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Test connection at room temperature (11/02/2016)

Connections to SQUID and Calibration (+ aux functions) were made using two complete MagniconCryoCable with 1.5m each, contrary to first installation were Calibration cable only had 1 twisted pair, and hence it was impossible use the CartridgeTemperature sensor nor the PickupLoopHeater.

Measurement of the resistance between all pins in SQUID cable

Resistance [Ohm] +V1 (pin 14) -V1 (pin 1) +$\phi1$ (pin 16) -$\phi1$ (pin 2) H1 (pin 3) I1 (pin 4) $\phi X1$ (pin 17) GND1 (pin 15)
+V1 (pin 14) -              
-V1 (pin 1) 510 -            
+$\phi1$ (pin 16) $\infty$ $\infty$ -          
-$\phi1$ (pin 2) $\infty$ $\infty$ 90 -        
H1 (pin 3) $\infty$ $\infty$ $\infty$ $\infty$ -      
I1 (pin 4) $\infty$ $\infty$ $\infty$ $\infty$ $\infty$ -    
$\phi X1$ (pin 17) $\infty$ $\infty$ $\infty$ $\infty$ $\infty$ $\infty$ -  
GND1 (pin 15) $\infty$ 10 $\infty$ $\infty$ $\infty$ $\infty$ $\infty$ -
Measurement of the resistance between all pins in CALIBRATION cable (http://www.magnicon.com/squid-sensors/squid-packaging/cc-1/)

Resistance [Ohm] +Cal (pin 14) -Cal (pin 1) +Temp (pin 3) -Temp (pin 17) +Heater (pin 15) -Heater (pin 4)
+Cal (pin 14) -          
-Cal (pin 1) 6 -        
+Temp (pin 3) $\infty$ $\infty$ -      
-Temp (pin 17) $\infty$ $\infty$ $\infty$ 57 -  
+Heater (pin 15) $\infty$ $\infty$ $\infty$ $\infty$ -  
-Heater (pin 4) $\infty$ $\infty$ $\infty$ $\infty$ 38 -
Using an RLC meter the inductance of the calibration loop as also been measured:

freq [kHz] L [$\mu$H]
0.10 158
0.12 158
1 81
10 5.6
100 4.1

Test connection at cold (11/02/2016)

Measurement of the resistance between all pins in CALIBRATION cable ( http://www.magnicon.com/squid-sensors/squid-packaging/cc-1/ )

Resistance [Ohm] +Cal (pin 14) -Cal (pin 1) +Temp (pin 3) -Temp (pin 17) +Heater (pin 15) -Heater (pin 4)
+Cal (pin 14) -          
-Cal (pin 1) 5 -        
+Temp (pin 3) $\infty$ $\infty$ -      
-Temp (pin 17) $\infty$ $\infty$ $\infty$ 378 -  
+Heater (pin 15) $\infty$ $\infty$ $\infty$ $\infty$ -  
-Heater (pin 4) $\infty$ $\infty$ $\infty$ $\infty$ 33 -

Measurement of the pickup core inductance with the LCR-meter showed a purely resistive impedance. So a measurement was done using the AC current source.

freq [Hz] Phase      
10        
20        
100        
200        
1000        
2000        
10000        
20000        

-- MiguelFernandes - 2016-03-08

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Topic revision: r2 - 2016-03-11 - MiguelFernandes
 
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