The news of MAGTROL SA

BASED ON CUSTOMER NEEDS AND SPECIFICATIONS, MAGTROL BUILT A MULTI-LINE TURNKEY MOTOR TEST SYSTEM WITH INTEGRATED COGGING, BACK-EMF, FRICTION AND PERFORMANCE TESTS.

FEATURES:

• All-in-One Turnkey Test Bench
• 5 different testing stations / lines
• 3 dynamometers range for optimized performance load testing
• Cogging Test System
• Back-EMF Test System
• Friction Test System
• Performance Load Test System
• High Speed Dynamometer Controller
• Sliding platform for ergonomic sequential testing process
• Precision adjustable motor mount
• Controllable motor power supply
• Integrated high-end power analyzer
• Specific and dedicated Software for all different tests
• Thermocouple connection interface
• Compact Integration on common Test Bench (easily movable)
• Plug & Play Test System
• User-friendly processing.

Five testing lines, mounted side by side on a common table, allow for easy and fast testing of electric motor parameters. The Motor Under Test (MUT) is held in place by a concentric quick-change fastener, mounted on sliding rails to allow precise positioning in front of each testing station.

At the 1^st line, a CTS 100 Cogging Test System allows the measurement of friction and cogging torque through a TS 100 Torque Sensor (50 mN·m; encoder 5000 PPR - Pulse per Revolution; index 1 PPR). At this station, the MUT (not powered) is slowly driven (speed 1 ... 10 rpm) and the torque versus angle position is recorded, allowing precise measurements of the motor magnet’s effect around 360° of rotation with torque detection better than 1 mN·m of resolution. Linear or Polar as well as FFT graphs can be displayed or printed.

In order to keep the angular position, the MUT remains connected to the TS Series Torque Sensor and both move along the sliding rails to the 2^nd station for Back-EMF testing . At this step, the tested sample is driven ≤10000 rpm, while current and tension of Back-EMF (Back Electromagnetic Forces) are recorded. Testing software correlates Cogging versus Back-EMF system at the same angle position.

The platform that supports the motor under test is then disconnected from the torque sensor and can move to the next testing stations which have their own torque and speed measuring capabilities.

The 3 remaining test lines are equipped with different dynamometers for load performance testing of the Motor Under Test. The dynamometers execute loading profiles while torque, speed, current, tension and temperature (amongst other parameters) are recorded, allowing the calculation of Input/Output Power and issue Efficiency Curves of the motor. This specific Customized Motor Test System (CMTS) is composed of an HD 106 Hysteresis Dynamometer (18mN·m; 7W; ≤30000 rpm), a WB23 Eddy-Current Dynamometer (80 mN·m; 500 W; ≤100000 rpm) and a 4 WB 2.7 Eddy-Current Dynamometer (0.6N·m; 1kW; ≤50000 rpm). This customized combination allows a wide range of the customer’s devices to be tested. Each test line can be activated by a switch selector on the system’s front panel as well as configurated through the software.

The test bench integrates a high-end 4 channel Zimmer LMG 641 power analyzer, with precision current sensors. In the 3 last testing stations, the device under test is powered by a DC power supply integrated in the bench and controlled by the software. The DSP 7001 controller provides a closed loop regulation either in torque or speed mode along the testing profile.

Easy to use, Magtrol M-Test Software controls the system and enables the user to quickly set test parameters and sequences in torque or speed control, curve mode, closed loop or open loop. Test setups can be saved and recalled any time. It allows the acquisition of complete testing data (torque, speed, current, efficiency, power input, power output, temperature, resistance), temperature rise and related data during motor operation. M-TEST Software has the flexibility to test a variety of motors in a multitude of configurations. The data generated from this user-friendly program can be stored, displayed and printed in tabular, graphical formats or universal data reports and is easily imported into a spreadsheet. Clear and professional reports can be issued.

The Customized Motor Test System includes protection covers with safety switches preventing the system to run while the doors are open. A continuity testing has been conducted for assuring the appropriate grounding of each device, in compliance with the highest European Health & Safety regulation.

This realization shows large Magtrol’s competencies and flexibilities to supply high-end state of the art Motor Test Benches according to specific customer needs.

MAGTROL INTRODUCES AN EXTENSION TO THE TS 100 SERIES TORQUE TRANSDUCER RANGE. THREE NEW MODELS ARE NOW AVAILABLE: TS 199 (0.02 N·m), TS 112 (200 N·m) AND TS 113 (500 N·m). MAGTROL’S TS SERIES FAMILY OF IN-LINE TORQUE SENSORS NOW INCLUDES 14 STANDARD MODELS COVERING A RANGE FROM 0.02 N·m UP TO 500 N·m.

Introduced in 2019, this latest-generation torque sensor combines high technology, robustness and reliability. It can be easily integrated into motor test benches as well as standard or customized torque measurement systems. Since its launch, it has enjoyed widespread success and approval from measurement professionals. Its excellent price/performance ratio, flexibility and high reliability are much appreciated by our customers.

