01-Feb-2009 Notes on prst-ab paper
Summary LOG LOW FREQ COLL MEAS
08-Nov-2007
- measurements with VNA setup
- 30 cm coil, delta=2.5mm, 9 turns
- graphite and copper plates 20 x 15 x 1 cm
- 30 cm coil, delta=2.5mm, 9 turns
14-Nov-2007
- Discussion/Meeting
19 and 20-Nov-2007
- tested AGILENT E4980A impedance meter
- measurements with
- 30 cm coil, delta=2.5mm, 9 turns
- graphite and copper plates 20 x 15 x 1 cm
- 30 cm coil, delta=2.5mm, 9 turns
and compare with VNA measurements 08-11-2007.
Data and Plots
21-Nov-2007
22-Nov-2007
Measure PIMS!
New coil:
* N = 14, Delta = 1.2cm + 2 * 0.2cm = 16mm
18:30: Meas PIM "full open":
- L=17.8cm
- 8 (?) RF fingers not in contact
19:00: Meas PIM "half open"
- L=16.5
- All fingers in contact (w.r.t Benoit's point o view!)
19:30: Meas PIM "closed"
- L=15.8 (?)
- All fingers in contact (w.r.t Benoit's point o view!)
20:00: Meas PIM "full open FAST" Went back to "open" position, use:
- ACQUISITION MEAS TIME (here MEDIUM)
- took 1 point/freq (for all other meas: 3 points)
- L~=17.8
We see up to 5*10e-6 difference w.r.t Meas 18:30.
Reasons may be:
- different alignment
- different RF fingers contact
- different acquisition mode
20:20: Meas PIM "full open CHECK" Nothing changed/moved from previous meas, apart from:
- ACQUISITION MEAS TIME (here LONG)
- took 1 point/freq
- L=17.8
We see a maximum of 0.5*10e-6 w.r.t "FAST"We decide that could affect the meas and continue in mode ACQUISITION MEAS TIME (here LONG)
20:30: Meas reference copper cylinder