD for 1/4 Full-scale -66 dB
- Logic Control Lines: Calibration enable and Centre via serial interface
- Sensor Control Lines:
Calibration signal input
Calibration enable line
Calibration enable via serial port
- Calibration Signal Input Waveforms: Square, Sine, Step, Pulse with duty cycle and frequency control. Pseudo random signals can be injected to calibration the sensor.
- Waterproof as per IP68 standard
Enclosure
- Rugged housing made from 316 stainless steel material
- Weight 2.0 kg
- Dimensions: Case Diameter 7.5 cm, Case Height 18.5 cm
Power and Electronics
- Power consumption < 120 mW, within the operating range from 9 to 36 V
- Galvanically isolated analogue input stage of digitizer
- Input power is protected against reversed polarity
- Over voltage protection with transient suppression
To obtain a detailed data sheet for this instrument, please contact GaiaCode Headquarters
Disclaimer: The product specifications and the stated data are subject to change without prior notice.
