Guralp Systems Limited
MAN-MIN-0001 - Güralp Minimus - Technical Manual

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1. Preliminary Notes 2. System Overview 3. System description 4. Getting started 5. Advanced system configuration 6. GüVü app 7. Advanced troubleshooting 8. Appendix 1 – Instrument/channel names 9. Appendix 2 – Minimus network ports 10. Appendix 3 – Connector pin-outs 11. Appendix 4 – Güralp Discovery installation 12. Revision History

Section Index: 8.1. Minimus' internal sensors 8.2. Analogue Instruments 8.3. Digital Instruments

Chapter 8. Appendix 1 – Instrument/channel names

The tables in this section show the names and codes of the streamed channels along with the record names and channel codes for recorded data. The first character “x” in miniSEED channel code represents the sample rate. The possible values are shown in the table below:

F

≥ 1000 Hz to < 5000 Hz

C

≥ 250 Hz to < 1000 Hz

H

≥ 80 Hz to < 250 Hz

B

≥ 10 Hz to < 80 Hz

M

> 1 to < 10

L

≈ 1

The “Data record names” of the seismic channels and MEMS accelerometer channels are preceded by the caption “sd_consumer0” or “sd_consumer1”. This notation distinguishes between the two different sample rates that is possible to select for each recorded channel.

Note: Throughout this section, the letter n in italic script is used to indicate the Instrument number, which is a small integer used to identify the signal source. This is always zero ('0') for the Minimus' own internal sensors and for the first analogue instrument.

For Minimus units, Instruments 1, 2, … 8 are external Radian instruments in a string sharing a digital connection. Instrument 1 is the digital instrument closest to the Minimus.

 For Minimus+ units, Instrument 1 is the second analogue sensor. Instruments 2, 3, … 9 are external Radian instruments in a string sharing a digital connection. Instrument 2 is the digital instrument closest to the Minimus+.

8.1 Minimus' internal sensors

Sensor

Comp.

Data streaming

Data recording

Digital filter mode

Live stream name

Live Stream code

Data record name

Mini
SEED
channel code

MEMS accelerometer

Vertical

Acausal

Sensor0AccelZRough

0AXLZ0

sd_consumer0(Sensor0AccelZRough)

xNZ

sd_consumer1(Sensor0AccelZRough)

xNZ

North

Acausal

Sensor0AccelNRough

0AXLX0

sd_consumer0(Sensor0AccelNRough)

xNN

sd_consumer1(Sensor0AccelNRough)

xNN

East

Acausal

Sensor0AccelERough

0AXLY0

sd_consumer0(Sensor0AccelERough)

xNE

sd_consumer1(Sensor0AccelERough)

xNE

Magnetometer

Z

Acausal

Sensor0MagnetZRough

0MAGZ0

sd_consumer(Sensor0MagnetZRough)

xFZ

Y

Acausal

Sensor0MagnetNRough

0MAGN0

sd_consumer(Sensor0MagnetNRough)

xFN

X

Acausal

Sensor0MagnetERough

0MAGE0

sd_consumer(Sensor0MagnetERough)

xFE

Long-term average for Z, Y and X MEMS channels

Vertical

Acausal

Sensor0XLTAvgZLowLat

0LTXZ0

North

Acausal

Sensor0XLTAvgNLowLat

0LTXX0

East

Acausal

Sensor0XLTAvgELowLat

0LTXY0

Short/long-term average for Z, Y and X MEMS channels

Vertical

Acausal

Sensor0XSLAvgZLowLat

0SLXZ0

North

Acausal

Sensor0XSLAvgNLowLat

0SLXX0

East

Acausal

Sensor0XSTAvgELowLat

0SLXY0

Short-term average for Z, Y and X MEMS channels

Vertical

Acausal

Sensor0XSTAvgZLowLat

0STXZ0

North

Acausal

Sensor0XSTAvgNLowLat

0STXX0

East

Acausal

Sensor0XSTAvgELowLat

0STXY0

Voltage

Acausal

Sensor0VoltageRough

0VINI0

sd_consumer(Sensor0VoltageRough)

xYV

Humidity

Acausal

Sensor0HumidBRough

0HUMB0

sd_consumerSensor0HumidBRough)

xIO

Temperature

Precision temperature

Acausal

Sensor0TemprCRough

0TMPC0

sd_consumer(Sensor0TemprCRough)

xKO

First derivative of temperature

Acausal

Sensor0TemprDRough

0TMPD0

xKD

Internal Clock

Internal clock offset from GNSS

Acausal

ClkGpsOffsetRough

0CGPSO

sd_consumer(ClkGpsOffsetRough)

xEO

Clock GNSS period rough

Acausal

ClkGpsPeriodRough

0CGPSP

sd_consumer(ClkGpsPeriodRough)

