Máy đo điện áp tĩnh điện Trek 347

• Measurement Range:
• Measurement Accuracy:
• Speed of Response:

• 0 to ±3 kV DC or peak AC
  Better than 0.05% of full scale (monitor)
  Less than 3 ms for a 1 kV step (10% to 90%)

This non-contacting electrostatic voltmeter provides precision and value for surface voltage measurements in the range of ±3 kV DC or peak AC. Model 347 utilizes a field-nulling technique for non-contacting voltage measurement that achieves DC stability and high accuracy, with no need for fixed probe-to-surface spacing. This permits the accurate measuring of stationary or moving surfaces. Patented probe design enhances noise and drift performance in the presence of contaminating particulate or under conditions of high humidity and/or wide temperature ranges.

Applications

• Surface voltage measurements of photoconductors or dielectric surfaces
• Charge monitoring in semiconductor production
• Measuring of electrostatic potentials on film, polymers, and paper