A
Alvin Chen
Hello everyone,
We are trying to design an experiment for performance testing on a medical robotics device. Our goal is to optimize across environment variability, specifically the simulated variability of human skin. My questions relate to the Taguchi approach.
1. Is it poor practice to have a much larger outer array than inner? For example, an L16 (five factors, four levels) outer array and an L4 or L9 inner array? If not, what is the reason for this? Would a single array approach be better than the traditional inner-outer cross array?
2. Is it poor practice to combine completely independent influences within one experiment? In our case, the inner array consists of control factors for optical/imaging performance, as well as control factors for mechanical/robotic performance. Similarly, the outer array consists of both optical variables and mechanical variables (optical and mechanical properties of skin). I am fairly certain that the optical control factors will influence only the optical noise factors, and likewise for the mechanical factors. Given this, should I run two separate experiments, or is it ok to run a single larger grid?
Thank you in advance for your time.
Alvin Chen
We are trying to design an experiment for performance testing on a medical robotics device. Our goal is to optimize across environment variability, specifically the simulated variability of human skin. My questions relate to the Taguchi approach.
1. Is it poor practice to have a much larger outer array than inner? For example, an L16 (five factors, four levels) outer array and an L4 or L9 inner array? If not, what is the reason for this? Would a single array approach be better than the traditional inner-outer cross array?
2. Is it poor practice to combine completely independent influences within one experiment? In our case, the inner array consists of control factors for optical/imaging performance, as well as control factors for mechanical/robotic performance. Similarly, the outer array consists of both optical variables and mechanical variables (optical and mechanical properties of skin). I am fairly certain that the optical control factors will influence only the optical noise factors, and likewise for the mechanical factors. Given this, should I run two separate experiments, or is it ok to run a single larger grid?
Thank you in advance for your time.
Alvin Chen