From dd77f5fea37d825c4a3be2746f1895901ad5fa0e Mon Sep 17 00:00:00 2001 From: Thomas Dehaeze Date: Thu, 13 Aug 2020 10:00:54 +0200 Subject: [PATCH] Add comments about amplifiers and piezo --- index.html | 83 ++++++++++++++++++++++++++++++++++-------------------- index.org | 9 ++++++ 2 files changed, 61 insertions(+), 31 deletions(-) diff --git a/index.html b/index.html index 7bfc728..7ac2dcb 100644 --- a/index.html +++ b/index.html @@ -3,7 +3,7 @@ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> - + Measurement of Piezoelectric Amplifiers @@ -15,6 +15,14 @@ + +
@@ -23,33 +31,46 @@

Table of Contents

-
-

1 Effect of a change of capacitance

+

+Two voltage amplifiers are tested: +

+ + +

+The piezoelectric actuator under test is an APA95ML from Cedrat technology. +It contains three stacks with a capacitance of \(5 \mu F\) each that can be connected independently to the amplifier. +

+ +
+

1 Effect of a change of capacitance

-
-

1.1 Cedrat Technology

+
+

1.1 Cedrat Technology

Load Data @@ -82,7 +103,7 @@ win = hann(ceil(0.1/Ts));

-
+

change_capa_cedrat.png

Figure 1: Effect of a change of the piezo capacitance on the Amplifier transfer function

@@ -90,8 +111,8 @@ win = hann(ceil(0.1/Ts));
-
-

1.2 PI

+
+

1.2 PI

piezo1 = load('mat/pi_505_high.mat', 't', 'V_in', 'V_out');
@@ -118,7 +139,7 @@ win = hann(ceil(0.1/Ts));
-
+

change_capa_pi.png

Figure 2: Effect of a change of the piezo capacitance on the Amplifier transfer function

@@ -127,12 +148,12 @@ win = hann(ceil(0.1/Ts));
-
-

2 Effect of a change in Voltage level

+
+

2 Effect of a change in Voltage level

-
-

2.1 Cedrat Technology

+
+

2.1 Cedrat Technology

hi = load('mat/cedrat_la75b_high_1_stack.mat', 't', 'V_in', 'V_out');
@@ -157,7 +178,7 @@ win = hann(ceil(0.1/Ts));
-
+

change_level_cedrat.png

Figure 3: Effect of a change of voltage level on the Amplifier transfer function

@@ -165,8 +186,8 @@ win = hann(ceil(0.1/Ts));
-
-

2.2 PI

+
+

2.2 PI

hi = load('mat/pi_505_high.mat', 't', 'V_in', 'V_out');
@@ -187,7 +208,7 @@ win = hann(ceil(0.1/Ts));
-
+

change_level_pi.png

Figure 4: Effect of a change of voltage level on the Amplifier transfer function

@@ -196,12 +217,12 @@ win = hann(ceil(0.1/Ts));
-
-

3 Comparison PI / Cedrat

+
+

3 Comparison PI / Cedrat

-
-

3.1 Results

+
+

3.1 Results

ce_results = load('mat/cedrat_la75b_high_1_stack.mat', 't', 'V_in', 'V_out');
@@ -219,7 +240,7 @@ win = hann(ceil(0.1/Ts));
-
+

tf_amplifiers_comp.png

Figure 5: Comparison of the two Amplifier transfer functions

@@ -230,7 +251,7 @@ win = hann(ceil(0.1/Ts));

Author: Dehaeze Thomas

-

Created: 2020-08-13 jeu. 09:43

+

Created: 2020-08-13 jeu. 10:00

diff --git a/index.org b/index.org index 30e4147..3ff9977 100644 --- a/index.org +++ b/index.org @@ -34,6 +34,15 @@ #+PROPERTY: header-args:matlab+ :output-dir figs :END: +* Introduction :ignore: + +Two voltage amplifiers are tested: +- PI E-505.00 ([[https://www.pi-usa.us/en/products/controllers-drivers-motion-control-software/piezo-drivers-controllers-power-supplies-high-voltage-amplifiers/e-505-piezo-amplifier-module-602300/][link]]) +- Cedrat Technology LA75B ([[https://www.cedrat-technologies.com/en/products/piezo-controllers/electronic-amplifier-boards.html][link]]) + +The piezoelectric actuator under test is an APA95ML from Cedrat technology. +It contains three stacks with a capacitance of $5 \mu F$ each that can be connected independently to the amplifier. + * Effect of a change of capacitance ** Matlab Init :noexport:ignore: #+begin_src matlab :tangle no :exports none :results silent :noweb yes :var current_dir=(file-name-directory buffer-file-name)