From fe81b319f9a8cfee8ee79925906e61179b8d6558 Mon Sep 17 00:00:00 2001
From: "remi.clement" <remi.clement@inrae.fr>
Date: Sun, 15 Nov 2020 19:31:31 +0100
Subject: [PATCH] Update diocumentation: description of measurement board
assembly
---
public/_sources/page1.rst.txt | 33 +++++++++--------
public/index.html | 2 +-
public/page1.html | 43 ++++++++++++++---------
public/searchindex.js | 2 +-
sphinx/build/doctrees/environment.pickle | Bin 21710 -> 22368 bytes
sphinx/build/doctrees/page1.doctree | Bin 68749 -> 69743 bytes
sphinx/build/html/_sources/page1.rst.txt | 33 +++++++++--------
sphinx/build/html/index.html | 2 +-
sphinx/build/html/page1.html | 43 ++++++++++++++---------
sphinx/build/html/searchindex.js | 2 +-
sphinx/source/page1.rst | 33 +++++++++--------
11 files changed, 115 insertions(+), 78 deletions(-)
diff --git a/public/_sources/page1.rst.txt b/public/_sources/page1.rst.txt
index 117865b2..eaf48276 100644
--- a/public/_sources/page1.rst.txt
+++ b/public/_sources/page1.rst.txt
@@ -164,11 +164,14 @@ If you decided to use a virtual environment, it is necessary to setup Thonny Pyt
9- Close thonny to save modifications
-Measurement and Injection board developpement
-**************************************************************************
+Assembly of the measuring/current injection cards, and connection with the Raspberry Pi
+*****************************************************************************************
-Electrical resistivity measurements
-===================================
+Electrical resistivity measurements board
+==========================================
+
+a) Description
+-----------------------------
To measure electrical resistivity with Raspberry Pi, an ADS1115 was introduced, as proposed by Florsch [7]. The ADS1115
is a 16-bit ADC (Analog-to-Digital Converter), with an adaptable gain. Its value has been set at 2/3 in this study. The
@@ -210,19 +213,21 @@ constitutes a potential hazard. We therefore recommend adding a 1.5-A fuse betwe
:figclass: align-center
Measurement board
-
-Implementation
-==============
-
+
+b) Implementation
+--------------------------------
The measurement board must be printed using the PCB file (Source file repository), with components soldered onto
it by following the steps described below and illustrated in the following figure :
-
* Step no. 1: installation of the 1-Kohm resistors with an accuracy of ± 1%.
* Step no. 2: installation of the 1.5-Kohm resistors with an accuracy of ± 1%.
-* Step no. 3: installation of both the black female 1 x 10 header and the 7-blue screw terminal blocks
-* Step no. 4: installation of the 50-Ohm reference resistor ± 0.1%
-* Step no. 5: addition of both the ADS115 directly onto the header (pins must be plugged according to the figure) and the LM358N operational amplifiers (pay attention to the direction).
+* Step no. 3: test divider bridge
+
+ UNDERconstruction
+
+* Step no. 4: installation of both the black female 1 x 10 header and the 7-blue screw terminal blocks
+* Step no. 5: installation of the 50-Ohm reference resistor ± 0.1%
+* Step no. 6: addition of both the ADS115 directly onto the header (pins must be plugged according to the figure) and the LM358N operational amplifiers (pay attention to the direction).
1-Kohm and 1.5-Kohm resistors apply to the divider bridge. If, for example, you prefer using a weaker
or stronger power supply, it would be possible to adjust the divider bridge value by simply modifying these resistors.
@@ -248,8 +253,8 @@ place a fuse holder with a 1.5-A fuse for safety purposes.
Measurement board installation with Raspberry Pi
-Current injection
-=================
+Current injection board
+=======================
To carry out the electrical resistivity measurement, the first step consists of injecting current into the ground.
