Thor NT Advanced
Frontal Impact Dummy
Thor NT is a 50th percentile male frontal impact dummy developed
under funding from the NHTSA.  The first prototype was exhibited at
the ESV conference in Melbourne in 1996.  NHTSA's goal for the
contract was to promote harmonisation of this dummy among all users
and so, the dummy has been extensively tested by OEMs and
research laboratories in Europe, Japan and the U.S.  GESAC
manufactures, sells and services this dummy for customers all over
the world.  

Some technical details are provided below.  

Segment Masses               Instrumentation  List
Thor NT Advanced Frontal Impact Dummy
Segment
Mass, Kg
Head
4.58
Neck
1.65
Thorax
23.4
Pelvis
15.2
Upper leg
7.6
Lower leg
3.8
Foot
0.95
Upper arm
2.1
Lower arm
2.3
Total
78.3
Sensor Type
Location
Measures
Accelerometer array [9]
Head
Linear accel,
compute ang. accel
Load cells [5]
Face
Uniaxial Fz load at 5
face locations
Load cell
Rear neck
spring
Compressive load on
rear neck spring
Load cell
Front neck
spring
Compressive load on
front neck spring
Load cell
Upper neck
Fx, Fy,Fz, Mx, My, Mz
Rotary potentiometer
O-C joint
Head - Neck angle
Load cell
Lower neck
Fx, Fy,Fz, Mx, My, Mz
Tri-Axial accel
T-1
Ax, Ay, Az
Tri-Axial accel
Thorax CG
Ax, Ay, Az
CRUX [4]
Thorax
3-D deformation of
ribs.
Uni-axial accel
Upper
Abdomen
Penetration into
upper abdomen
Load cell
T-12
Fx, Fy,Fz, Mx, My, Mz
Tri-axial accel
Pelvis CG
Ax, Ay, Az
DGSP [2]
Lower
Abdomen
3-D deformation of
abdomen at 2 points
Load cell
Pelvis
basin
Left acetabular
loads, Fx, Fy, Fx
Load cell
Pelvis
basin
Right acetabular
loads, Fx, Fy, Fx
Load cell
Femur
Left femur, Fx, Fy,
Fz, Mx, My, Mz
Load cell
Femur
Right femur, Fx, Fy,
Fz, Mx, My, Mz