Sensors and data acquisition system

1. Sensors and data acquisition system Lea Di Noto INFN Genova SOX General Meeting, SestriLevante 14th May 2014

2. Introduction We want to know the adsorbed power with 1% accuracy by measuring: - the water mass flow - the difference of temperature between the entering water and the outgoing water varies from 1500 W to 500 W is 0.01 kg/s variesfrom 35°C to 12 °C SOX meeting, 14th May 2014 L.DiNoto - INFN Genova

3. The sensors 1. Main sensors mass flow meters  thermometers with high accuracy 2.Other sensors  inside the chamber  outside the chamber to monitor and control the apparatus SOX meeting, 14th May 2014 L.DiNoto - INFN Genova

4. The mass flow meter (I) sensors The Coriolis type sensor The measuring tubes are forced to oscillate producing a sine wave No flow With flow driver The Coriolis forces cause the phase shift that is proportional to the mass flow rate. SOX meeting, 14th May 2014 L.DiNoto - INFN Genova

5. The mass flow meter (II) MODEL: EliteSeriesCMF010 Range: 0.005-0.02 kg/s Accuracy: 0.1% It communicates with the DAQ by Serial Interface by Modbus Protocol Two of these are necessary to check water leakage They will be placed outside the tunnel SOX meeting, 14th May 2014 L.DiNoto - INFN Genova

6. Thermometers with high accuracy • SENSOR: • Platinum Resistance Thermometer Two of these are immersed for 15 cm in two little wells • ACQUISITION DEVICE: • IsotechmilliK • With a 4 wires measurement we will obtain: • Accuracy:0.004-0.005 °C • Resolution: 0.001 °C • Relative error on ΔT < 0.1% SOX meeting, 14th May 2014 L.DiNoto - INFN Genova

7. Other sensors thermometers with low accuracy • SENSOR: • Resistance Temperature Detector (RTD) • to control temperature inside the chamber: • on the copper jacket • on the inner surface • The bulb will be in contact with the surface • The signals will be acquired by a proper NI Module • With a 3 wires measurements  accuracy 0.05 K SOX meeting, 14th May 2014 L.DiNoto - INFN Genova

8. Other sensors strain gauge • to monitor the hanging platform sensor • Three of these: one for each support • The signals will be acquired by a proper National Instruments Module SOX meeting, 14th May 2014 L.DiNoto - INFN Genova

9. Other sensors vacuum system Gauge sensors • inside the calorimeter chamber • in the pre-vacuum zone Remote control of turbo-pump and of the main gate valve They will be bought by Munich group water system Chiller sensors (if necessary) • water level • water temperature SOX meeting, 14th May 2014 L.DiNoto - INFN Genova

10. Other sensors inside the tunnel Environmental sensors • Geiger counter • Thermometer • Barometer • Hygrometer Other • Web camera • Proximity sensorsnear the rails for detecting the final position of the calorimeter and the trolley SOX meeting, 14th May 2014 L.DiNoto - INFN Genova

11. The acquisition system in a simple way CALORIMETER sensors Sensors in the tunnel CompactRIO • Thermometer • High Accuracy • Thermometers LowAccuracy • Vacuum gauge • Strain gauge Mass flow meters CompactDAQ SOX meeting, 14th May 2014 L.DiNoto - INFN Genova

12. The acquisition system in a more detailed way SOX meeting, 14th May 2014 L.DiNoto - INFN Genova

13. The National Instruments chassis • CompactRIO • has an embedded CPU • saves temporary data • communicates with PC by Ethernet It will be on the trolley inside a IP66 certified box • CompactDAQ • acquires analog or digital signals from the tunnel sensors • communicates with PC by USB port It will be outside the tunnel near the PC SOX meeting, 14th May 2014 L.DiNoto - INFN Genova

14. Conclusions… All the main sensors and the cRIO system have been ordered!! … and time table • Test sensors and set up the DAQ system by July • Define the emergency proceduresby July • Assemble the DAQ systemon the calorimeter at Munich by October • Test and calibrate the apparatus with the mock-up source by January • Transport the apparatus to the LNGS !! SOX meeting, 14th May 2014 L.DiNoto - INFN Genova