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Application Case | Solving Height Deviation & Poor Flatness in Automotive Motor Manufacturing with Sensor Solutions
Release time:2026-04-16
Application Case | Solving Height Deviation & Poor Flatness in Automotive Motor Manufacturing with Sensor Solutions
In automotive manufacturing, motors are no longer exclusive to new energy vehicles. From starters and generators in fuel vehicles, to drive motors, power steering motors and oil pump motors in hybrid / battery electric models, the quality of every single motor directly determines the vehicle’s power performance, range, safety and NVH performance.
Motor manufacturing involves numerous processes including stamping, gluing, welding, assembly and testing. Even micron-level deviations can lead to increased resistance, abnormal noise and other quality failures.
Today, we break down sensor solutions for key stations in automotive motor production, and explore how HEYI sensors safeguard the quality of each motor from components to assembly.
1. Flatness Inspection of Stamped Motor Cores
Problem
Poor flatness causes assembly failure, unwanted resistance and reduced efficiency.
Solution
HEYI HK‑S Series High‑precision Digital Contact Displacement Sensors
- Adopts absolute measurement with high‑precision grating scales
- Multi‑digit digital display of measured values
- Precision up to 1 μm, no cumulative error
- Optional RS485 or RS232 communication output
2. Adhesive Presence Verification
Problem
Detect glue breakage and adhesive absence to prevent defective products.
Solution
HEYI LC‑S Series CMOS Laser Displacement Sensors
- Compact size, small light spot and high precision
- Supports single switch output, dual switch & analog output, and RS485 communication
- Versatile functions and detection modes for wide applications
- Unaffected by object color (black, white or others)
- Capable of detecting tiny steps even when target and background have similar colors
3. Terminal Height Inspection
Problem
Height deviation results in poor contact; target is difficult to access.
Solution
HEYI LC‑S Series CMOS Laser Displacement Sensors
- Compact size, small light spot and high precision
- Versatile functions and detection modes for wide applications
- Non‑contact measurement enables long‑distance step detection
- Immune to surface scratches, unevenness and other surface conditions
If you need to know more about the above sensor parameters, or if you need to customize the selection plan based on the specific model of your device, please feel free to contact us at any time. We will provide you with professional technical support and a one-stop sensing solution.
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