The most common application of PCB/FPC wired near-field communication (NFC) applications is the induction coil printed on the inner layer of mobile payment cards. The printed coils may make contact with each other and result in micro-short circuits due to poor silver printing processes which, in turn, lead to poor induction in terminal products or even induction failure and data communication interruption.
PCB coil micro-short circuit meter 933 is a non-destructive tester. By applying voltage at both ends of the coil, this resonates a cluster of energy by induction and capacitance charging and discharging. We then use the waveform from release to attenuation to analyze the PCB coils for its insulation, induction amount, and parallel connection-based capacitance change to control micro-short circuiting in coils caused by the production process.
- Detect micro-short circuit in between loops within coils by high voltage test
- Process analysis or the best test station for quality control
- Simultaneous testing of multiple sets of coil plate lifting efficiency
- Non-destructive analysis - transient voltage test-intermittance voltage test
- L/C mutual discharge resonance releases waveforms for comparison
- Integrated LCR measurement function, comprehensive quality control of coil plate (inductance / inductance Q / DC resistance)
Measurement Data
DCR | |
Range | 0.1mΩ ~ 100kΩ( 4-wire measurement ) |
Accuracy | Low Resistance:0.1mΩ ~1Ω ±(0.2% ± 1mΩ) High Resistance:1Ω ~ 100kΩ ±0.1% |
Inductance | |
Inductance test | 0.01nH ~ 100kH |
Coil Micro-short | |
Voltage | 0.2kV ~ 3kV ±2% |
Measurement Item | Total Area、Area size comparison、Flutter、Waveform comparison、Corona |
Accuracy | 2% |
Specification
Channels | 17 channels |
Indicator | Pass/Fail Screen Diaplay/Sound |
Fixture | Customized fixture |
Power Supply | 90 ~ 132Vac or 198 ~ 264Vac (switchable) |
Interface | RS-232 |
Flash Memory | Storage of 100 rewritable data sets |
Operation | Manual、、RS-232 |
Environment |
Temperature :10℃~40℃ |
6420+9333 Dimension (W*H*D) / Weight | 435x140x520 mm / 15 Kg |
9333/6420 Display | 320*240 |
Test Item
Item | Range |
Coil Micro-short | Pulse voltage 200V ~ 3000V |
Coil Impedance | Inductance、Quality factor、DCR |
Standard Accessories
- Power cord
- User manual CD
- High voltage cable
- RCA connector
- RS-232 cable
- Control cable (25F-25F)
Optional Accessories
- Customized fixture
- Computer link software
