For those seeking more accurate measurement results! Resolver phase measurement device.
NST Corporation
High-precision adjustments are possible, allowing for accurate quality control by quantifying the resolver phase results of the prototype motor.
The resolver mounted on the vehicle-mounted motor experiences installation errors. This device measures these installation errors (phase differences). 【Features】 - Measurement resolution of 0.001° By directly inputting signals from the resolver without using an R/D converter, accurate measurements can be achieved. - Control of the drive motor and measurement processing can be performed on a single PC, enabling fully automated measurements. - It is possible to set the number of motor poles and the resolver axis doubling angle, allowing measurement of various types of workpieces.
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basic information
【Specifications】 Target Motor / Motor: 3-phase motor Rotation Speed: 100rpm to 3000rpm (evaluation rotation speed) Induced Voltage: Maximum 30V Target Resolver / Ref Wave: 10KHz to 20KHz Output Signal: Sine wave / Cosine wave Drive Motor / Motor: AC servo motor Rotation Speed: 100rpm to 3000rpm Driving Torque: Depends on the target workpiece Measurement Items / U-phase Induced Voltage: Maximum 30V Ref / Sine / Cosine Voltage Phase Difference between Motor U-phase and Resolver (Electrical Angle): ±90°
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Applications/Examples of results
Adjustment, inspection, and evaluation of the resolver for the drive motor.
Detailed information
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Application example) R/D converter evaluation This is a system that compares the direct signal from the resolver with the converted signal from the R/D converter module for the purpose of evaluating the accuracy of the R/D converter module.
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PC software displays the U phase waveform from the motor and the resolver sine/cosine waveforms like an oscilloscope. The waveforms can be zoomed in and out, allowing you to extract the desired range. The measurement result display section shows the phase with a resolution of 0.001°.
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Company information
NST is an engineering company that supports manufacturers through the design, development, and commercialization of labor-saving equipment, automation systems, measurement devices, and custom control systems. We help our customers address a wide range of manufacturing challenges, including productivity improvement, automation, quality enhancement, and labor shortages. By working closely with each customer, we develop tailored solutions that meet specific operational requirements and deliver practical value in the field. One of our key strengths is our ability to provide flexible customization for projects that are difficult to accommodate with standard products or large-scale manufacturers. With approximately 70% of our workforce consisting of engineers, we possess extensive expertise in mechanical design, electrical design, control engineering, and software development. NST offers comprehensive support throughout the entire project lifecycle, from planning and proposal development to design, prototyping, production, installation, and after-sales maintenance. This integrated approach enables us to ensure consistent quality, rapid response, and long-term reliability for our customers. As a trusted engineering partner, NST is committed to creating innovative solutions that contribute to smarter, safer, and more efficient manufacturing environments.
