High-resolution EMI source visualization for PCBs, cables, and compact assemblies (A4–A3 size).

The Morita-Tech WM7000 Series is a high-performance desktop EMC noise scanning system designed to identify where electromagnetic noise is generated across circuit boards, cables, and electronic assemblies. By combining automated probe scanning, laser distance measurement, and visual noise mapping, WM7000 systems enable engineers to quickly pinpoint EMI sources and validate countermeasures.

Available models support scanning areas up to A4 size (WM7400) or A3 size (WM7300), with frequency coverage up to 8 GHz depending on configuration.

Key Description

The WM7000 Series provides spatial visualization of electromagnetic emissions by scanning a near-field probe over the device under test while maintaining a constant distance using a laser rangefinder. Measured noise is displayed as a color-mapped image overlaid on a photograph of the target object, making noise sources easy to identify.

1. Scan (automated probe movement with distance control)
2. Analyze (frequency-selective EMI measurement)
3. Visualize (noise map overlaid on DUT image)

Models

WM7400 (up to A4 size)

A compact, high-speed EMC noise scanner for printed circuit boards and small assemblies. Supports multiple scanning modes for boards, components, and cables.

WM7300 (up to A3 size)

Designed for larger targets such as long cables or large PCBs that exceed the WM7400 scanning area.

Core Features

📡 Wide Frequency Coverage
150 kHz – 3 GHz (standard), expandable to 8 GHz for higher-frequency analysis.

🧲 Near-Field Magnetic Probe Measurement
Uses a dedicated near-field probe for precise detection of radiated noise.

📏 Laser Rangefinder Distance Control
Maintains constant probe-to-surface distance for accurate measurement on uneven surfaces.

🖥️ Dual Screen & Dual Cursor Display
Displays DUT image and measurement results simultaneously with linked cursors for intuitive noise source identification.

🔁 Multiple Scanning Modes
Supports printed circuit boards, small components, cables, and irregularly shaped objects.

🔌 Spectrum Analyzer Compatible
Works with spectrum analyzers from multiple manufacturers for system flexibility.

🛡 Optional Shield Box
Dedicated shield boxes are available to improve measurement accuracy in noisy environments.

🔐 Side-Channel Attack Evaluation (Optional)
Supports oscilloscope-based analysis using high-output probes and amplifiers for security and EMC research.

Typical Use Cases

✔ EMI debugging of PCBs and electronic modules
✔ Cable and harness noise source identification
✔ Pre-compliance EMC testing
✔ Countermeasure validation (before/after comparison)
✔ Side-channel and susceptibility evaluation (optional)

Advantages of the WM7000 Series

🔍 Real EMC Evaluation (EMI + EMS)

Supports both emission visualization and spot immunity testing (with optional irradiation probe), enabling deeper understanding of where noise originates and where susceptibility occurs.

🧠 Intuitive Noise Mapping

Noise distribution is displayed directly on a photo of the DUT, allowing engineers to locate sources at a glance.

🏭 Fully In-House Developed System

Robots, probes, software, and optical components are all developed by Morita-Tech, ensuring tight integration and high reliability.

Notes

• Spectrum analyzer and probes may be customer-supplied depending on configuration.

• System size and scanning area can be customized.

• Specifications and appearance are subject to change without notice.