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Benchtop and VXI Instruments

NAI offers a wide range of Benchtop and VXI card-based motion simulation and measurement instruments specifically designed for defense, commercial aerospace and industrial applications. Noted for their best-of-breed performance, these innovative and highly reliable instruments are used in a broad range of programs by customers world-wide. Typical applications include design; simulation; production test; and calibration of airborne, ground-based, and shipboard systems such as navigation control, signal retransmission, fire control, LVDT/RVDT simulation, and test.

Innovative circuit designs
Stringent component selection
Ultimate in accuracy, speed, repeatability, programmability, and reliability

NAI’s instruments are field-proven over many years of use and have become the industry standard. All of NAI’s production, test, and inspection personnel are certified to IPC-A-610 standards via the American Society for Quality (ASQ), and our equipment calibration procedures meet the requirements of ANSI/NCSL-Z540, utilizing standards traceable to NIST.

Phase Angle Voltmeters
NAI’s units of today are actually multifunction Digital Analyzing Voltmeters that combine a complete Voltmeter, a Phase Angle Voltmeter, and a Waveform Signal Analyzer in a single microprocessor-based instrument. With these versatile and flexible instruments, a wide range of tests can be performed, either manually using the front panel controls or automatically using the IEEE-488 bus. Designed for the Synchro/Resolver and LVDT/RVDT marketplace, NAI’s Voltmeters are used in a variety of applications. They are capable of measuring: Phase Angle, Total Voltage, Fundamental Voltage, In-Phase Voltage, Quadrature, Frequency Analysis Voltage, Signal to Reference Ratio and Harmonic Distortion.
Phase Angle Voltmeters Model 2250A
2250A
  • Reference Voltage Range 50 MV to 500 Vrms
  • Signal Voltage Range 50 MV to 500 Vrms
  • Phase Accuracy Up to ±0.01°
  • Phase Resolution 0.0001°
  • Internal Reference Optional 6 VA
  • Front Panel Type High-Res Touch Screen
  • Form Factor Bench & Rackmount
  • Frequency Range 10 Hz to 1 MHz
  • Interfaces Ethernet, USB & IEEE-488

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Synchro/Resolver Simulators
NAI offers a wide variety of Synchro/Resolver Standards and Simulators that can be used as standards for calibrating and testing Automatic Test Equipment (ATE) or for measuring the static or dynamic characteristics of Angle Position Indicators (APIs) and Synchro-to-Digital Converters. Features include up to 2 arc-second accuracy, programmable parameters, and 3.0 VA output. Ideally suited for defense, commercial aerospace, and industrial applications, these measurement instruments deliver industry-leading performance in a variety of accuracy and resolution grades, with various packaging options.
Synchro/Resolver Simulators Model 5300
5300
  • Signal Voltage Range 1 to 90 VL-L Auto Ranging
  • Reference Voltage Range 2 to 115 Vrms
  • Frequency Range 47 Hz to 20 kHz
  • Interfaces IEEE-488
  • Resolution 0.0001°
  • Internal Reference 4 VA
  • Front Panel Type LED
  • Form Factor Bench & Rackmount
  • Accuracy 0.00015°
  • Other Synchro/Resolver Standard Accuracy & Resolution

Synchro/Resolver Simulators Model 5330A
5330A
  • Frequency Range 47 Hz to 10 kHz
  • Other Two Speed Operation, Dynamic Angle Modes
  • Signal Voltage Range 1 to 90 VL-L Auto Ranging
  • Accuracy Up to ±0.005°
  • Resolution 0.001°
  • Internal Reference Optional 6 VA
  • Front Panel Type High-Res Touch Screen
  • Form Factor Bench & Rackmount
  • Reference Voltage Range 2 to 115 Vrms
  • Interfaces Ethernet, USB, IEEE-488 & Parallel Ports

VXI Instruments
NAI offers a wide range of COTS and custom VXI-based Instruments. These boards are specifically designed for defense, commercial aerospace, and industrial applications. Our DSP-based designs offer very high function density, high resolution and accuracy, and low power consumption. Standard features include extensive diagnostics, Background Built-In-Test (BIT), auto-ranging of signal inputs, self-calibration, galvanic isolation, and field programmable parameters. A VISA PNP Software Support Kit (SSK) is provided to facilitate application development.
VXI Instruments Model 65CS4
65CS4
  • Function Synchro/Resolver Measurement & Stimulus
  • Voltage Range 1.0 to 90 VL-L
  • Frequency Range 47 Hz to 4,000 Hz, 47 Hz to 10 kHz or 20 kHz
  • Excitation/Reference Supply 2 to 115 Vrms
  • Number of Channels 4 Measurement Channels 4 Stimulus Channels
  • Other 5410C-89 Replacement

VXI Instruments Model 65DL2
65DL2
  • Functions LVDT/RVDT Outputs
  • Voltage Range 24 Vrms
  • Frequency Range 360-20 kHz
  • Excitation/Reference Supply 2 to 28 Vrms
  • Number of Channels 8 Channels or 12 Channels contact factory
  • Other 5410C-83 Replacement

Angle Position Indicators
NAI offers a wide variety of Angle Position Indicators (APIs) that perform high quality analog-to-digital conversions of Synchro or Resolver data. These measurement instruments deliver industry-leading performance in a variety of accuracy and resolution grades, with various packaging options available. Multiple communication control interfaces include:
Angle Position Indicators Model 8810A
8810A
  • Other Two Speed Operation, Auto Phase Correction, Velocity & DC Angle Output
  • Reference Voltage Range 2 to 115 Vrms
  • Signal Voltage Range 1 to 90 VL-L Auto Ranging
  • Accuracy Up to ±0.0015°
  • Resolution 0.0001°
  • Internal Refernce Optional 2.2 VA
  • Front Panel Type High-Res Touch Screen
  • Form Factor Bench & Rackmount
  • Frequency Range 47 Hz to 20 kHz
  • Interfaces Ethernet, USB, IEE-488 & Parallel Ports