Presentation is loading. Please wait.

Presentation is loading. Please wait.

Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Status of the Acoustic Calibration System for KM3NeT.

Published byCecil James Modified over 7 years ago

Similar presentations

Presentation on theme: "Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Status of the Acoustic Calibration System for KM3NeT."— Presentation transcript:

1 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Status of the Acoustic Calibration System for KM3NeT

2 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 The deep sea acoustic positioning system The acoustic positioning is a mandatory subsystem for the detector providing: 1)Acoustic guide during the deployment of the telescope structures and infrastructures 2)Optical module position during the telescope operation Requirements: relative positioning accuracy: <20 cm (less than PMT diametre) absolute positioning accuracy: <1 m to optimize pointing resolution no interference with the optical detectors easy installation data acquisition/transmission system compliant with KM3NeT electronics

3 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Key elements of the deep sea acoustic positioning system Key elements for the Acoustic Positioning System (APS) -Auto-calibrating Long Baseline of acoustic transceivers anchored in known and fixed positions. -Array of acoustic sensors (hydrophones) moving with the Detection Unit mechanical structure -Auxiliary devices: compasses, CTD, sound celerimeters, current metres -Data analysis system on-shore Hydrophone position calculation TDoA (Time Difference of Arrival) T Emit (LBL) – T Receive (Hydrophone) Geometrical Triangulation Hydrophone position calculation TDoA (Time Difference of Arrival) T Emit (LBL) – T Receive (Hydrophone) Geometrical Triangulation LBL transceivers Detection Unit Hydrophone

4 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Proposed Acoustic Positioning System for the KM3NeT Many inputs from ANTARES and NEMO experiences Goals: - Reduced costs compared to the used commercial systems - Better resolution - Use of data for Earth and Sea Science and studies for acoustic detection Many inputs from ANTARES and NEMO experiences Goals: - Reduced costs compared to the used commercial systems - Better resolution - Use of data for Earth and Sea Science and studies for acoustic detection LBL transcievers and hydrophones phased and syncronous with GPS time Transceivers frequency range : 25÷45 kHz for relative positioning 10÷20 kHz for absolute positiong, ROV navigation and DU deployment Unique and changeable acoustic signal for each LBL transceiver (frequency, amplitude) Received signal sampled continuously at high frequency (  200 kHz, 16/24 bits) All data to shore for processing LBL transcievers and hydrophones phased and syncronous with GPS time Transceivers frequency range : 25÷45 kHz for relative positioning 10÷20 kHz for absolute positiong, ROV navigation and DU deployment Unique and changeable acoustic signal for each LBL transceiver (frequency, amplitude) Received signal sampled continuously at high frequency (  200 kHz, 16/24 bits) All data to shore for processing

5 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Proposed Acoustic Positioning System for the KM3NeT Minimal autocalibrating LBL (autonomous or cabled) Definitive autocalibrating LBL (connected to KM3NeT shore clock) LBL transceivers on JB or DU bases Hydrophones on the DU storeys Minimal autocalibrating LBL (autonomous or cabled) Definitive autocalibrating LBL (connected to KM3NeT shore clock) LBL transceivers on JB or DU bases Hydrophones on the DU storeys Autonomous LBL Absolute positioning - Triangulation of LBL with a GPS linked acoustic array (fish) onboard a ship - Use LBL surface echo to measure transceiver depth Preliminary

6 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Acoustic data rate “All data to shore” philosophy Hydrophone frequency range:few Hz < f < 70 kHz ADC dynamic range24 bits (18÷20 bits effective) ADC sampling frequency192 kHz (96 kHz optional) Master clock time GPS time added off-shore (25 ns resolution) Data ProtocolStandard AES3-EBU Acoustic data transmission rate32 bits @ 192 kHz  6.2 Mb/s (1 hydro) payload: 2 Hydros = 12Mb/s, fully sustainable Hydrophone frequency range:10 kHz < f < 50 kHz for positioning few Hz < f < 70 kHz for physics and Sea science ADC dynamic range16 / 24 bits ADC sampling frequencyabout 200 kHz Master clock time added off-shore or on-shore Requests Tested solution

