Purpose: Used to detect, measure, and analyze electrostatic charges in materials, environments, or electronic components.
Common Types:
- Electrostatic Field Meter – Measures electric field strength (V/m or kV/m) from static charges on surfaces.
- Surface Resistivity Meter – Evaluates how easily charge flows across a material’s surface (measured in ohms per square).
- Volume Resistivity Meter – Measures resistance through the bulk of a material (ohm-cm).
- Charge Plate Monitor (CPM) – Tests ionizer performance by measuring decay time of a known charge.
- Faraday Cup with Electrometer – Quantifies total charge on small objects or powders.
Key Applications:
- ESD (Electrostatic Discharge) protection in electronics manufacturing
- Quality control of antistatic materials
- Cleanroom and semiconductor environments
- Printing, plastics, and packaging industries
Features to Consider:
- Measurement range (voltage, resistance, field strength)
- Accuracy and calibration traceability
- Non-contact vs. contact measurement
- Data logging and interface options (USB, Bluetooth)
Note: Regular calibration and proper grounding are essential for reliable measurements.