Wc filter is used for the assessment of the influence of the vibration signal on the human body during the seat-
back measurements. It conforms with ISO 2631-1-97 and ISO 8041-1:2017
“Wc” filter characteristics
Wj filter is used for the assessment of the influence of the vibration signal under the head of the recumbent
person. It conforms with ISO 2631-1-97 and ISO 8041-1:2017
“Wj” filter characteristics