7 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Principle of the hydrophone data acquisition chain ADC Storey Control Module Adds GPS Time Sends Acou-data to shore On-Shore Storey Control Module Data Parsing Associated science Acoustic Positioning Acoustic Data Server ADS Hydros + preamps OMs optical fiber link Point to point storey connection Full data analysis on shore with dedicated hardware and/or software Data acquisition onshore: The Storey Control Module onshore parses the Acoustic data from the data Stream Acoustic Data are reconstructed and distributed to clients by the ADS using professional Audio Borads (present working solution for few storeys – a la NEMO). Full data analysis on shore with dedicated hardware and/or software Data acquisition onshore: The Storey Control Module onshore parses the Acoustic data from the data Stream Acoustic Data are reconstructed and distributed to clients by the ADS using professional Audio Borads (present working solution for few storeys – a la NEMO). Ethernet

8 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Principle of the hydrophone data acquisition chain ADC Storey Control Module Adds GPS Time Sends Acou-data to shore On-Shore Ethernet Storey Control Module Data Parsing Associated science Acoustic Positioning Ethernet switch Hydros + preamps OMs optical fiber link Ethernet Full data analysis on shore with dedicated hardware and/or software Data acquisition onshore: The Storey Control Module onshore parses the Acoustic data from the data Stream Acoustic Data are distributed to clients via Ethernet (possible solution for KM3NeT) Full data analysis on shore with dedicated hardware and/or software Data acquisition onshore: The Storey Control Module onshore parses the Acoustic data from the data Stream Acoustic Data are distributed to clients via Ethernet (possible solution for KM3NeT) Point to point storey connection

9 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Hydrophones and Preamps – the NEMO experience SMID hydrophones and preamps (+ 38 dB gain) Sensitivity and pressure calibration measured and certified by NATO – URC (La Spezia) SMID hydrophones and preamps (+ 38 dB gain) Sensitivity and pressure calibration measured and certified by NATO – URC (La Spezia) Radiation lobe 30 kHz 50 kHz Hydrophone + preamplifier moulded in deep sea cable 7.5 m length Hydrophone sensitivity calibrated at NATO - URC (40 hydrophones) Measured differences ≤ ±2 dB Relative Hydrophone sensitivity variation with hydrostatic pressure at 20 kHz 300 Bar 400 Bar Measured variations ≤ ±1 dB

10 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Hydrophones and Preamps – the Erlangen experience Adopt design of Acoustic Modules (AMs), used successfully in AMADEUS as part of ANTARES Design allows for integration of acoustic sensors into pressure housing of photo sensors to form Opto-Acoustical Modules (OAMs) Adopt design of Acoustic Modules (AMs), used successfully in AMADEUS as part of ANTARES Design allows for integration of acoustic sensors into pressure housing of photo sensors to form Opto-Acoustical Modules (OAMs) Piezo sensor + preamplifier

11 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Hydrophones and Preamps – the Erlangen experience Advantages: No need for additional mechanical structures No need for additional cable feedthrough No exposure of sensor to pressure and other environmental conditions  safer and less expensive than hydrophones Advantages: No need for additional mechanical structures No need for additional cable feedthrough No exposure of sensor to pressure and other environmental conditions  safer and less expensive than hydrophones Disadvantages: Reduced angular acceptance (possibly more than one sensor per module needed for multi-purpose applications) Reduced sensitivity compared to hydrophones (dedicated preamplifier currently under design) Electromagnetic noise from PMTs may cause interference (under investigation) Disadvantages: Reduced angular acceptance (possibly more than one sensor per module needed for multi-purpose applications) Reduced sensitivity compared to hydrophones (dedicated preamplifier currently under design) Electromagnetic noise from PMTs may cause interference (under investigation)

12 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Hydrophones and Preamps – the Erlangen experience ch0 Angular acceptance: ~ ± 70 deg  = 0 o φ

