Multichannel LCR meter MICROTEST 9332 (PCB/FPC application)

Multichannel LCR meter MICROTEST 9332 (PCB/FPC application) is designed to meet the requirements of circuit boards that utilize copper foil etching to create coil circuits.

I. Specification of Precision LCR meter MICROTEST 9332 (PCB/FPC application)

Multichannel LCR meter MICROTEST 9332 (PCB/FPC application) enables electrical characteristic testing of multiple coil circuits on multi-layered boards. MICROTEST 9332 provides 64 testing channels, allowing for simultaneous testing of 32 coil sets.

The measured parameters include inductance, impedance, AC resistance, DC resistance, Q value, and more. The frequency range for measurements is from 10Hz to 200kHz.

Multichannel LCR meter MICROTEST 9332 (PCB/FPC application) supports PC connectivity software for remote programming and storage of test data. Additionally, Multichannel LCR meter MICROTEST 9332 (PCB/FPC application) can be integrated into dedicated PCB testing equipment to achieve fully automatic or semi-automatic testing.

• 1% basic accuracy
• 64 test channels
• Test 32 sets of inductive impedance (Ls/Rs/DCR/Q)
• Can be used with pneumatic composite fixtures to perform multi-board (panel) tests
• Supports multi-board test modes and LCR value measurement mode.

Application of MICROTEST 9332:

• NFC antenna board
• Wireless charging coil board
• Layout the coil on PCB/FPC.

II. Main features of Multichannel LCR meter MICROTEST 9332 (PCB/FPC application)

About wireless charging:

• With inductive coupling technology, the charger transfers energy to a electric device, such as a mobile phone.
• The mobile phone will charge the battery by receiving energy, so there is no need to use wires between charger and device.

Capacitance become bigger:

→ Etching process not enough, distance between wires will become large.

Resistance become bigger:

→ Etching process not well, wires will become slender.

Quality of coil is also a key factor effect resonance frequency:

→Diameter of coil wire

→Diameter and number of turns of coil

→Material of magnetic component (increase induction intensity).

The closer of working frequency and resonance point, the better transmission efficiency:

Inductance deviation:

• Poor processes will result in the resistance value of the copper foil circuit to increase as well as the parasitic capacitance; these will all cause high levels of losses to the inductance.
• Inductance offset causes a direct impact to the resonance frequency that is the key for wireless charging; once the resonance frequency curve has been offset, it may result in the risk of NG for products delivered to the module factory to test their functionalities.

Using LCR Meter MICROTEST 9332 to check Inductor Impedance characteristics of FPC Coil:

• 1-to-32 LCR super-capacity electrical measurement artifact 9332.

Technical specifications of Multichannel LCR meter MICROTEST 9332 (PCB/FPC application)

System: