Motor Datasheets - Associated In-House Tests
Overview
The data in our datasheets comes from testing manufactured motors. Here we cover a simple overview of our in-house test procedures. We've shown example graphs and charts, which are actual results we have used to evaluate devices. The chart below summarises which tests are used for each device type.
DC Motor Commutator Profile
The Commutator Profile generates a polar chart showing the variation in terminal resistance and inductance as the motor is rotated 360 degrees. From these charts we can extrapolate information about the motor and check it against specifications, such as Maximum Inductance and Number of Poles; it can also be used to spot any potential defects with the manufacturing parameters of the motor commutator.
Data Used For: Conformity Limits Specifications, Construction Specifications, Typical Performance Characteristics, Typical Electrical Characteristics
Data Used For: Physical Specifications, Leads & Connectors Specifications, Product Dimensional Specification
Data Used For: Conformity Limits Specifications, Typical Performance Characteristics, Typical Electrical Characteristics, Typical Mechanical Characteristics
Gearmotor Torque Profile
Our Gear Motor Profile test returns similar results as the Motor Torque Profile test, but uses a larger dynamometer for our DC gearmotors. The results of speed, current, power out, and efficiency are collated into one graph for quick evaluation, which we print on our datasheets.
Data Used For: Conformity Limits Specifications, Typical Performance Characteristics, Typical Electrical Characteristics, Typical Mechanical Characteristics
Vibration / Resonator Sled
The Vibration Sled and Resonator Sled tests are similar procedures, with Linear Resonance Actuators tested on the resonator sled and other vibration motors, such as Eccentric Rotating Mass motors, tested on the vibration sled. The tests use accelerometers and power measurements to generate several performance graphs.
Data Used For: Conformity Limits Specifications, Typical Performance Characteristics, Typical Electrical Characteristics, Typical Haptic Characteristics, Resonator Frequency Response, Resonator Impedance Plot
Conclusion
This guide has explained the information included on our datasheets, referring to examples, explaining terms, and demonstrating how the test results are generated.
We perform additional in-house tests to provide customers with information beyond industry standard specifications. As a result be believe that designing applications with our motors is simpler and less risky.
Did you know that we can also use our testing facilities to generate datasheets for existing parts, which we can then use to design and manufacture a replacement / compatible motor. Please contact us, if you think this would benefit your company.
