Biomedical Engineering Reference
In-Depth Information
0.8
C
=
aF
+
b
a
= 0.079242
b
= −0.015967
0.6
0.4
0.2
0
0
2
4
6
8
10
Force (N)
Figure 5.4
The conductance of the FSR versus applied force. A line was fitted to the measured
data using the least squares fitting method
Figure 5.5 shows the block diagram of the program developed by LabVIEW whose
processing software, using Equation 5.3, calculated the force applied to the grasped object
and handle, as well as the jaw angle.
To investigate the profile of the load transferred to different materials, several soft mate-
rials were prepared and their softness measured using industrial durometers (for further
information about durometers, refer to Chapter 4). The materials and their corresponding
Vo
1
Vo
2
Vp V
+
DAQ
60 Hz
Filter
Calculate
Object's
Force
Calculate
Handle
Force
Calculate
Displacement
Calculate
Angle
Calculate
Object
Pressure
Display
Force
Display
Angle
Display
Object
Pressure
Display
Force-Angle
Figure 5.5
The block diagram of the program developed in LabVIEW