In our case, a simple 12-V lead-acid battery is used to create an electrical potential difference that results
diff --git a/public/index.html b/public/index.html
index a5ba7e04..22914225 100644
--- a/public/index.html
+++ b/public/index.html
@@ -191,7 +191,7 @@
<li class="toctree-l2"><a class="reference internal" href="page1.html#the-philosophy-of-ohmpi">The philosophy of Ohmpi</a></li>
<li class="toctree-l2"><a class="reference internal" href="page1.html#technical-data">Technical data</a></li>
<li class="toctree-l2"><a class="reference internal" href="page1.html#raspberry-pi-configuration">Raspberry Pi configuration</a></li>
-<li class="toctree-l2"><a class="reference internal" href="page1.html#measurement-and-injection-board-developpement">Measurement and Injection board developpement</a></li>
+<li class="toctree-l2"><a class="reference internal" href="page1.html#assembly-of-the-measuring-current-injection-cards-and-connection-with-the-raspberry-pi">Assembly of the measuring/current injection cards, and connection with the Raspberry Pi</a></li>
<li class="toctree-l2"><a class="reference internal" href="page1.html#multiplexer-implentation">Multiplexer implentation</a></li>
<li class="toctree-l2"><a class="reference internal" href="page1.html#electrode-connection">Electrode connection</a></li>
<li class="toctree-l2"><a class="reference internal" href="page1.html#operating-instruction">Operating instruction</a></li>
diff --git a/public/page1.html b/public/page1.html
index 5f6564a3..752cd38d 100644
--- a/public/page1.html
+++ b/public/page1.html
@@ -92,10 +92,13 @@
<li class="toctree-l3"><a class="reference internal" href="#activate-virtual-environnement-on-thonny-python-ide-on-rapberry-pi">Activate virtual environnement on Thonny (Python IDE) (on Rapberry Pi)</a></li>
</ul>
</li>
-<li class="toctree-l2"><a class="reference internal" href="#measurement-and-injection-board-developpement">Measurement and Injection board developpement</a><ul>
-<li class="toctree-l3"><a class="reference internal" href="#electrical-resistivity-measurements">Electrical resistivity measurements</a></li>
-<li class="toctree-l3"><a class="reference internal" href="#implementation">Implementation</a></li>
-<li class="toctree-l3"><a class="reference internal" href="#current-injection">Current injection</a></li>
+<li class="toctree-l2"><a class="reference internal" href="#assembly-of-the-measuring-current-injection-cards-and-connection-with-the-raspberry-pi">Assembly of the measuring/current injection cards, and connection with the Raspberry Pi</a><ul>
+<li class="toctree-l3"><a class="reference internal" href="#electrical-resistivity-measurements-board">Electrical resistivity measurements board</a><ul>
+<li class="toctree-l4"><a class="reference internal" href="#a-description">a) Description</a></li>
+<li class="toctree-l4"><a class="reference internal" href="#b-implementation">b) Implementation</a></li>
+</ul>
+</li>
+<li class="toctree-l3"><a class="reference internal" href="#current-injection-board">Current injection board</a></li>
<li class="toctree-l3"><a class="reference internal" href="#frist-four-electrodes-resistivity-mesurement">Frist four electrodes resistivity mesurement</a></li>
</ul>
</li>
@@ -319,10 +322,12 @@ to leave the virtual environment simply type:</p>
<p>9- Close thonny to save modifications</p>
</div>
</div>
-<div class="section" id="measurement-and-injection-board-developpement">
-<h2>Measurement and Injection board developpement<a class="headerlink" href="#measurement-and-injection-board-developpement" title="Permalink to this headline">¶</a></h2>
-<div class="section" id="electrical-resistivity-measurements">
-<h3>Electrical resistivity measurements<a class="headerlink" href="#electrical-resistivity-measurements" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="assembly-of-the-measuring-current-injection-cards-and-connection-with-the-raspberry-pi">
+<h2>Assembly of the measuring/current injection cards, and connection with the Raspberry Pi<a class="headerlink" href="#assembly-of-the-measuring-current-injection-cards-and-connection-with-the-raspberry-pi" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="electrical-resistivity-measurements-board">
+<h3>Electrical resistivity measurements board<a class="headerlink" href="#electrical-resistivity-measurements-board" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="a-description">
+<h4>a) Description<a class="headerlink" href="#a-description" title="Permalink to this headline">¶</a></h4>
<p>To measure electrical resistivity with Raspberry Pi, an ADS1115 was introduced, as proposed by Florsch [7]. The ADS1115
is a 16-bit ADC (Analog-to-Digital Converter), with an adaptable gain. Its value has been set at 2/3 in this study. The
input signal value could lie between - to + 6.114 V. The ADS1115 is mounted on a board adapted from an in-house design.
@@ -359,16 +364,21 @@ constitutes a potential hazard. We therefore recommend adding a 1.5-A fuse betwe
<p class="caption"><span class="caption-text">Measurement board</span><a class="headerlink" href="#id1" title="Permalink to this image">¶</a></p>
</div>
</div>
-<div class="section" id="implementation">
-<h3>Implementation<a class="headerlink" href="#implementation" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="b-implementation">
+<h4>b) Implementation<a class="headerlink" href="#b-implementation" title="Permalink to this headline">¶</a></h4>
<p>The measurement board must be printed using the PCB file (Source file repository), with components soldered onto
it by following the steps described below and illustrated in the following figure :</p>
-<ul class="simple">
+<ul>
<li><p>Step no. 1: installation of the 1-Kohm resistors with an accuracy of ± 1%.</p></li>
<li><p>Step no. 2: installation of the 1.5-Kohm resistors with an accuracy of ± 1%.</p></li>
-<li><p>Step no. 3: installation of both the black female 1 x 10 header and the 7-blue screw terminal blocks</p></li>
-<li><p>Step no. 4: installation of the 50-Ohm reference resistor ± 0.1%</p></li>
-<li><p>Step no. 5: addition of both the ADS115 directly onto the header (pins must be plugged according to the figure) and the LM358N operational amplifiers (pay attention to the direction).</p></li>
+<li><p>Step no. 3: test divider bridge</p>
+<blockquote>
+<div><p>UNDERconstruction</p>
+</div></blockquote>
+</li>
+<li><p>Step no. 4: installation of both the black female 1 x 10 header and the 7-blue screw terminal blocks</p></li>
+<li><p>Step no. 5: installation of the 50-Ohm reference resistor ± 0.1%</p></li>
+<li><p>Step no. 6: addition of both the ADS115 directly onto the header (pins must be plugged according to the figure) and the LM358N operational amplifiers (pay attention to the direction).</p></li>
</ul>
<p>1-Kohm and 1.5-Kohm resistors apply to the divider bridge. If, for example, you prefer using a weaker
or stronger power supply, it would be possible to adjust the divider bridge value by simply modifying these resistors.
@@ -384,8 +394,9 @@ place a fuse holder with a 1.5-A fuse for safety purposes.</p>
<p class="caption"><span class="caption-text">Measurement board installation with Raspberry Pi</span><a class="headerlink" href="#id3" title="Permalink to this image">¶</a></p>
</div>
</div>
-<div class="section" id="current-injection">
-<h3>Current injection<a class="headerlink" href="#current-injection" title="Permalink to this headline">¶</a></h3>
+</div>
+<div class="section" id="current-injection-board">
+<h3>Current injection board<a class="headerlink" href="#current-injection-board" title="Permalink to this headline">¶</a></h3>
<p>To carry out the electrical resistivity measurement, the first step consists of injecting current into the ground.
In our case, a simple 12-V lead-acid battery is used to create an electrical potential difference that results
in current circulating into the ground. The current is injected through electrodes A and B (see Fig. 2). This
diff --git a/public/searchindex.js b/public/searchindex.js
index 287a3e28..38bd9184 100644
--- a/public/searchindex.js
+++ b/public/searchindex.js
@@ -1 +1 @@
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diff --git a/sphinx/build/html/_sources/page1.rst.txt b/sphinx/build/html/_sources/page1.rst.txt
index 117865b2..eaf48276 100644
--- a/sphinx/build/html/_sources/page1.rst.txt
+++ b/sphinx/build/html/_sources/page1.rst.txt
@@ -164,11 +164,14 @@ If you decided to use a virtual environment, it is necessary to setup Thonny Pyt
9- Close thonny to save modifications
-Measurement and Injection board developpement
-**************************************************************************
+Assembly of the measuring/current injection cards, and connection with the Raspberry Pi
+*****************************************************************************************
-Electrical resistivity measurements
-===================================
+Electrical resistivity measurements board
+==========================================
+
+a) Description
+-----------------------------
To measure electrical resistivity with Raspberry Pi, an ADS1115 was introduced, as proposed by Florsch [7]. The ADS1115
is a 16-bit ADC (Analog-to-Digital Converter), with an adaptable gain. Its value has been set at 2/3 in this study. The
@@ -210,19 +213,21 @@ constitutes a potential hazard. We therefore recommend adding a 1.5-A fuse betwe
:figclass: align-center
Measurement board
-
-Implementation
-==============
-
+
+b) Implementation
+--------------------------------
The measurement board must be printed using the PCB file (Source file repository), with components soldered onto
it by following the steps described below and illustrated in the following figure :
-
* Step no. 1: installation of the 1-Kohm resistors with an accuracy of ± 1%.
