MSD Mega Speed Dynamometer

Support & Downloads

Product Description

The MSD – Mega Speed Dynamometer was developed for testing very high speed motors such as BLDC, dental turbine and surgical tools. The braking affect is based on an Eddy Current induced aluminum disc directly mounted on the MUT (Motor Under Test) shaft. Torque is measured frictionless by a Reaction Torque Sensor mounted under the test bench surface. Due to the thermal effect on the disc, the Mega Speed Dynamometer is not suitable for endurance testing, but can be utilized to generate a fast curve or perform point to point testing. An infrared sensor monitors the temperature of the disc and can stop the test in case of overheating. The disc can be designed and sized according to the motor parameters. The system is contactless therefore alignment is not critical.  Due to this, the system has very low inertia and therefore no residual or drag torque thus having less influence on testing parameters. The speed limitation is based on the Motor Under Test and its ability to drive the disc. Systems reaching speeds of 320 000 rpm have already been manufactured.

M-Test LabVIEWTM based software controls the system and captures the test data. It allows the programing set up of a dedicated test profile. Every Mega Speed Dynamometer will be designed around motor characteristics and performances to match the best possible test results.   Specific motor fixture may need to be designed to suit each motor form and dimension.

The Mega Speed Dynamometer (MSD Series) enhances Magtrol’s expertise in high-speed applications and ideally complements 1 WB 23 and 1 WB 27 Dynamometers enabling motor testing up to 100 000 rpm

Features

  • Test Bench with Mechanical Protection
  • Contactless Eddy-Current Brake System
  • Speed Sensor
  • Infra Red Temperature Sensor
  • Built-in Reaction Torque Sensor (RT 200 Series)
  • Available in 20 or 50 mN·m (other ranges available on request)
  • Accuracy ± 0.2 %
  • Very Low Inertia ~ 8×10-9 Kg·m2
  • No Residual Torque (no bearing) or friction
  • Torque / Speed Acquisition Software (M-TEST)
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                    [post_content] => The Model 5241 is a voltage-controlled power amplifier designed exclusively for Magtrol's Model HD-825 Hysteresis Dynamometer. Because of its double braking system, the HD-825 requires more than 4 amps of power in order to reach full torque. The 5241 (which can provide up to 5 amps of output current) is necessary in order to amplify the power between a 6200 or DSP7000 Controller (which both have a maximum current output of 1 amp) and the HD-825 Dynamometer.
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                    [post_content] => The PCB Power Connection Box is a simple interface connection for powering a motor under test. One end is attached to a (customer-supplied) power supply and the other end is attached, via lead wires, to a test motor.
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                    [post_content] => The TCBS Thermocouple Connection Barrier Strip provides a method of connection the data acquisition device, which is usually installed in the main console, to the device being monitored up to 3 meters away. All eight thermocouples pairs are bundled into a single cable and terminated in a die cast aluminum box with barrier strip jackets for easy connection.

Interconnection errors can be avoided by using the barrier strip with the relevant thermocouple extension or compensation material. The strips are marked to identify the alloy and polarity.

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                    [post_content] => The PC-150 Polarity Changer uses Magtrol’s M-TEST 7 Software to remotely switch the polarity of a DC power supply in order to reverse the direction of the motor under test. When switching polarity, the voltage sense lines will also change in order to maintain the proper polarity on the power supply sense terminals.
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