# Rotational Slip Meter for the Measurement of Coefficient of Friction of Walking Surfaces

9-5-2019 3:30 PM

9-5-2019 5:00 PM

Event

## Keywords

Slip and Fall, Tribometer, Slip Meter, Friction, Coefficient of Friction, Measuring friction

## Description

The measurement of coefficient of friction is an important issue in different fields: Walkways safety, Vehicle stopping distance, Robot’s Gripper design, Manufacturing, and more. The measurements have to be accurate, repeatable and most of all identical across different measuring devices. Moreover, the measurement devices should read the correct value of under different surface conditions: Dry, Wet or Contaminated.

This paper describes a rotational slip meter where the pad (or foot) is mounted on a horizontally rotating arm with an axis perpendicular to the tested surface. The pad is installed at a given distance from the arm’s axis of rotation and its surface maintains contact with the tested surface with a given pressure. The static Coefficient of friction (COF) is determined by measuring the torque required to initiate the rotation of the arm. An important feature of this device that the COF can be measured in any direction without the need to reorient the device.

## DOI

https://doi.org/10.5038/PMJP3213

## Share

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May 9th, 3:30 PM May 9th, 5:00 PM

Rotational Slip Meter for the Measurement of Coefficient of Friction of Walking Surfaces

The measurement of coefficient of friction is an important issue in different fields: Walkways safety, Vehicle stopping distance, Robot’s Gripper design, Manufacturing, and more. The measurements have to be accurate, repeatable and most of all identical across different measuring devices. Moreover, the measurement devices should read the correct value of under different surface conditions: Dry, Wet or Contaminated.

This paper describes a rotational slip meter where the pad (or foot) is mounted on a horizontally rotating arm with an axis perpendicular to the tested surface. The pad is installed at a given distance from the arm’s axis of rotation and its surface maintains contact with the tested surface with a given pressure. The static Coefficient of friction (COF) is determined by measuring the torque required to initiate the rotation of the arm. An important feature of this device that the COF can be measured in any direction without the need to reorient the device.