13 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Acoustic data sampling and transmission Digital Audio signal output Digital audio data (out) clock, reset (in) Already implemented for 4 channels Power to preamps The Acoustic Board design is based on commercial audio professional components: ADC Stereo 24 bit/192 kHz Max input 2 V RMS AES3-EBU compliant data format power 160 mA @ 5.3VDC Devices are driven by 24.576 MHz Clock from the SCM (for 192 kHz sampling rate) The Acoustic Board design is based on commercial audio professional components: ADC Stereo 24 bit/192 kHz Max input 2 V RMS AES3-EBU compliant data format power 160 mA @ 5.3VDC Devices are driven by 24.576 MHz Clock from the SCM (for 192 kHz sampling rate) 11 cm SCM off-shore - adds GPS time to the audio data stream - Drives the acou-board Optical link shore-sea Analog signal inputs from preamps SCM on-shore - Distributes the GPS time to theoff-shore electronics - Parses audio data to on-shore clients Acoustic Board

14 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Amplitude response and electronics noise of the system Electronics Noise Assuming a Beacon pulse of 32 kHz180 dB re 1 µPa @ 1m For the SMID / NATO hydrophones and the INFN DAQ Preliminary

15 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Time synchronization measurements SCM on-shore SCM off-shore Inserts time in acoustic data Optical link Signal generator Acou Board preamp Trigger Signal Time of Trigger known (accuracy < ns ) Sinusoidal wave Measurement of offshore electronics latency = 166 ± 1 µs  75 ns delay with respect to trigger signal 1 us Average = 166.1 us 10 kHz < f < 80 kHz Preliminary  < 100 ns 1 µs is conservatively assumed to take into accout hydrophone latency, dimensions etc..

16 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Implementation of the LBL transceivers SMC on-shore SMC off-shore Optical link Signal Emission Board Acou Board preamp Trigger Time of trigger known (accuracy < ns ) Signal to transmitters FFR SCM on-shore Transmits GPS time Sends user trigger Sends user commands and settings SCM off-shore Inserts time in acoustics data Interfaces commands and trigger to SEB Signal Emission Board RS-232 connection from shore allows to: Set amplitude to emit Set frequency to emit Set repetition rate SCM on-shore Transmits GPS time Sends user trigger Sends user commands and settings SCM off-shore Inserts time in acoustics data Interfaces commands and trigger to SEB Signal Emission Board RS-232 connection from shore allows to: Set amplitude to emit Set frequency to emit Set repetition rate Digitized Data Slow Control Board SPI RS232

17 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Resonance frequency30 kHz TVR (transmission)133 dB re uPa/V @ 1m RVR (reception)-193 dB re V/uPa @1 m Frequency range20 kHz – 40 kHz Beam patternRadial: Omni | Axial: Toroidal (60°) Efficiency 50% Input power300 W (2% duty cycle) Operating Depth unlimited LBL Transceivers – the UPV / CPPM experience Free Flooded Rings (FFR) – SENSOR X-30 440 Bar pressure tests @ IFREMER Brest Hyperbaric Chamber

18 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Calibration of the LBL Transceivers : RVR and TVR FFR 10 cm EMITTER RECEIVER Factory standard data UPV calibration Preliminary Factory standard data UPV calibration Reciprocal calibration method ITC 1042 Calibrated FFR 10 cm Reson Calibrated EMITTER RECEIVER Receiving Voltage ResponseTransmitting Voltage Response ITC 1042 Calibrated Reson Calibrated

19 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 The Signal Emission Board: Prototype Blue: Communication and control Compliant with the rest of the DAQ and transmission electronics Red: Emission Digital feeding + transducer response Signal emission latency : 7.5 µs (t 0 = trigger) V out range: 30 V peak ÷ 3000 V peak Green: Reception Voltage limiter for analogue output during signal emission Blue: Communication and control Compliant with the rest of the DAQ and transmission electronics Red: Emission Digital feeding + transducer response Signal emission latency : 7.5 µs (t 0 = trigger) V out range: 30 V peak ÷ 3000 V peak Green: Reception Voltage limiter for analogue output during signal emission Power consumption: 101 mA @+5 VDC 1 mA @+12 VDC Signal Emission Board v.2

20 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 KM3NeT joint acoustic tests in Gandia: May 5-12, 2010 Signal Emission Board NEMO storey electronics in the storey mechanical rack H1 H2

21 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 KM3NeT joint Acoustic tests in Gandia: May 5-12, 2010 Signal emitted by the SEB: 30 µs (1 cycle) | f= 32 kHz |A  10 V p trigger time suspescted e.m. pulse on H1 and H2 at 166.1 +7.5 = 173.6 µs acoustic pulse on H1 (about 15 cm) acoustic pulse on H2 (about 30 cm)

22 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 KM3NeT joint Acoustic tests in Gandia: May 5-12, 2010 SMID / NATO hydro + pre ECAP piezo + pre Succesfull connection test of the ECAP piezos with the DAQ chain for implementation of the OAM solution Succesfull connection test of the ECAP piezos with the DAQ chain for implementation of the OAM solution Noise spectrum measured inside a metal box Acoustic pulse from SEB: 25 kHz|  10 V p |62 µs FFR ECAP piezo + pre inside a glass bottle

23 Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 - Complete the carachterization (amplitude, time) of the hydrophones data chain - Tests with new version of the Signal Emission Board and FFR - Test of the system in water (Ifremer pool, shallow seawater,...) - Tests with the “Ethernet” SCM - Full test of the Opto-Acoustic Module  Dry test with a 17’’ NEMO OM  Installation of 2 OAM onboard the NEMO mini tower (deployment: 2011) - Software developments: data distribution, data analysis, source reconstruction Future work NEMO OM 4 OMs 2 hydrophones 2OMs 2 OAMs Normal storey OAM storey

Download ppt "Giorgio Riccobene, LNS-INFN KM3NeT WPF/L Meeting, NIKHEF 5-7/07/2010 Status of the Acoustic Calibration System for KM3NeT."

Similar presentations

Jan 2009 U. Katz: Astroparticle Physics 1 What is KM3NeT – the Vision  Future cubic-kilometre sized neutrino telescope in the Mediterranean Sea  Exceeds.

Jan 2009 U. Katz: Astroparticle Physics 1 What is KM3NeT – the Vision  Future cubic-kilometre sized neutrino telescope in the Mediterranean Sea  Exceeds.
Kay Graf Physics Institute 1 University of Erlangen ARENA 2006 University of Northumbria June 28 – 30, 2006 Integration of Acoustic Neutrino Detection.

Kay Graf Physics Institute 1 University of Erlangen ARENA 2006 University of Northumbria June 28 – 30, 2006 Integration of Acoustic Neutrino Detection.
VLV T – Workshop 2003 C. A. Nicolau – VLV T - Amsterdam 5-8 October 2003 A 200-MHz FPGA based PMT acquisition electronics for NEMO experiment Read Out.

VLV T – Workshop 2003 C. A. Nicolau – VLV T - Amsterdam 5-8 October 2003 A 200-MHz FPGA based PMT acquisition electronics for NEMO experiment Read Out.
Status of the ANTARES Neutrino-Telescope Alexander Kappes Physics Institute University Erlangen-Nuremberg for the ANTARES Collaboration WIN´05, 6.–11.

Status of the ANTARES Neutrino-Telescope Alexander Kappes Physics Institute University Erlangen-Nuremberg for the ANTARES Collaboration WIN´05, 6.–11.
Kay Graf Physics Institute University of Erlangen TeV Particle Astrophysics II Madison, WI, USA August 28 – 31, 2006 Towards Acoustic Detection of UHE.

Kay Graf Physics Institute University of Erlangen TeV Particle Astrophysics II Madison, WI, USA August 28 – 31, 2006 Towards Acoustic Detection of UHE.
Aloha Proof Module Design Cabled Observatory Presentation School of Ocean and Earth Science and Technology February 2006.

Aloha Proof Module Design Cabled Observatory Presentation School of Ocean and Earth Science and Technology February 2006.
IT-101 Section 001 Lecture #15 Introduction to Information Technology.

IT-101 Section 001 Lecture #15 Introduction to Information Technology.
Paolo Musico on behalf of KM3NeT collaboration The Central Logic Board for the KM3NeT detector: design and production Abstract The KM3NeT deep sea neutrino.

