See HBM's new electric motor and inverter test system

The HBM eDrive Test System is a robust, integrated system for measuring the performance and efficiency of electric motors and inverters. The eDrive testing system combines: HBM's T12 or T40 Torque Sensor, which the company claims are the most accurate torque transducers in their respective classes; the GEN3i Data Acquisition System; and, as an option, the QuantumX 1609B Temperature Satellite. The overall system provides synchronous, dynamic and continuous acquisition of mechanical and electrical signals from the electric drive system under test. In addition to making temperature, torque and rotational measurements, the eDrive Test System can also make measurements from as many as 18 current and voltage channels at voltages up to 1000V, at a sampling rate of up to 2MS/s.

HBM's system also incorporates an intuitive eDrive software GUI that has been developed exclusively for electric motor and inverter testing and for noise immunity. In addition to providing raw data, the new system also provides real-time results, such as true, reactive and apparent power and efficiency values.

Mike Hoyer, an HBM Applications Engineer, comments: "HBM's new eDrive package is the only completely integrated test solution on the market that allows engineers to record, verify and study both electrical and mechanical parameters under dynamic conditions."

Data acquisition systems and sensors

Also on show at the Sensors and Instrumentation exhibition will be HBM's range of data acquisition systems and sensors, including force sensors for measuring static and dynamic tensile and compressive loads - with virtually no displacement.

HBM will also exhibit its new FIT7A digital Load Cell. Specifically designed to meet the needs of demanding requirements of weighing in modern manufacturing lines, the FIT7A is suitable for use in a wide range of production environments requiring dynamic weighing, sorting, filling and dosing.

Based on HBM strain gauge technology, the innovative new sensor features class C4 accuracy per OIML R60 and a maximum scale division Y of up to 25,000 and addresses the problem of bottlenecks, which can often slow down production rates.

In comparison with existing sensors that are only able to handle up to 100 weighings per minute, sophisticated new technology incorporated within the FIT7A means it is now possible to perform 180 weighings per minute, whic can increase production speed and reduce costs considerably.

To illustrate its impressive test and measurement capabilities, HBM will be exhibiting a model truck fitted with HBM strain gauges and data acquisition equipment.

Visitors are also invited to attend two presentations at the Sensors and Instrumentation Exhibition. Regarding the new integrated eDrive Test System for Electric Motor and Inverter Analysis, Dick Eberlein, HBM GmbH Product Manager for DAQ Systems, will be looking at What drives electrical machines and inverters: More efficient analysis with eDrive Testing by HBM. Thomas Kleckers, HBM GmbH Product Manager for Force Sensors, will be discussing the main influences of measurement uncertainty in a force measurement chain and the possibilities to optimise the measurement chain in his presentation Key factors of measurement uncertainty with force measurements - what are the key factors?

For further information about the eDrive Test System and HBM's data acquisition systems and sensors, go to www.hbm.com or visit the company on stand E26 at the Sensors and Instrumentation Exhibition.