CurrentSensor

Ideal ammeter measuring the electrical current flowing between its two pins.

This component models an ideal ammeter, designed to be placed in series within an electrical circuit to measure the current. A key characteristic of an ideal ammeter is that it offers no internal resistance, and consequently, there is no voltage drop across its terminals ($p.v=n.v$). The current $i$, which flows from the positive pin ($p$) to the negative pin ($n$), is measured and made available as a real output signal. The current entering the positive pin is equal to this measured current ($p.i=i$), and to ensure current conservation, the current entering the negative pin is its negation ($n.i=-i$), meaning $i$ flows out of the negative pin. Here, $p.v$ and $n.v$ are the pin voltages, and $p.i$ and $n.i$ are the pin currents.

Usage

CurrentSensor()

Connectors

• p - (Pin)

• n - (Pin)

• i - This connector represents a real signal as an output from a component (RealOutput)

Behavior

$$\begin{array}{rl}\mathtt{p}\mathtt{.}\mathtt{v}\left(t\right)& =\mathtt{n}\mathtt{.}\mathtt{v}\left(t\right)\\ \mathtt{p}\mathtt{.}\mathtt{i}\left(t\right)& =i\left(t\right)\\ \mathtt{n}\mathtt{.}\mathtt{i}\left(t\right)& =-i\left(t\right)\end{array}$$

Source

# Ideal ammeter measuring the electrical current flowing between its two pins.
#
# This component models an ideal ammeter, designed to be placed in series within an electrical circuit
# to measure the current. A key characteristic of an ideal ammeter is that it offers no internal
# resistance, and consequently, there is no voltage drop across its terminals ($p.v = n.v$).
# The current $i$, which flows from the positive pin ($p$) to the negative pin ($n$),
# is measured and made available as a real output signal. The current entering the positive pin
# is equal to this measured current ($p.i = i$), and to ensure current conservation,
# the current entering the negative pin is its negation ($n.i = -i$), meaning $i$
# flows out of the negative pin. Here, $p.v$ and $n.v$ are the pin voltages,
# and $p.i$ and $n.i$ are the pin currents.
component CurrentSensor
  # Positive electrical pin of the sensor.
  p = Pin() [{
    "Dyad": {
      "placement": {"icon": {"iconName": "pos", "x1": -50, "y1": 450, "x2": 50, "y2": 550}}
    }
  }]
  # Negative electrical pin of the sensor.
  n = Pin() [{
    "Dyad": {
      "placement": {"icon": {"iconName": "neg", "x1": 950, "y1": 450, "x2": 1050, "y2": 550}}
    }
  }]
  # Output signal representing the measured current flowing from pin `p` to pin `n`.
  i = RealOutput() [{
    "Dyad": {
      "placement": {
        "icon": {"iconName": "pos", "x1": 450, "y1": 950, "x2": 550, "y2": 1050, "rot": 90}
      }
    }
  }]
relations
  p.v = n.v
  p.i = i
  n.i = -i
metadata {
  "Dyad": {
    "labels": [
      {"label": "$(instance)", "x": 500, "y": 1100, "rot": 0},
      {"label": "A", "x": 500, "y": 713, "rot": 0}
    ],
    "icons": {"default": "dyad://ElectricalComponents/TwoPinSensor.svg"}
  }
}
end

Flattened Source

# Ideal ammeter measuring the electrical current flowing between its two pins.
#
# This component models an ideal ammeter, designed to be placed in series within an electrical circuit
# to measure the current. A key characteristic of an ideal ammeter is that it offers no internal
# resistance, and consequently, there is no voltage drop across its terminals ($p.v = n.v$).
# The current $i$, which flows from the positive pin ($p$) to the negative pin ($n$),
# is measured and made available as a real output signal. The current entering the positive pin
# is equal to this measured current ($p.i = i$), and to ensure current conservation,
# the current entering the negative pin is its negation ($n.i = -i$), meaning $i$
# flows out of the negative pin. Here, $p.v$ and $n.v$ are the pin voltages,
# and $p.i$ and $n.i$ are the pin currents.
component CurrentSensor
  # Positive electrical pin of the sensor.
  p = Pin() [{
    "Dyad": {
      "placement": {"icon": {"iconName": "pos", "x1": -50, "y1": 450, "x2": 50, "y2": 550}}
    }
  }]
  # Negative electrical pin of the sensor.
  n = Pin() [{
    "Dyad": {
      "placement": {"icon": {"iconName": "neg", "x1": 950, "y1": 450, "x2": 1050, "y2": 550}}
    }
  }]
  # Output signal representing the measured current flowing from pin `p` to pin `n`.
  i = RealOutput() [{
    "Dyad": {
      "placement": {
        "icon": {"iconName": "pos", "x1": 450, "y1": 950, "x2": 550, "y2": 1050, "rot": 90}
      }
    }
  }]
relations
  p.v = n.v
  p.i = i
  n.i = -i
metadata {
  "Dyad": {
    "labels": [
      {"label": "$(instance)", "x": 500, "y": 1100, "rot": 0},
      {"label": "A", "x": 500, "y": 713, "rot": 0}
    ],
    "icons": {"default": "dyad://ElectricalComponents/TwoPinSensor.svg"}
  }
}
end

Test Cases

This is setup code, that must be run before each test case.

using ElectricalComponents
using ModelingToolkit, OrdinaryDiffEqDefault
using Plots
using CSV, DataFrames

snapshotsdir = joinpath(dirname(dirname(pathof(ElectricalComponents))), "test", "snapshots")

"/home/actions-runner-10/.julia/packages/ElectricalComponents/bmmPM/test/snapshots"

Related

• Examples

• Experiments

• Analyses

• Tests

  • SensorsTest