A direct descendant of the long-renowned TM 300 Series, one of its innovations lies in its dual analog and USB signal outputs, which can be used simultaneously. For example, one channel for data acquisition and the other for closed-loop control of a shaft line.

Depending on the model, the TS 100 Series Torque Transducer incorporates a 360, 400 or 700 PPR (Pulse Per Revolution) encoder for angular resolution down to 0.129° and a reference index of 1 PPR. Encoders with 1000 or 5 000 PPR are available on request for models up to 100 N·m. These further improve angular resolution where necessary, for example in low-speed applications.

The power transmission from the stator to the rotor is provided by a high-frequency rotary transformer with low inertia. An ergonomic display system consisting of three color LEDs continuously inform the user about the operating status of the device. The TORQUE measurement acquisition software is available for free and can be directly downloaded from the Magtrol website. The entire system offers an easy-to-use “Plug & Play” system.

The TS 100 Series Torque Sensors provides measurement up to 200% of its nominal value. With 300% of nominal torque as the overload limit, the TS transducer has the highest overload reserve on the market. Its metrology allows the sensor to reach an accuracy of 0.05% (combined error).

This new range of torque meters strengthens Magtrol’s offering in the torque measurement field, providing an excellent complement to the renowned TM 300 Series (up to 400% overload limit and high-speed versions up to 50 000 rpm), TF 300 Series (Torque Flanged Sensors) and RT Series (Reaction Torque Sensors).

In addition to its activities in the field of torque measurement, Magtrol is also renowned for its Customized Motor Test Systems (CMTS), Hysteresis Brakes and Clutches, Load Measuring Pins as well as Load Cells and Displacement Transducers.

Magtrol’s New PSD Portable Sensor Display is a stand-alone unit powered by either 3 AA batteries or via USB. It is very compact (~160 x 80 x 50 mm) and can be easily carried and used on a civil engineering site, in a research & development office or laboratory, as well as in production shop. Its case is ergonomic, waterproof (IP54) and protected by a rubber shock absorber. It is suitable for any type of strain gauge transducer including a load cell, load pin or reaction torque sensor. The internal amplifier can process a signal range of ±0.3 … 5 mV/V.

The new PSD Portable Display is very flexible and complies with the highest specifications in terms of accuracy (0.01%) and measurement frequency (1600/s). It allows the storage of up to 16 programmable measurement ranges which can be configured either directly on the unit or via its USB interface and dedicated software (included). Multiple force or torque transducers can be connected simultaneously and the data, as well as the minimum or maximum value, can be displayed. The new device is delivered in a protective case allowing for safe and easy transportation. It replaces the old generation GM80 Amplifier.

The PSD is a great complement to all types of strain gauge transducers for which a mobile display is necessary, especially Magtrol’s Anchor Load Cells (HRL Series), Cable Sensors (SK-02), Load Pins (LB Series) and Miniature Load Pins (MB-02 Series) or Reaction Torque Sensors (RT Series).

With the introduction of model TS 109 to TS 111 covering the measurement ranges from 20 N·m to 100 N·m, Magtrol is expanding the TS Series Torque Transducer range.  Eleven nominal ranges are now available covering measuring ranges from 50 mN·m to 100 N·m. The TS 112 and TS 113 models will also be launched by the end of the year; this will extend the nominal range up to 500 N·m.

The new torque meter offers a dual signal output, analog and USB, which can be used simultaneously. e.g. one channel for data acquisition and the other for closed-loop control of the drive line.

The sensor integrates an encoder (360 resp. 400 pulses per revolution) allowing an angular resolution up to 0.25° and offering a reference index (1 pulse per revolution). Encoders with 1 000 or 5 000 pulses (available on request), further improve the angular resolution if required.  The power transmission from the stator to the rotor is provided by a high-frequency rotary transformer with low inertia. A system consisting of three colors LEDs continuously informs the user about the operating status of the device. The TORQUE measurement acquisition software is available free of charge and can be directly downloaded from Magtrol’s Web site. The entire system offers an easy-to-use « Plug & Play » system.

The TS torque transducer provides a measurement of up to 200% of its nominal value. With 300% of the nominal torque as overload limit, the TS is one of the transducers with the highest overload reserve on the market. The first family (8 nominal ranges from 50 mN·m to 10 N·m) was introduced in 2019 and quickly conquered the market. Its excellent price/performance ratio is highly appreciated by customers.

This new range strengthens Magtrol’s torque measurement offering, providing an excellent complement to the TM Series (up to 400% overload limit and high-speed versions up to 50 000 rpm), TF Series (flanged torque transducers) and RT Series (reaction torque transducers). In addition to its activities in torque sensors, the company is well known for its motor test systems, brakes and clutches, load pins as well as load cells and displacement sensors.

