Ribbon Cable Attenuation Measurements: Difference between revisions
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[http://wiki.iac.isu.edu/index.php/PhotoFission_with_Polarized_Photons_from_HRRL Go Back] | [http://wiki.iac.isu.edu/index.php/PhotoFission_with_Polarized_Photons_from_HRRL Go Back] | ||
=Attenuation of Ribbon Cable measurements= | |||
==Experimental Set Up== | ==Experimental Set Up== | ||
| Line 6: | Line 8: | ||
| setup without Ribbon Cable|| setup with Ribbon Cable | | setup without Ribbon Cable|| setup with Ribbon Cable | ||
|- | |- | ||
| [[ | | [[File:Setup before.JPG | 400 px]] || [[File:Setup after.JPG | 400 px]] | ||
|}<br><br> | |}<br><br> | ||
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<math>V_2</math> - with Ribbon Cable | <math>V_2</math> - with Ribbon Cable | ||
==Pictures== | ==Pictures about change of pulse shape== | ||
{| border="1" cellpadding="20" cellspacing="0" | {| border="1" cellpadding="20" cellspacing="0" | ||
| Line 47: | Line 49: | ||
| [[File:30ns before.JPG | 400 px]] || [[File:30ns after.JPG | 400 px]] | | [[File:30ns before.JPG | 400 px]] || [[File:30ns after.JPG | 400 px]] | ||
|}<br><br> | |}<br><br> | ||
=Signal Delay in Ribbon Cable measurements= | |||
==Experimental Set Up== | |||
{| border="1" cellpadding="20" cellspacing="0" | |||
| setup without Ribbon Cable|| setup with Ribbon Cable | |||
|- | |||
| [[File:Setup_2signal_before.JPG | 400 px]] || [[File:Setup_2signal_after.JPG | 400 px]] | |||
|}<br><br> | |||
==Measurements== | |||
{| border="1" cellpadding="20" cellspacing="0" | |||
| 2 pulses without Ribbon Cable|| 2 pulses with Ribbon Cable | |||
|- | |||
| [[File:100ns delay before.JPG | 400 px]] || [[File:100ns delay after.JPG | 400 px]] | |||
|}<br><br> | |||
We have about 170 ns delay of signal in Ribbon Cable for 100 ns pulse. | |||
For other pulse width the delay is about the same. | |||
[http://wiki.iac.isu.edu/index.php/PhotoFission_with_Polarized_Photons_from_HRRL Go Back] | [http://wiki.iac.isu.edu/index.php/PhotoFission_with_Polarized_Photons_from_HRRL Go Back] | ||
Latest revision as of 22:27, 19 January 2011
Attenuation of Ribbon Cable measurements
Experimental Set Up
| setup without Ribbon Cable | setup with Ribbon Cable |
 |
|
Measurements
| Pulse width | [math]\displaystyle{ V_1 }[/math] | [math]\displaystyle{ V_2 }[/math] | Attenuation, % | Comments |
| [math]\displaystyle{ 100\ \mu s }[/math] | [math]\displaystyle{ 5.0\ V }[/math] | [math]\displaystyle{ 4.5\ V }[/math] | 10 % | |
| [math]\displaystyle{ 10\ \mu s }[/math] | [math]\displaystyle{ 5.0\ V }[/math] | [math]\displaystyle{ 4.2\ V }[/math] | 16 % | |
| [math]\displaystyle{ 1\ \mu s }[/math] | [math]\displaystyle{ 5.0\ V }[/math] | [math]\displaystyle{ 3.0\ V }[/math] | 40 % | see pictures about change of pulse shape |
| [math]\displaystyle{ 100\ ns }[/math] | [math]\displaystyle{ 5.0\ V }[/math] | [math]\displaystyle{ 2.8\ V }[/math] | 44 % | see pictures about change of pulse shape |
| [math]\displaystyle{ 30\ ns }[/math] | [math]\displaystyle{ 4.0\ V }[/math] | [math]\displaystyle{ 1.8\ V }[/math] | 55 % | see pictures about change of pulse shape |
[math]\displaystyle{ V_1 }[/math] - without Ribbon Cable [math]\displaystyle{ V_2 }[/math] - with Ribbon Cable
Pictures about change of pulse shape
| [math]\displaystyle{ 1\ \mu s }[/math] pulse without Ribbon Cable | [math]\displaystyle{ 1\ \mu s }[/math] pulse with Ribbon Cable |
 |
|
| [math]\displaystyle{ 100\ ns }[/math] pulse without Ribbon Cable | [math]\displaystyle{ 100\ ns }[/math] pulse with Ribbon Cable |
 |
|
| [math]\displaystyle{ 30\ ns }[/math] pulse without Ribbon Cable | [math]\displaystyle{ 30\ ns }[/math] pulse with Ribbon Cable |
 |
|
Signal Delay in Ribbon Cable measurements
Experimental Set Up
| setup without Ribbon Cable | setup with Ribbon Cable |
 |
|
Measurements
| 2 pulses without Ribbon Cable | 2 pulses with Ribbon Cable |
 |
|
We have about 170 ns delay of signal in Ribbon Cable for 100 ns pulse. For other pulse width the delay is about the same.