diff --git a/figs/apa300ML.png b/figs/apa300ML.png new file mode 100644 index 0000000..1c73b61 Binary files /dev/null and b/figs/apa300ML.png differ diff --git a/index.html b/index.html index a8bbcaf..d2a57e4 100644 --- a/index.html +++ b/index.html @@ -3,7 +3,7 @@ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> - + Amplifier Piezoelectric Actuator APA300ML - Test Bench @@ -30,21 +30,21 @@

Table of Contents

@@ -65,18 +65,25 @@ This include:
  • Dynamical behavior
    • -
    -

    1 Model of an Amplified Piezoelectric Actuator and Sensor

    + +
    +

    apa300ML.png +

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    Figure 1: Picture of the APA300ML

    +
    + +
    +

    1 Model of an Amplified Piezoelectric Actuator and Sensor

    -Consider a schematic of the Amplified Piezoelectric Actuator in Figure 1. +Consider a schematic of the Amplified Piezoelectric Actuator in Figure 2.

    -
    +

    apa_model_schematic.png

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    Figure 1: Amplified Piezoelectric Actuator Schematic

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    Figure 2: Amplified Piezoelectric Actuator Schematic

    @@ -98,22 +105,22 @@ We wish here to experimental measure \(g_a\) and \(g_s\).

    -The block-diagram model of the piezoelectric actuator is then as shown in Figure 2. +The block-diagram model of the piezoelectric actuator is then as shown in Figure 3.

    -
    +

    apa-model-simscape-schematic.png

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    Figure 2: Model of the APA with Simscape/Simulink

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    Figure 3: Model of the APA with Simscape/Simulink

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    -

    2 Test-Bench Description

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    +

    2 Test-Bench Description

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    +

    Here are the documentation of the equipment used for this test bench:

    @@ -128,20 +135,20 @@ Here are the documentation of the equipment used for this test bench:
    -
    +

    test_bench_apa_alone.png

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    Figure 3: Schematic of the Test Bench

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    Figure 4: Schematic of the Test Bench

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    -

    3 Measurement Procedure

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    +

    3 Measurement Procedure

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    3.1 Stroke Measurement

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    3.1 Stroke Measurement

    Using the PD200 amplifier, output a voltage: @@ -169,8 +176,8 @@ Conclude on the obtained stroke.

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    -

    3.2 Stiffness Measurement

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    +

    3.2 Stiffness Measurement

    Add some (known) weight \(\delta m g\) on the suspended mass and measure the deflection \(\delta d\). @@ -190,8 +197,8 @@ Then the obtained stiffness is:

    -
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    3.3 Hysteresis measurement

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    +

    3.3 Hysteresis measurement

    Supply a quasi static sinusoidal excitation \(V_a\) at different voltages. @@ -211,8 +218,8 @@ Then, \(d\) is plotted as a function of \(V_a\) for all the amplitudes.

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    3.4 Piezoelectric Actuator Constant

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    3.4 Piezoelectric Actuator Constant

    Using the measurement test-bench, it is rather easy the determine the static gain between the applied voltage \(V_a\) to the induced displacement \(d\). @@ -239,8 +246,8 @@ From the two gains, it is then easy to determine \(g_a\):

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    3.5 Piezoelectric Sensor Constant

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    +

    3.5 Piezoelectric Sensor Constant

    From a quasi static (1Hz) excitation of the piezoelectric stack, measure the gain from \(V_a\) to \(V_s\): @@ -270,8 +277,8 @@ This external force can be some weight added, or a piezo in parallel.

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    3.6 Capacitance Measurement

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    +

    3.6 Capacitance Measurement

    Measure the capacitance of the 3 stacks individually using a precise multi-meter. @@ -279,8 +286,8 @@ Measure the capacitance of the 3 stacks individually using a precise multi-meter

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    3.7 Dynamical Behavior

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    +

    3.7 Dynamical Behavior

    Perform a system identification from \(V_a\) to the measured displacement \(d\) by the interferometer and by the encoder, and to the general voltage \(V_s\). @@ -296,8 +303,8 @@ This can also be performed with and without the encoder fixed to the APA.

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    3.8 Compare the results obtained for all 7 APA300ML

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    +

    3.8 Compare the results obtained for all 7 APA300ML

    Compare all the obtained parameters for all the test APA. @@ -306,13 +313,13 @@ Compare all the obtained parameters for all the test APA.

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    4 Measurement Results

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    +

    4 Measurement Results

    Author: Dehaeze Thomas

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    Created: 2020-12-17 jeu. 14:55

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    Created: 2021-01-04 lun. 14:44

    diff --git a/index.org b/index.org index b8ebd20..c22e3e4 100644 --- a/index.org +++ b/index.org @@ -52,6 +52,10 @@ This include: - Gain from the sensor stack strain $\delta L$ to the generated voltage $V_s$ - Dynamical behavior +#+name: fig:apa300ML +#+caption: Picture of the APA300ML +[[file:figs/apa300ML.png]] + * Model of an Amplified Piezoelectric Actuator and Sensor Consider a schematic of the Amplified Piezoelectric Actuator in Figure [[fig:apa_model_schematic]].