Mass Filter

The magnetic centrifugal mass filter

An RFQ Mass Filter for SHIPTRAP

At SHIPTRAP, exotic nuclei produced in fusion reactions and separated from the primary beam in the velocity filter SHIP are stopped in a gas-filled stopping cell. The ions are extracted, bunched and transferred to a double Penning trap system, where their masses can be measured. Contaminant ions created in the gas-filled stopping cell and abundantly produced reaction products different from the...

Thermally induced filter bias in TEOM mass measurement.

Researchers at the National Institute for Occupational Safety and Health (NIOSH) have long used stationary tapered element oscillating microbalances (TEOMs) in laboratory settings. They have served to assess the mass concentration of laboratory-generated particulates in experimental dust chambers and they provide a reference method for comparison with other particulate-measuring instruments. Cu...

Practical considerations in realizing a Magnetic Centrifugal Mass Filter

Vehicle Mass and Road Grade Estimation using Kalman Filter

This master thesis presents a method for on-line estimation of vehicle mass and road grade using Kalman filter. Many control strategies aiming for better fuel economy, drivability and safety in today’s vehicles rely on precise vehicle operating information. In this context, vehicle mass and road grade are crucial parameters. The method is based on an extended Kalman filter (EKF) and a longitudi...