xEF

Internal clock DAC frequency pulling

Acausal

ClkDacFreqPullRough

0CVDAC

sd_consumer(ClkDacFreqPullRough)

xED

Test internal clock drift

Acausal

ClkTestPbpSRough

0CTSTB

sd_consumer(ClkTestPpbSRough)

xEB

Internal clock offset from PTP

Acausal

ClkPtpOffsetRough

0CPTPO

sd_consumer(ClkPtpOffsetRough)

xEP

Delay MS

Acausal

ClkPtpDelayMSRough

0CPDMS

sd_consumer(ClkPtpDelayMSRough)

xEA

Delay SM

Acausal

ClkPtpDelaySMRough

0CPDSM

sd_consumer(ClkPtpDelaySMRough)

xEB

Mean path delay

Acausal

ClkPtpMeanPathDelay

0CPMPD

sd_consumer(ClkPtpMeanPathDelay)

xEC

8.2 Analogue Instruments

The italicised n in the codes is always set to zero ('0') for the first analogue instrument.  For Minimus+ units, it is set to 1 for the second analogue sensor. There is an Auxiliary input on each of the analogue sensor inputs on a Minimus+ and the streams from these are similarly identified by a 0 or 1.

Sensor

Comp.

Data streaming

Data recording

Digital filter mode

Live stream name

Live Stream code

Data record name

Mini
SEED
channel code

Analogue seismic sensor

(velocimeter or accelerometer)

Vertical

Acausal

SensornSeismoZSmooth

nVELZ0

or

nACCZ0

sd_consumer0(SensornSeismoZSmooth)

xHZ

or

xNZ

SensornSeismoZSmooth

nVELZ2

or

nACCZ2

sd_consumer1(SensornSeismoZSmooth)

xHZ

or

xNZ

Causal

SensornSeismoZLowLat

nVELZC

or

nACCZC

North

Acausal

SensornSeismoNSmooth

nVELN0

or

nACCN0

sd_consumer0(SensornSeismoNSmooth)

xHN

or

xNN

SensornSeismoNSmooth

nVELN2

or

nACCN2

sd_consumer1(SensornSeismoNSmooth)

xHN

or

xNN

Causal

SensornSeismoNLowLat

nVELNC

or

nACCNC

East

Acausal

SensornSeismoESmooth

nVELE0

or

nACCE0

sd_consumer0(SensornSeismoESmooth)

xHE

or

xNE

SensornSeismoESmooth

nVELE2

or

nACCE2

sd_consumer1(SensornSeismoESmooth)

xHE

or

xNE

Causal

SensornSeismoELowLat

nVELEC

or

nACCEC

Auxiliary input

Acausal

SensornSeismoXSmooth

nXCHAN0

sd_consumer(SensornSeismoXSmooth)

xYF

Analogue seismic sensor mass positions

Vertical

Acausal

SensornIntZRough

nVELM8

or

nACCM8

sd_consumer(SensornIntZRough)

xYZ

North

Acausal

SensornIntNRough

nVELM9

or

nACCM9

sd_consumer(SensornIntNRough)

xYN

East

Acausal

SensornIntERough

nVELMA

or

nACCMA

sd_consumer(SensornIntERough)

xYE

Long-term average for Z, N and E seismic channels

Vertical

Acausal

SensornLTAvgZLowLat

nLTAZ0

North

Acausal

SensornLTAvgNLowLat

nLTAN0

East

Acausal

SensornLTAvgELowLat

nLTAE0

Short/long-term average for Z, N and E seismic channels

Vertical

Acausal

SensornSLRatZLowLat

nSLRZ0

North

Acausal

SensornSLRatNLowLat

nSLRN0

East

Acausal

SensornSLRatELowLat

nSLRE0

Short-term average for Z, N and E seismic channels

Vertical

Acausal

SensornSTAvgZLowLat

nSTAZ0

North

Acausal

SensornSTAvgNLowLat

nSTAN0

East

Acausal

SensornSTAvgELowLat

nSTAE0

8.3 Digital Instruments

Digital instruments can be attached to the Minimus in a chain. The lowest number instrument is the one which is closest to the Minimus. One a Minimus, this is Instrument 1.  For Minimus+ units, it is Instrument 2.

Sensor

Comp.