Paolo Musico on behalf of KM3NeT collaboration The Central Logic Board for the KM3NeT detector: design and production Abstract The KM3NeT deep sea neutrino.
Sebastian Böser Acoustic test setup at south pole IceCube Collaboration Meeting, Berkeley, March 2005.

Sebastian Böser Acoustic test setup at south pole IceCube Collaboration Meeting, Berkeley, March 2005.
U niversity of S cience and T echnology of C hina Design for Distributed Scheme of WCDA Readout Electronics CAO Zhe University of Science and Technology.

U niversity of S cience and T echnology of C hina Design for Distributed Scheme of WCDA Readout Electronics CAO Zhe University of Science and Technology.
Deep-sea neutrino telescopes Prof. dr. Maarten de Jong Nikhef / Leiden University.

Deep-sea neutrino telescopes Prof. dr. Maarten de Jong Nikhef / Leiden University.
ANTARES: Towards Acoustic Detection of Highest Energy Neutrinos Kay Graf for the ANTARES Collaboration Erlangen Centre for Astroparticle Physics VLV T.

ANTARES: Towards Acoustic Detection of Highest Energy Neutrinos Kay Graf for the ANTARES Collaboration Erlangen Centre for Astroparticle Physics VLV T.
Hanoi, Aug. 6-12, 2006 Pascal Vernin 1 Antares Status report P.Vernin CEA Saclay, Dapnia On behalf of the Antares collaboration P.Vernin

Hanoi, Aug. 6-12, 2006 Pascal Vernin 1 Antares Status report P.Vernin CEA Saclay, Dapnia On behalf of the Antares collaboration P.Vernin
Coincidence analysis in ANTARES: Potassium-40 and muons  Brief overview of ANTARES experiment  Potassium-40 calibration technique  Adjacent floor coincidences.

Coincidence analysis in ANTARES: Potassium-40 and muons  Brief overview of ANTARES experiment  Potassium-40 calibration technique  Adjacent floor coincidences.
1 S. E. Tzamarias Hellenic Open University N eutrino E xtended S ubmarine T elescope with O ceanographic R esearch Readout Electronics DAQ & Calibration.

1 S. E. Tzamarias Hellenic Open University N eutrino E xtended S ubmarine T elescope with O ceanographic R esearch Readout Electronics DAQ & Calibration.
Stefano russo Universita’ di Napoli Federico II & INFN Km3Net meeting Pylos 16–19/4/2007 The NEMO DAQ electronics: Actual characteristics and new features.

Stefano russo Universita’ di Napoli Federico II & INFN Km3Net meeting Pylos 16–19/4/2007 The NEMO DAQ electronics: Actual characteristics and new features.
Amsterdam 29 March 2011 Fernando Urbano IFIC (CSIC – Universidad de Valencia) KM3NeT Optical Calibration Laser Beacon and Nanobeacon Status.

Amsterdam 29 March 2011 Fernando Urbano IFIC (CSIC – Universidad de Valencia) KM3NeT Optical Calibration Laser Beacon and Nanobeacon Status.
Data acquisition system for the Baikal-GVD neutrino telescope Denis Kuleshov Valday, February 3, 2015.

Data acquisition system for the Baikal-GVD neutrino telescope Denis Kuleshov Valday, February 3, 2015.
INSTRUMENTATION NEEDS FOR THE CALIBRATION UNIT …AS A WORK DOCUMENT Pascale Keller KM3Net Meeting CPPM, 29-31 january 2013 Inputs from : Miguel Ardid, Tassos.

INSTRUMENTATION NEEDS FOR THE CALIBRATION UNIT …AS A WORK DOCUMENT Pascale Keller KM3Net Meeting CPPM, january 2013 Inputs from : Miguel Ardid, Tassos.
S. Viola VLVνT 2015, Rome – 14/09/2015 Characterization and testing of the KM3NeT acoustic positioning system F. Simeone VLVνT 2015 – Rome, 14/09/2015.

S. Viola VLVνT 2015, Rome – 14/09/2015 Characterization and testing of the KM3NeT acoustic positioning system F. Simeone VLVνT 2015 – Rome, 14/09/2015.

Similar presentations

Ads by Google