lecture 5

Question 1

purpose of biomechanical measurement

Answer 1

to answer a question about the performers movement

Question 2

what does 3D motion capture require

Answer 2

at least two cameras, calibration object. markers to improve accuracy and lots of patience

Question 3

what are force plates measured in

Answer 3

volts converted to newtons

Question 4

how do force plates measure output 3D and torques

Answer 4

strain guage detect changes in electrical resistance

Question 5

examples of inertial measurement units

Answer 5

accelerometer, gyroscope and magnetometer

Question 6

what is an accelerometer?

Answer 6

detects static (e.g. gravity) and dynamic (movement) forces. can measure linear kinematics

Question 7

what is a gyroscope

Answer 7

detect rate of angular motion and angular kinematics.

Question 8

magnetometer

Answer 8

detects heading according to magnetic south (or north). can be used to orient accel. and gyro readings