Data streaming

Data recording

Digital filter mode

Live stream name

Live Stream code

Data record

name

MiniSEEDchannel code

Seismometer (velocity or acceleration response)

Vertical

Acausal

SensornSeismoZSmooth

nVELZ0

or

nACCZ0

sd_consumer0(SensornSeismoZSmooth)

xHZ

or

xNZ

SensornSeismoZSmooth

nVELZ2

or

nACCZ2

sd_consumer1(SensornSeismoZSmooth)

xHZ

or

xNZ

Causal

SensornSeismoZLowLat

nVELZC

or

nACCZC

North

Acausal

SensornSeismoNSmooth

nVELN0

or

nACCN0

sd_consumer0(SensornSeismoNSmooth)

xHN

or

xNN

SensornSeismoNSmooth

nVELN2

or

nACCN2

sd_consumer1(SensornSeismoNSmooth)

xHN

or

xNN

Causal

SensornSeismoNLowLat

nVELNC

or

1ACCNC

East

Acausal

SensornSeismoESmooth

nVELE0

or

nACCE0

sd_consumer0(SensornSeismoESmooth)

xHE

or

xNE

SensornSeismoESmooth

nVELE2

or

nACCE2

sd_consumer1(SensornSeismoESmooth)

xHE

or

xNE

Causal

SensornSeismoELowLat

nVELEC

or

nACCEC

Digital seismic sensor mass position

Vertical

Acausal

SensornIntZRough

nINTZ0

sd_consumer(SensornIntZRough)

xYZ

North

Acausal

SensornIntNRough

nINTN0

sd_consumer(SensornIntNRough)

xYN

East

Acausal

SensornIntERough

nINTE0

sd_consumer(SensornIntERough)

xYE

MEMS accelerometer

Vertical

Acausal

SensornAccelZRough

nAXLZ0

sd_consumer0(SensornAccelZRough)

xNZ

sd_consumer1(SensornAccelZRough)

xNZ

North

Acausal

SensornAccelNRough

nAXLN0

sd_consumer0(SensornAccelNRough)

xNN

sd_consumer1(SensornAccelNRough)

xNN

East

Acausal

SensornAccelERough

nAXLE0

sd_consumer0(SensornAccelERough)

xNE

sd_consumer1(SensornAccelERough)

xNE

Magnetometer

Z

Acausal

SensornMagnetZRough

nMAGZ0

sd_consumer(SensornMagnetZRough)

xFZ

Y

Acausal

SensornMagnetNRough

nMAGN0

sd_consumer(SensornMagnetNRough)

xFN

X

Acausal

SensornMagnetERough

nMAGE0

sd_consumer(SensornMagnetERough)

xFE

Yaw

Acausal

SensornRotYawRough

nROTY0

sd_consumer(SensornRotYawRough)

xYY

Pitch

Acausal

SensornRotPtchRough

nROTP0

sd_consumer(SensornRotPtchRough)

xYP

Roll

Acausal

SensornRotRollRough

nROTR0

sd_consumer(SensornRotRollRough)

xYR

Long-term average for Z, N and E seismic channels

Vertical

Acausal

SensornLTAvgZLowLat

nLTAZ0

North

Acausal

SensornLTAvgNLowLat

nLTAN0

East

Acausal

SensornLTAvgELowLat

nLTAE0

Long-term average for Z, Y and X MEMS channels

Vertical

Acausal

SensornXLTAvgZLowLat

nLTXZ0

North

Acausal

SensornXLTAvgNLowLat

nLTXX0

East

Acausal

SensornXLTAvgELowLat

nLTXY0

Short/long-term average for Z, N and E seismic channels

Vertical

Acausal

SensornSLRatZLowLat

nSLRZ0

North

Acausal

SensornSLRatNLowLat

nSLRN0

East

Acausal

SensornSLRatELowLat

nSLRE0

Short/long-term average for Z, Y and X MEMS channels

Vertical

Acausal

SensornXSLAvgZLowLat

nSLXZ0

North

Acausal

SensornXSLAvgNLowLat

nSLXX0

East

Acausal

SensornXSTAvgELowLat

nSLXY0

Short-term average for Z, N and E seismic channels

Vertical

Acausal

SensornSTAvgZLowLat

nSTAZ0

North

Acausal

SensornSTAvgNLowLat

nSTAN0

East

Acausal

SensornSTAvgELowLat

nSTAE0

Short-term average for Z, Y and X MEMS channels

Vertical

Acausal

SensornXSTAvgZLowLat

nSTXZ0

North

Acausal

SensornXSTAvgNLowLat

nSTXX0

East

Acausal

SensornXSTAvgELowLat

nSTXY0

Temperature

Acausal

SensornTemprARough

nTMPA0

sd_consumer(Sensor1TemprARough)

xKO

PreviousNext

1. Preliminary Notes 2. System Overview 3. System description 4. Getting started 5. Advanced system configuration 6. GüVü app 7. Advanced troubleshooting 8. Appendix 1 – Instrument/channel names 9. Appendix 2 – Minimus network ports 10. Appendix 3 – Connector pin-outs 11. Appendix 4 – Güralp Discovery installation 12. Revision History