HRL Series load cells consist of a high quality stainless steel. This compact load cell is designed specifically for heavy duty use on construction sites, with load cells that are available in the range of 600 to 3000 kN. Special designs are available upon request.

The attached shielded cable includes a water-proof connector with cap. Version without connector are available as an option. Cable lengths are customisable according to the installation requirements; for further information please contact us.

The data collected from the strain gauge is proportional to the applied force. The signal is transmitted to the monitoring unit for amplification.

APPLICATION The Magtrol HRL Series load cells can be used to monitor anchor forces in classical and prestressed structures on sites (civil engineering, tunnels...) as well as a range of other static or dynamic measurements, in harsh, tropical, offshore, marine and harbour environments.

Magtrol is proud to announce the launch of the new TS Series Torque Sensor. This new sensor offers two types of communication interfaces, an isolated USB interface and an analog output. Both signals can be utilized simultaneously. For example, control loop data can be acquired using a computer via the USB interface while fast data acquisition can be performed using the analog output.

The sensor integrates an encoder with 360 pulses per revolution with an angular reference index (1/rev).  This allows angular measurement resolution of 0.25°. The energy transmission from the stator to the rotor is assured by a high frequency, low inertia rotary transformer. An LED color code shows the working status of the unit.

Encapsulated in a small compact housing, the sensor spans 8 nominal ranges 0.05 N·m to 10 N·m.

Extended ranges from 20 N·m to 500 N·m will be available in the coming months. The TS Torque Sensor measures dynamic torque loads of up to 200% of its nominal rating. With 300% of rated torque as ultimate overload reserve, the TS sensor offers one of the highest overload capacities on the market.

The TS Sensor enhances Magtrol’s capabilities in torque measurement and compliments the TM Series Torque Transducer (offering an overload limit up to 400% and a high-speed version up 50,000 rpm), the TF Series Torque Flange Sensors and the RT Series Reaction Torque Sensors.

Magtrol offers calibration in its ISO-17025 accredited torque laboratory, and provides factory calibration up to Euramet cg-14 certificates. In addition to its advancement in Torque Sensors, Magtrol is world renowned in providing Motor Testing Systems, Brakes & Clutches, Load pins, Load cells and Displacement Sensors.

 The drag torque or Detent Torque is an important parameter in permanent mag­net (PM) motors, especially in a PM servo motor system. Detent Torque of PM motors is composed of Cogging Torque and Friction Torque. The Cogging Torque is generated by attraction/interaction of the magnetic poles to the teeth (steel structure) within an un-energized motor. It is one of the most important parameters of permanent magnet motors, which causes torque ripple, vibration and noise.
 
To measure this parameters, Magtrol introduced its 2^nd generation of CTS COGGING TEST SYSTEM with the following system features:
-       Measure of Detent Torque, Cogging Torque and Friction Torque
-       Torque Detection < 1 mN·m
-       Rated torque 50 / 100 / 200 mNm (other range available on demand).
-       Accuracy 0.1% / 0.2% of rated torque ▪ Precise Angle Detection 5000 pulses/rev.
-       Operating speed 1 to 10rpm ▪ Operating Direction CW / CCW ▪ USB Interface ▪ Executable Specific Cogging Test Software
-       Peak Detection
-       X-Y, Polar and FFT Graphs
-       Multigraphs function with up to 5 curves comparison
-       Data Acquisition and Storage in TXT (Export in CSV files possible)
 
The test System includes a precision geared motor, a TS torque sensor integrating a 5000 pulses encoder and security clutches to avoid system overload by mishandling when not in use. The geared motor drives the MUT (Motor Under Test) at low speed of 1 to 10rpm, while acquiring its cogging torque related to angle position. The torque measurement covers a range up to 200mN∙m (depending on the selected torque sensor) with an accuracy of ±0.1 mN∙m (for TS100 with 50mN∙m of nominal range). An executable software control the system realizing the measurement and data acquisition. It provides accurate peak-to-peak measurement of cogging torque and displays X-Y or polar graphs as well as FFT analysis. It allows the storage of the measured data enabling to compare performance graphs by overlaying up to 5 graphs. A cursor can be used to read accurate values from measurement points. Measured parameters can be saved under TXT. For better accuracy and function control, the software includes a 0 offset adjustment routine which check transducer signal over a complete turn (Test sample MUT not connected to the system).
 
As stand-alone system, the CTS only requires a 100-220VAC power. USB interface allows direct connection to the PC on which the software is installed. It is mounted on a PT-25 grooved base on which the motor fixture can be fitted. Vertical mounting bracket are available as an option, allowing to mount the system in vertical position, which is particularly recommended for very low measuring values. The system can easily be scaled up or down (50 / 100 ( 200 mNm), simply by replacing the TS torque sensor which is mounted in front of the unit. The software will recognize the torque sensor being in use and will automatically adapt its measuring range.