30.7.2. Speed Sensor
This sensor is to measure the velocity of chain link that pass the range of speed sensor and is the nearest to speed sensor.
\(\mathrm{v}_{0}=\mathrm{f}_s^{\mathrm{T}} (\mathrm{V}_{\mathrm{c}}-\mathrm{V}_{\mathrm{s}})\)
where, \(\mathrm{v}_{0}\) is the result of sensor. \(\mathrm{V}_{c}\) is the velocity of the center marker of the closest body of sheet bodies in the range of the sensor and \(\mathrm{V}_{s}\) is the velocity of sensor center position. \(\mathrm{f}_s^{\mathrm{T}}\) is the specified direction of the sensor.
![../_images/image1453.png](../_images/image1453.png)
Figure 30.106 Speed Sensor
30.7.2.1. Modeling Options
The user can create a speed sensor as follows.
Point, Direction, Distance
Point: Selects a point on a body to define the center of speed sensor.
Direction: Defines a direction of speed sensor.
Distance: Defines a range of region to measure output.
Note
The user should define the sensing target entity by using Speed Sensor property page.
Body, Point, Direction, Distance
Body: Selects a body to define the parent body of speed sensor.
Point: Selects a point to define the center of speed sensor.
Direction: Defines a direction of speed sensor.
Distance: Defines a range of region to measure output.
Note
The user should define the sensing target entity by using Speed Sensor property page.
Assembled Body, Point, Direction, Distance
Assembled Body: Selects an assembly as a target entity.
Point: Selects a point to define the center of speed sensor.
Direction: Defines a direction of speed sensor.
Distance: Defines a range of region to measure output.
Body, Assembled Body, Point, Direction, Distance
Body: Selects a body to define the parent body of speed sensor.
Assembled Body: Selects an assembly as a target entity.
Point: Selects a point to define the center of speed sensor.
Direction: Defines a direction of speed sensor.
Distance: Defines a range of region to measure output.
30.7.2.2. Properties
![../_images/image1472.png](../_images/image1472.png)
Figure 30.107 Speed Sensor property page
The Speed Sensor property page is shown in Figure 30.107. The parameters are explained below.
Mother Body: Select the body that attached sensor.
Sensing Entity: Select the assembly of chain system to measure output.
Position: Enter the center position of sensor.
Range: Enter the range of region to measure output.
Color: Select the color of sensor.