NI PCI-6251 Data Acquisition Card

NI PCI-6251 Data Acquisition Card

Product Details Introduction

The NI PCI-6251 data acquisition card is a high-speed, multifunctional data acquisition (DAQ) board produced by National Instruments (NI) in the United States. The following are the detailed features and parameters of the data acquisition card:

Basic information:

Model: PCI-6251

Brand: National Instruments

Type: High speed multifunctional DAQ board

Interface and compatibility:

PCI card slot suitable for PC machines, directly inserted for easy and convenient operation.

Channel and Resolution:

16 analog input channels, supporting single ended or differential input.

Two analog output channels.

The resolution reaches 16 bits, providing excellent sampling accuracy.

Sampling rate:

The single channel sampling rate can reach 1.25MS/s (1.25 million samples per second).

The multi-channel sampling rate can reach 1MS/s (1 million samples per second).

Update rate:

The update rate is 2.8MS/s, ensuring efficient data transmission and processing.

Range and voltage:

The maximum range is ± 10V, covering a wide measurement range.

The minimum recognizable voltage is approximately 0.1mV (calculated based on 16 bit resolution).

Data transmission:

Equipped with two direct memory access (DMA) channels, achieving data transmission without CPU and improving data collection efficiency.

Signal conditioning:

Internally, there is a programmable low-pass filter that can block high-frequency noise during the A/D conversion process, ensuring data accuracy.

Wiring mode:

Provide three wiring modes: reference mode, reference single ended mode, and non reference single ended mode to meet different experimental and application needs.

Software support:

Supporting NI-DAQmx basics, measurement hardware DDK, and NI-DAQmx driver software, making it convenient for users to control and collect data from the data acquisition card.

Other features:

Supports analog and digital triggering, providing approximately 70 signal conditioning options.

Equipped with an integrated NI-PGIA 2 amplifier, ensuring 16 bit accuracy at high scanning rates.

Provide 24 digital I/O channels (8 channels can reach up to 10 MHz at high speed).

Equipped with 2 32-bit 80 MHz counters/timers.

Summary: The NI PCI-6251 data acquisition card has become an ideal choice for data collection in laboratories and industrial production due to its high-speed and high-precision sampling ability, flexible wiring methods, and rich software support. PCI-6251 can perform excellently in signal analysis, noise measurement, and other applications that require high-precision data acquisition.

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