Biomedical Engineering Reference
In-Depth Information
herna CAM
herna CAM
32.6
32.6
22.4
22.4
11/03/00 10:19:59 e
=
0.95 Zoom
=
1.0
11/03/00 10:20:04 e = 0.95 Zoom = 1.0
t = 0 sec; t = 5 sec
FIGURE 2.27
IR thermographs of an IPMNC in action. The hot spot starts from the electrode
and propagates toward the tip of the IPMNC strip.
2.2.6
C
RYOGENIC
P
ROPERTIES
OF
IPMNC
In order to determine the cryogenic characteristics of IPMNC sensors and actuators
for harsh space conditions, various samples of IPMNCs were tested in a cryochamber
under very low pressures down to 2 torr and temperatures down to -150
C. This
was done to simulate the harsh, cold, low-pressure environments in space. The results
are depicted in the figures 2.28 through 2.33.
°
2.2.7
I
NTERNAL
AND
E
XTERNAL
C
IRCULATORY
P
ROPERTIES
OF
IPCNC
S
IPCNCs and IPMNCs have been shown to be capable of inducing electrically
controllable autonomous changes in material properties by an intrinsic distributed
40
0.60
Deflection
Te m p erature
20
0
0.50
-20
0.40
-40
-60
0.30
-80
0.20
-100
-120
0.10
-140
-160
0.00
0.00
1.00
2.00
3.00
4.00
5.00
Time (h)
FIGURE 2.28
Deflection characteristics of IPMNC as a function of time and temperature.
