28.10.1. Displacement Sensor

This sensor is to measure the distance from the center position of sensor to a line drawn along the x-axis of reference marker of track link that is the nearest to the center position of sensor in the range of sensor.

\(\begin{aligned} & \text{DX= }\!\![\!\!\text{ }{{\mathbf{r}}_{\text{b}}}-{{\mathbf{r}}_{\text{s}}}]\cdot \frac{{{\mathbf{X}}_{RM}}}{\left| {{\mathbf{X}}_{RM}} \right|} \\ & \text{DY= }\!\![\!\!\text{ }{{\mathbf{r}}_{\text{b}}}-{{\mathbf{r}}_{\text{s}}}]\cdot \frac{{{\mathbf{Y}}_{RM}}}{\left| {{\mathbf{Y}}_{RM}} \right|} \\ & \text{DX= }\!\![\!\!\text{ }{{\mathbf{r}}_{\text{b}}}-{{\mathbf{r}}_{\text{s}}}]\cdot \frac{{{\mathbf{Z}}_{RM}}}{\left| {{\mathbf{Z}}_{RM}} \right|} \\ & \text{DX=}\sqrt{{{\left( {{\mathbf{r}}_{\text{b}}}-{{\mathbf{r}}_{\text{s}}} \right)}^{2}}} \\ \end{aligned}\)

where,
\({{\mathbf{r}}_{\text{b}}}\) is the position of the closest part of the track link in the range of sensor
\({{\mathbf{r}}_{\text{s}}}\) is the position of sensor center.

  • RM is the reference marker of the sensing direction of sensor

    ../_images/image1857.png

    Figure 28.113 Displacement Sensor

    ../_images/image1868.png

    Figure 28.114 Sensing Position

28.10.1.1. Modeling Options

The user can create a displacement sensor as follows.

  • Marker, Distance

    • Marker: Selects a marker to define the center of displacement sensor.

    • Distance: Defines a range of region to measure output.

    Note

    The user should define the sensing target entity by using Displacement Sensor property page.

  • Point, Distance

    • Point: Selects a point on a body to define the center of displacement sensor. A marker is created on the point.

    • Distance: Defines a range of region to measure output.

    Note

    The user should define the sensing target entity by using Displacement Sensor property page.

28.10.1.2. Properties

../_images/image1888.png

Figure 28.115 Displacement Sensor property page

The Displacement Sensor property page is shown in Figure 28.115. The parameters are explained below.

  • Mother Body: Select the body attached the sensor.

  • Sensing Entity: Select the assembly of belt system to measure the output.

  • Sensor Marker: Enter the center position of sensor.

  • Reference Marker: Define the sensing direction of sensor.

  • Range: Enter the range of region to measure the output.

  • Color: Select the color of sensor.