Guralp Systems Limited
MAN-C24-0001 - CMG-CD24 Operator's Guide

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1. Introduction 2. Setting up the CD24 3. Configuration & Control with Scream! 4. CD24 5. Command line interface 6. Updating the CD24 7. Appendices 8. Revision history

Section Index: 4.1. Calibration methods 4.2. Noise calibration with Scream!

Chapter 4. Calibrating the CD24

4.1 Calibration methods

Sensors attached to the CD24 can be calibrated using the built-in signal generator. There are three common calibration techniques used.

Further information about calibration is available on the Güralp Systems Web site.

4.2 Noise calibration with Scream!

A connected instrument can be calibrated using the digitiser's pseudo-random broadband noise generator, along with Scream!'s noise calibration extension. The extension is part of the standard distribution of Scream! and contains all the algorithms needed to determine the complete sensor response in a single experiment.

4.2.1 Sensor response codes

Sensor

Sensor type code

Units
(V/A)

CMG-40T-1 or 6T-1, 1s – 50Hz response

CMG-40_1HZ_50HZ

V

CMG-40T-1 or 6T-1, 1s – 100Hz response

CMG-40_1S_100HZ

V

CMG-40T or 6T, 2s – 100Hz response

CMG-40_2S_100HZ

V

CMG-40T or 6T, 10s – 100Hz response

CMG-40_10S_100HZ

V

CMG-40T or 6T, 20s – 50Hz response

CMG-40_20S_50HZ

V

CMG-40T or 6T, 30s – 50Hz response

CMG-40_30S_50HZ

V

CMG-40T or 6T, 60s – 50Hz response

CMG-40_60S_50HZ

V

PreviousNext

1. Introduction 2. Setting up the CD24 3. Configuration & Control with Scream! 4. CD24 5. Command line interface 6. Updating the CD24 7. Appendices 8. Revision history