* Step no. 2: installation of the 1.5-Kohm resistors with an accuracy of ± 1%.
-* Step no. 3: installation of both the black female 1 x 10 header and the 7-blue screw terminal blocks
-* Step no. 4: installation of the 50-Ohm reference resistor ± 0.1%
-* Step no. 5: addition of both the ADS115 directly onto the header (pins must be plugged according to the figure) and the LM358N operational amplifiers (pay attention to the direction).
+* Step no. 3: test divider bridge
+
+ UNDERconstruction
+
+* Step no. 4: installation of both the black female 1 x 10 header and the 7-blue screw terminal blocks
+* Step no. 5: installation of the 50-Ohm reference resistor ± 0.1%
+* Step no. 6: addition of both the ADS115 directly onto the header (pins must be plugged according to the figure) and the LM358N operational amplifiers (pay attention to the direction).
1-Kohm and 1.5-Kohm resistors apply to the divider bridge. If, for example, you prefer using a weaker
or stronger power supply, it would be possible to adjust the divider bridge value by simply modifying these resistors.
@@ -248,8 +253,8 @@ place a fuse holder with a 1.5-A fuse for safety purposes.
Measurement board installation with Raspberry Pi
-Current injection
-=================
+Current injection board
+=======================
To carry out the electrical resistivity measurement, the first step consists of injecting current into the ground.
In our case, a simple 12-V lead-acid battery is used to create an electrical potential difference that results
diff --git a/sphinx/build/html/index.html b/sphinx/build/html/index.html
index a5ba7e04..22914225 100644
--- a/sphinx/build/html/index.html
+++ b/sphinx/build/html/index.html
@@ -191,7 +191,7 @@
<li class="toctree-l2"><a class="reference internal" href="page1.html#the-philosophy-of-ohmpi">The philosophy of Ohmpi</a></li>
<li class="toctree-l2"><a class="reference internal" href="page1.html#technical-data">Technical data</a></li>
<li class="toctree-l2"><a class="reference internal" href="page1.html#raspberry-pi-configuration">Raspberry Pi configuration</a></li>
-<li class="toctree-l2"><a class="reference internal" href="page1.html#measurement-and-injection-board-developpement">Measurement and Injection board developpement</a></li>
+<li class="toctree-l2"><a class="reference internal" href="page1.html#assembly-of-the-measuring-current-injection-cards-and-connection-with-the-raspberry-pi">Assembly of the measuring/current injection cards, and connection with the Raspberry Pi</a></li>
<li class="toctree-l2"><a class="reference internal" href="page1.html#multiplexer-implentation">Multiplexer implentation</a></li>
<li class="toctree-l2"><a class="reference internal" href="page1.html#electrode-connection">Electrode connection</a></li>
<li class="toctree-l2"><a class="reference internal" href="page1.html#operating-instruction">Operating instruction</a></li>
diff --git a/sphinx/build/html/page1.html b/sphinx/build/html/page1.html
index 5f6564a3..752cd38d 100644
--- a/sphinx/build/html/page1.html
+++ b/sphinx/build/html/page1.html
@@ -92,10 +92,13 @@
<li class="toctree-l3"><a class="reference internal" href="#activate-virtual-environnement-on-thonny-python-ide-on-rapberry-pi">Activate virtual environnement on Thonny (Python IDE) (on Rapberry Pi)</a></li>
</ul>
</li>
-<li class="toctree-l2"><a class="reference internal" href="#measurement-and-injection-board-developpement">Measurement and Injection board developpement</a><ul>
-<li class="toctree-l3"><a class="reference internal" href="#electrical-resistivity-measurements">Electrical resistivity measurements</a></li>
-<li class="toctree-l3"><a class="reference internal" href="#implementation">Implementation</a></li>
-<li class="toctree-l3"><a class="reference internal" href="#current-injection">Current injection</a></li>
+<li class="toctree-l2"><a class="reference internal" href="#assembly-of-the-measuring-current-injection-cards-and-connection-with-the-raspberry-pi">Assembly of the measuring/current injection cards, and connection with the Raspberry Pi</a><ul>
+<li class="toctree-l3"><a class="reference internal" href="#electrical-resistivity-measurements-board">Electrical resistivity measurements board</a><ul>
