Magtrol

PB Series – Powder Brake Dynamometers

PB Series – Powder Brake Dynamometers

Features

• 12 Models with Maximum Torque from 600 mN·m to 1 200 N·m (84 oz·in to 885 lb·ft)
• Braking Power: 150 W to 48 kW
• Stable Braking Torque
• Low Moment of Inertia
• Operation in Either Rotational Direction
• Braking Torque Measurement Integrated
• Integrated Optical Speed Sensor
• Special designs available upon request

Operating Principles

The PB Series – Powder Dynamometers contain, as their name suggests, a magnetic powder. The electrical current passing through the coil generates a magnetic field, which changes the property of the powder, thus producing a smooth braking torque through friction between rotor and stator. The Powder Dynamometers (PB) produce their rated torque at zero speed. The element to be tested can be loaded at standstill to determine the starting torque.

Optical Speed Sensor

Each PB Series Dynamometer has an optical speed sensor delivered as standard. PB 2.7 & PB 43 has an optical speed sensor with a 30-PPR encoder; PB 65, PB 115 & PB 15 has an optical speed sensor with a 60-bits pulse wheel. For higher speed resolution in low speed applications, Magtrol offers a 600-PPR or 6000-PPR encoder as an option.