40m
QIL
Cryo_Lab
CTN
SUS_Lab
TCS_Lab
OMC_Lab
CRIME_Lab
FEA
ENG_Labs
OptContFac
Mariner
WBEEShop
|
Cryo Lab eLog |
Not logged in |
 |
|
Thu Mar 4 13:37:14 2021, aaron, DailyProgress, Electronics, PSOMA S mA->MHz, ITC 502 current noise  
|
Sun Mar 7 19:32:32 2021, rana, DailyProgress, Electronics, PSOMA S mA->MHz, ITC 502 current noise
|
Wed Mar 10 16:03:19 2021, aaron, DailyProgress, Electronics, current noise
|
Thu Mar 11 13:56:47 2021, aaron, DailyProgress, Electronics, current noise
|
|
Message ID: 2675
Entry time: Sun Mar 7 19:32:32 2021
In reply to: 2673
|
Author: |
rana |
Type: |
DailyProgress |
Category: |
Electronics |
Subject: |
PSOMA S mA->MHz, ITC 502 current noise |
|
|
something weird in the current noise plot - left axis log, right axis linear
also, something is up with the overall scale. With 5 nV of noise on a 20 Ohm resistor, the noise floor above 10 Hz should be ~250 pA/rHz. I recammend plotting the noise floor of the measurement apparatus with a 20 or 50 Ohm input term on the 560 (and grab the Busby Low Noise box from the 40) |