+<li class="toctree-l4"><a class="reference internal" href="#a-description">a) Description</a></li>
+<li class="toctree-l4"><a class="reference internal" href="#b-implementation">b) Implementation</a></li>
+</ul>
+</li>
+<li class="toctree-l3"><a class="reference internal" href="#current-injection-board">Current injection board</a></li>
<li class="toctree-l3"><a class="reference internal" href="#frist-four-electrodes-resistivity-mesurement">Frist four electrodes resistivity mesurement</a></li>
</ul>
</li>
@@ -319,10 +322,12 @@ to leave the virtual environment simply type:</p>
<p>9- Close thonny to save modifications</p>
</div>
</div>
-<div class="section" id="measurement-and-injection-board-developpement">
-<h2>Measurement and Injection board developpement<a class="headerlink" href="#measurement-and-injection-board-developpement" title="Permalink to this headline">¶</a></h2>
-<div class="section" id="electrical-resistivity-measurements">
-<h3>Electrical resistivity measurements<a class="headerlink" href="#electrical-resistivity-measurements" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="assembly-of-the-measuring-current-injection-cards-and-connection-with-the-raspberry-pi">
+<h2>Assembly of the measuring/current injection cards, and connection with the Raspberry Pi<a class="headerlink" href="#assembly-of-the-measuring-current-injection-cards-and-connection-with-the-raspberry-pi" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="electrical-resistivity-measurements-board">
+<h3>Electrical resistivity measurements board<a class="headerlink" href="#electrical-resistivity-measurements-board" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="a-description">
+<h4>a) Description<a class="headerlink" href="#a-description" title="Permalink to this headline">¶</a></h4>
<p>To measure electrical resistivity with Raspberry Pi, an ADS1115 was introduced, as proposed by Florsch [7]. The ADS1115
is a 16-bit ADC (Analog-to-Digital Converter), with an adaptable gain. Its value has been set at 2/3 in this study. The
input signal value could lie between - to + 6.114 V. The ADS1115 is mounted on a board adapted from an in-house design.
@@ -359,16 +364,21 @@ constitutes a potential hazard. We therefore recommend adding a 1.5-A fuse betwe
<p class="caption"><span class="caption-text">Measurement board</span><a class="headerlink" href="#id1" title="Permalink to this image">¶</a></p>
</div>
</div>
-<div class="section" id="implementation">
-<h3>Implementation<a class="headerlink" href="#implementation" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="b-implementation">
+<h4>b) Implementation<a class="headerlink" href="#b-implementation" title="Permalink to this headline">¶</a></h4>
<p>The measurement board must be printed using the PCB file (Source file repository), with components soldered onto
it by following the steps described below and illustrated in the following figure :</p>
-<ul class="simple">
+<ul>
<li><p>Step no. 1: installation of the 1-Kohm resistors with an accuracy of ± 1%.</p></li>
<li><p>Step no. 2: installation of the 1.5-Kohm resistors with an accuracy of ± 1%.</p></li>
-<li><p>Step no. 3: installation of both the black female 1 x 10 header and the 7-blue screw terminal blocks</p></li>
-<li><p>Step no. 4: installation of the 50-Ohm reference resistor ± 0.1%</p></li>
-<li><p>Step no. 5: addition of both the ADS115 directly onto the header (pins must be plugged according to the figure) and the LM358N operational amplifiers (pay attention to the direction).</p></li>
+<li><p>Step no. 3: test divider bridge</p>
+<blockquote>
+<div><p>UNDERconstruction</p>
+</div></blockquote>
+</li>
+<li><p>Step no. 4: installation of both the black female 1 x 10 header and the 7-blue screw terminal blocks</p></li>
+<li><p>Step no. 5: installation of the 50-Ohm reference resistor ± 0.1%</p></li>
+<li><p>Step no. 6: addition of both the ADS115 directly onto the header (pins must be plugged according to the figure) and the LM358N operational amplifiers (pay attention to the direction).</p></li>
</ul>
<p>1-Kohm and 1.5-Kohm resistors apply to the divider bridge. If, for example, you prefer using a weaker
or stronger power supply, it would be possible to adjust the divider bridge value by simply modifying these resistors.
