NI9361 National Instruments

NI9361 National Instruments Serial Port Converter

Brand：National Instruments Model number：NI9361

Country of origin: United States Product weight：0.12kg

HS code：8517623990

Product Details：

Product Dimensions：

The NI-9361 is part of the C Series of high-performance modules. It acts as a bridge between the physical world of motion and flow and the digital processing power of the NI platform. It is specifically engineered to handle high-speed pulse trains and can perform complex calculations—such as measuring frequency, duty cycle, and pulse width—on the module itself to reduce the processing load on the system controller.

Product Specifications

Number of Channels: 8 counter channels
Input Voltage Range: 0 V to 5 V (TTL/CMOS) with a maximum input voltage tolerance of 30 V
Maximum Frequency: Supports pulse rates up to 1 MHz for high-speed tracking
Internal Counter Resolution: 32-bit, providing high precision for long-duration or high-frequency measurements
Isolation: 60 V DC continuous bank-to-earth isolation, protecting the system from voltage spikes and noise
Input Types: Supports single-ended and differential signals, as well as A/B quadrature encoders
Power Consumption: Typically $0.6 \text{ W}$ to $1.2 \text{ W}$ depending on the operating mode
Connectivity: Options include D-Sub or 10-terminal spring-terminal connections for secure wiring

Product Advantages

High Channel Density: Having 8 channels in a single C Series slot allows for the monitoring of multiple motors or flow lines simultaneously, maximizing chassis efficiency.
On-Board Intelligence: The module performs calculations like period-to-frequency conversion internally, providing real-time data to the software without lag.
Encoder Support: It natively supports quadrature encoders, making it easy to determine the position and direction of rotating shafts in mechanical systems.
Synchronization: Because it is designed for the NI chassis architecture, the counter measurements can be perfectly synchronized with other data, such as analog voltages or temperature readings.
Robust Protection: The built-in isolation prevents ground loops and ensures that noise from industrial motors does not damage the backplane of the controller.

Important Considerations

Signal Compatibility: Ensure that the input signals do not exceed the 30 V maximum limit to prevent permanent damage to the module circuitry.
Chassis Compatibility: Always verify that your specific CompactDAQ or CompactRIO chassis supports the NI-9361, as some older legacy backplanes may have limitations.
Software Requirements: Use the latest version of the NI-DAQmx or NI-RIO drivers to access all advanced features and ensure stable communication.
Wiring Noise: For high-frequency measurements above 100 kHz, it is highly recommended to use shielded twisted-pair cables to minimize electromagnetic interference (EMI).
Grounding: Proper grounding of the system is essential to maintain the integrity of the 60 V isolation barrier.

Product Applications

The NI-9361 is widely utilized in sectors requiring precise timing and counting:

Automotive Testing: Measuring engine RPM from crankshaft sensors or tracking vehicle speed from wheel encoders during dynamometer tests.
Industrial Flow Measurement: Connecting to turbine or positive displacement flow meters to calculate the volume of liquids or gases in process control pipelines.
Motion Control: Monitoring the exact position and velocity of conveyor belts or robotic arms using quadrature encoders.
Material Testing: Measuring the pulse output from specialized sensors during high-speed stress or impact tests.
Power Grid Monitoring: Calculating the frequency and phase of digital signals in energy distribution research.

We have the same series of models in stock. If you don't find the model you need, please contact us and we will provide you with an official quotation！

NIPCI-6224

NIPCI-8512

NIPCI-8517

NIPCIE-8381

NIPXI-2545

NIPXI-2596

NIPXI-2597

NIPXI-6115

NIPXI-6224

NIPXI-6289

NIPXI-6513

NIPXI-6515