2250/2251 - NAI 数字相位表

The Model 2251 is Similar to the Popular Model 2250. The 2251 is a Multifunction Voltmeter that Combines a Total Voltmeter, a Phase Angle Voltmeter, and a Waveform Signal Analyzer in a Single Microprocessor-Based Instrument. As a Total Voltmeter the 2251 Can be Used for the RMS Measurement of a Total AC Signal Including Harmonics. In Addition, the 2251 Can Make Various Voltage Gain and Attenuation Measurements Directly in Decibels. As a Phase Angle Voltmeter the 2251 is Capable of Making the Following Multi-Frequency, Phase-Sensitive Measurements on an AC Signal:

Phase Angle: Is the amount of phase shift in degrees between the signal and reference voltage
Fundamental: Is the RMS measurement of a fundamental signal voltage without noise and harmonics
In-Phase: Is the RMS measurement of the vector component of a signal voltage that is in phase with a reference voltage
Quadrature: Is the RMS measurement of the quadrature vector component of a signal voltage that is 90° out of phase with a reference voltage
Signal to Reference Ratio: Is used with total, fundamental, in phase and quadrature modes to display a signal to reference ratio


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As an Analyzer the 2251 Uses a Combination of Waveform Sampling and Signal Processing Techniques to Determine the Magnitudes and Phases of a Signal Waveform Under Investigation. These Adjustments Facilitate Signal Analysis. The 2251 Has a Dual-Channel Measurement System which Uses Identical, (though isolation) Signal And Reference Circuits. The Isolation Feature Enables Input Voltages to Float with Respect to Circuit Ground.

Features

• High Accuracy
• 30 Hz to 54 kHz Frequency Range
• 20 mV to 300 V RMS Voltage Range
• Autoranging
• IEEE-488 Interface
• Self Calibrating


Specifications

 

P/N 平台 功能 描述
2250 Instruments Measurement Multi-Function, High Accuracy, Digital Analyzing Phase Angle Voltmeter(PAV). Possible replacement for obsolete models 213, 213c and 321.
2251 Instruments Measurement Multi-Function, High Accuracy, Digital Analyzing Phase Angle Voltmeter(PAV)- Similar to Model 2250 with Fewer Features and Lower Accuracy. Possible replacement for obsolete models 213, 213c and 321

 

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  • 2250/2251          
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