Multi-Channel DC Resistance Tester Boosts Batch Quality Inspection Across Industries
Our multi-channel DC resistance tester delivers synchronous high-precision low-resistance measurement for multiple workpieces at one time, drastically cutting cycle time for mass quality control of winding, conductive and power electronic components.
Full Application Scenarios & Detailed Introduction
1. Magnetic Winding Component Production
It tests DC winding resistance of power inductors, common-mode chokes, switching transformers and small motor coils on automated production lines. The multi-channel parallel test function simultaneously screens defective parts with broken copper wires, missing turns, poor soldering and unbalanced winding resistance, meeting full-inspection demands for inductor and transformer manufacturers.
2. Automotive & New Energy Electronics
Test EV on-board charger inductors, EMC filter coils and BLDC motor stators;
Measure wiring harness terminals, relay contacts and battery busbar connectors to detect oxidation and loose joints;
Comply with strict automotive-grade tolerance standards for batch component verification.
3. Power Equipment & Electrical Manufacturing
Factory inspection of distribution transformers, three-phase motor windings and generator coils, checking resistance balance of multi-group windings;
Routine maintenance for power plants and substations, testing circuit breakers, busbars and grounding conductive parts to eliminate overheating risks caused by abnormal contact resistance.
4. Lithium Battery & Energy Storage Industry
Complete synchronous multi-point internal resistance testing for cylindrical, pouch and prismatic battery cells, as well as battery pack connecting tabs. It supports high-speed sorting during cell formation and grading, tracing resistance consistency of batch batteries.
5. Consumer Electronics & PCB Assembly
Detect FPC wireless charging coils, PCB etched inductors, speaker voice coils and array chip resistors. Multiple test channels handle panel multi-piece testing, solving low efficiency of single-point traditional instruments for wearable devices, chargers and laptop power modules.
6. Laboratory R&D & Third-Party Inspection Labs
For material resistance research of conductive rubber, alloy wire and coating materials; provide repeatable multi-point test data for new coil prototype validation. It also supports incoming sampling inspection for electronic component purchasers to block non-conforming raw materials.
7. Rail Transit & Industrial Control
Test traction motor windings, signal line connectors and solenoid valve coils of metro and industrial automation equipment, ensuring stable resistance performance under long-term continuous operation.
Core Product Advantages
4/8/16-channel synchronous parallel testing, reducing test time by over 70% vs single-channel equipment;
Four-terminal low-resistance measurement with high accuracy, stable for micro-ohm level winding detection;
Automatic data recording, batch report export for production quality traceability;
Compatible with automatic sorting machines via Handler, RS232 and USB interfaces for unmanned production lines.
Widely adopted by electronic component factories, new energy manufacturers and power inspection institutions, the multi-channel DC resistance tester serves as a core efficiency upgrade solution for mass resistance testing across all manufacturing sectors.