@@ -384,8 +394,9 @@ place a fuse holder with a 1.5-A fuse for safety purposes.</p>
<p class="caption"><span class="caption-text">Measurement board installation with Raspberry Pi</span><a class="headerlink" href="#id3" title="Permalink to this image">¶</a></p>
</div>
</div>
-<div class="section" id="current-injection">
-<h3>Current injection<a class="headerlink" href="#current-injection" title="Permalink to this headline">¶</a></h3>
+</div>
+<div class="section" id="current-injection-board">
+<h3>Current injection board<a class="headerlink" href="#current-injection-board" title="Permalink to this headline">¶</a></h3>
<p>To carry out the electrical resistivity measurement, the first step consists of injecting current into the ground.
In our case, a simple 12-V lead-acid battery is used to create an electrical potential difference that results
in current circulating into the ground. The current is injected through electrodes A and B (see Fig. 2). This
diff --git a/sphinx/build/html/searchindex.js b/sphinx/build/html/searchindex.js
index 287a3e28..38bd9184 100644
--- a/sphinx/build/html/searchindex.js
+++ b/sphinx/build/html/searchindex.js
@@ -1 +1 @@
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diff --git a/sphinx/source/page1.rst b/sphinx/source/page1.rst
index 117865b2..eaf48276 100644
--- a/sphinx/source/page1.rst
+++ b/sphinx/source/page1.rst
@@ -164,11 +164,14 @@ If you decided to use a virtual environment, it is necessary to setup Thonny Pyt
9- Close thonny to save modifications
-Measurement and Injection board developpement
-**************************************************************************
+Assembly of the measuring/current injection cards, and connection with the Raspberry Pi
+*****************************************************************************************
-Electrical resistivity measurements
-===================================
+Electrical resistivity measurements board
+==========================================
+
+a) Description
+-----------------------------
To measure electrical resistivity with Raspberry Pi, an ADS1115 was introduced, as proposed by Florsch [7]. The ADS1115
is a 16-bit ADC (Analog-to-Digital Converter), with an adaptable gain. Its value has been set at 2/3 in this study. The
@@ -210,19 +213,21 @@ constitutes a potential hazard. We therefore recommend adding a 1.5-A fuse betwe
:figclass: align-center
Measurement board
-
-Implementation
-==============
-
+
+b) Implementation
+--------------------------------
The measurement board must be printed using the PCB file (Source file repository), with components soldered onto
it by following the steps described below and illustrated in the following figure :
-
* Step no. 1: installation of the 1-Kohm resistors with an accuracy of ± 1%.
* Step no. 2: installation of the 1.5-Kohm resistors with an accuracy of ± 1%.
-* Step no. 3: installation of both the black female 1 x 10 header and the 7-blue screw terminal blocks
-* Step no. 4: installation of the 50-Ohm reference resistor ± 0.1%
-* Step no. 5: addition of both the ADS115 directly onto the header (pins must be plugged according to the figure) and the LM358N operational amplifiers (pay attention to the direction).
+* Step no. 3: test divider bridge
+
+ UNDERconstruction
+
+* Step no. 4: installation of both the black female 1 x 10 header and the 7-blue screw terminal blocks
+* Step no. 5: installation of the 50-Ohm reference resistor ± 0.1%
+* Step no. 6: addition of both the ADS115 directly onto the header (pins must be plugged according to the figure) and the LM358N operational amplifiers (pay attention to the direction).
1-Kohm and 1.5-Kohm resistors apply to the divider bridge. If, for example, you prefer using a weaker
or stronger power supply, it would be possible to adjust the divider bridge value by simply modifying these resistors.
@@ -248,8 +253,8 @@ place a fuse holder with a 1.5-A fuse for safety purposes.
Measurement board installation with Raspberry Pi
-Current injection
-=================
+Current injection board
+=======================
To carry out the electrical resistivity measurement, the first step consists of injecting current into the ground.
In our case, a simple 12-V lead-acid battery is used to create an electrical potential difference that results
--
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