tdehaeze/digital-brain
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Update many files

Browse Source 
PhDthesis were categorized as articles.
Add "fron matter" to specify zettels category
This commit is contained in:
Thomas Dehaeze
2021-09-29 22:30:09 +02:00
parent 5c68a218ca
commit 158dfe302f
70 changed files with 821 additions and 757 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
content/zettels/charge_amplifiers.md
View File

@@ -2,10 +2,11 @@
title = "Charge Amplifiers"
author = ["Thomas Dehaeze"]
draft = false
category = "equipment"
+++
Tags
: [Electronics]({{< relref "electronics" >}})
: [Electronics]({{<relref "electronics.md#" >}})
## Description {#description}
@@ -17,19 +18,19 @@ This can be typically used to interface with piezoelectric sensors.
## Basic Circuit {#basic-circuit}
Two basic circuits of charge amplifiers are shown in Figure [1](#org7d016e2) (taken from ([Fleming 2010](#org467f88f))) and Figure [2](#orgb83f736) (taken from ([Schmidt, Schitter, and Rankers 2014](#org80f2485)))
Two basic circuits of charge amplifiers are shown in Figure [1](#org0d411fa) (taken from ([Fleming 2010](#org7834496))) and Figure [2](#org1c3e25d) (taken from ([Schmidt, Schitter, and Rankers 2014](#orgd26dd11)))
<a id="org7d016e2"></a>
<a id="org0d411fa"></a>
{{< figure src="/ox-hugo/charge_amplifier_circuit.png" caption="Figure 1: Electrical model of a piezoelectric force sensor is shown in gray. The op-amp charge amplifier is shown on the right. The output voltage \\(V\_s\\) equal to \\(-q/C\_s\\)" >}}
<a id="orgb83f736"></a>
<a id="org1c3e25d"></a>
{{< figure src="/ox-hugo/charge_amplifier_circuit_bis.png" caption="Figure 2: A piezoelectric accelerometer with a charge amplifier as signal conditioning element" >}}
The input impedance of the charge amplifier is very small (unlike when using a voltage amplifier).
The gain of the charge amplified (Figure [1](#org7d016e2)) is equal to:
The gain of the charge amplified (Figure [1](#org0d411fa)) is equal to:
\\[ \frac{V\_s}{q} = \frac{-1}{C\_s} \\]
@@ -50,6 +51,6 @@ The gain of the charge amplified (Figure [1](#org7d016e2)) is equal to:
## Bibliography {#bibliography}
<a id="org467f88f"></a>Fleming, A.J. 2010. “Nanopositioning System with Force Feedback for High-Performance Tracking and Vibration Control.” _IEEE/ASME Transactions on Mechatronics_ 15 (3):433–47. <https://doi.org/10.1109/tmech.2009.2028422>.
<a id="org7834496"></a>Fleming, A.J. 2010. “Nanopositioning System with Force Feedback for High-Performance Tracking and Vibration Control.” _IEEE/ASME Transactions on Mechatronics_ 15 (3):433–47. <https://doi.org/10.1109/tmech.2009.2028422>.
<a id="org80f2485"></a>Schmidt, R Munnig, Georg Schitter, and Adrian Rankers. 2014. _The Design of High Performance Mechatronics - 2nd Revised Edition_. Ios Press.
<a id="orgd26dd11"></a>Schmidt, R Munnig, Georg Schitter, and Adrian Rankers. 2014. _The Design of High Performance Mechatronics - 2nd Revised Edition_. Ios Press.