Motor Performance Testing Bench Solution | GALOCE

TIME: 2026.06.22 NUMBER OF VIEWS 27

Solution Overview: In the rapidly evolving EV and industrial automation markets, motor performance testing has become the benchmark for quality assurance. A Motor Performance Testing Bench is an integrated system designed to measure critical mechanical parameters such as Torque, Speed, and Efficiency. By utilizing GALOCE high-precision dynamic torque sensors (GTS208, GTS209, GTS210), engineers can capture real-time performance data with 0.1% accuracy, ensuring that powertrains meet global energy efficiency standards (IE3, IE4) and automotive safety regulations.

Technical Challenges in Motor Performance Analysis

Designing a reliable motor test bench requires overcoming significant environmental and mechanical obstacles. High-speed rotation in electric vehicles often leads to thermal instability and mechanical vibration, while variable frequency drives (VFDs) generate immense electromagnetic interference (EMI). These factors can compromise the integrity of delicate torque signals, leading to inaccurate efficiency calculations. GALOCE addressed these challenges by developing a non-contact, strain-gauge-based measurement chain that eliminates friction and survives the harshest electrical environments.

Motor Performance Testing Bench System Diagram showing GTS210 integration

Figure 1: Typical System Layout of a Motor Performance Testing Bench

Core Sensor Technology: GTS Series Dynamic Torque Transducers

The heart of any motor performance bench is the torque transducer. GALOCE offers three specialized series to cover the full spectrum of industrial and automotive testing needs.

GTS208 Non-contact Dynamic Torque Sensor for high precision measurement

GTS208 Series: Low Range & High Precision

The GTS208 is our most popular choice for small-to-medium motor testing. Its compact form factor allows for integration into space-constrained test cells without sacrificing accuracy.

Capacity Range: 5Nm to 500Nm
Accuracy: 0.1% F.S.
Max Speed: 8,000 RPM (Standard)
Best For: Appliances, micro-motors, and laboratory R&D.

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GTS209 High Speed Dynamic Torque Sensor up to 15000 RPM

GTS209 Series: Ultra-Low-Range

Designed for the next generation of Electric Vehicles, the GTS209 features specialized bearings and balanced shafts to handle the extreme rotational speeds of modern EV drivetrains.

Capacity Range: 0.1Nm to 5Nm
Accuracy: 0.1% / 0.2% F.S.
Max Speed: Up to 16,000 RPM
Best For: EV powertrain testing, aerospace turbines, and high-speed pumps.

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GTS210 Industrial Dynamic Torque Sensor for heavy duty silo and motor testing

GTS210 Series: Mid-to-High Range

The GTS210 is the "workhorse" of industrial process control. With a rugged 17-4PH stainless steel shaft and high torque capacity, it excels in the harshest heavy-industry environments.

Capacity Range: 5Nm to 5,000Nm
Accuracy: 0.2% F.S.
Digital Output: RS485 (Modbus RTU) for long-distance stability
Best For: Metallurgy, marine engines, gearboxes, and large conveyor systems.

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Comparison of GTS Series Specifications

Specification	GTS208	GTS209	GTS210
Principle	Non-contact Strain Gauge (Wheatstone Bridge)
Signal Transmission	Analog (mV, 4-20mA)	High-Freq Pulse (5-15kHz)	Digital RS485 / Modbus
Max Torque	500 Nm	5 Nm	5,000 Nm
Connection	Shaft to shaft	Shaft to shaft	Shaft to shaft
Material	17-4PH High Strength Stainless Steel

Why GALOCE Leads the Motor Testing Market

Our solution goes beyond just selling a sensor. We provide a complete Measurement Ecosystem designed to maximize data accuracy and minimize system downtime.

Advanced EMI/RFI Protection

Motor test benches are notorious for electrical noise generated by Variable Frequency Drives (VFDs). GALOCE sensors feature internal gold-plated shielding and a specialized digital conversion module within the sensor body. By converting analog strain gauge signals to frequency or digital signals immediately at the source, we prevent noise induction over long cable runs, ensuring 100% data integrity.

Seamless Integration with PLC/DAQ

Whether your system relies on LabVIEW, MATLAB, or industrial PLCs (Siemens, Rockwell), GALOCE provides the necessary signal conditioning. Our GML-V800 indicators offer direct Modbus TCP/RTU connectivity, allowing for real-time visualization of torque-speed curves, which are essential for identifying the motor's "sweet spot" efficiency range.

Case Study: Optimizing EV Motor Efficiency for a Global OEM

Scenario: A leading automotive Tier-1 supplier needed to certify their new 200kW EV motor. They were using old slip-ring technology which caused significant signal noise at speeds above 6,000 RPM.

Our Solution: We implemented the GTS209-500Nm sensor. By switching to our non-contact system, the customer eliminated the maintenance downtime required for brush replacement. Furthermore, the 0.1% accuracy allowed them to refine their inverter software, leading to a 2% increase in reported driving range for the final vehicle.

Frequently Asked Questions

Q: How do I choose the correct capacity for my motor test bench?
A: Always choose a capacity that is 120% to 150% of the motor's peak rated torque. This provides a safety margin against unexpected torque spikes during acceleration testing.

Q: Does GALOCE provide the couplings as well?
A: Yes. For high-speed applications, we provide dynamically balanced flexible couplings that are critical for protecting the sensor's bearings from misalignment loads.

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