PXI-6602 PXI计数器/定时器模块

☆型号：PXI-6602 PXI计数器/定时器模块

【产品详情】

5 V，8通道PXI计数器/定时器模块—PXI‑6602可执行编码器定位测量、事件计数、周期测量、脉冲宽度测量、脉冲生成、脉冲序列生成以及频率测量。 它具有八个计数器/定时器，数字去抖动滤波器和TTL/CMOS兼容的数字I/O。PXI‑6602可以同时执行三路高速DMA传输。

NI 制造的 PXI-6602 （部件号： 777557-01， 185745-01） 计数器/定时器 模 块 能够 完成 多种 功能， 包括 ： 频率 测量， 编码器 位置 测量， 周期 测量， 事件 计数， 脉冲序列 和 脉冲 生成 以及 脉冲 宽度 测量。可以同时完成三个高速 DMA 传输，而无需用户计算机的 DMA 资源。该计数器/定时器模块配备TTL/CMOS兼容数字I/O、数字去抖动滤波器、6条触发线、32位分辨率、静态数据传输和8个上/下计数器/定时器。它的测量和源频率为80 MHz。 部件号 185745-01 适用于 PXI-6602 的 板 板 套件 版本。

PXI兼容产品（如PXI-6602）可与CompactPCI设备配合使用。但是，如果PXI-6602用于CompactPCI机箱，则只能访问基本的插入式设备功能。PXI 的显式函数将无法获得。

PXI-6602 计数器/定时器 模 块 提供 的 一 个 功能 是 预 缩放。此功能允许计数器计算比计数器最高时基更快的信号。NI PXI-6602 计数器/定时器模块上的计数器可以在每个计数器上提供 8 倍或 2 倍的预缩放。如果用户选择，也可以停用预缩放功能。每个预分频器都由一个微小的基本计数器组成，该计数器数到 8 或 2，然后翻转。此计数器是为此应用程序创建的，因为它可以计算比常规使用计数器更快的信号。当对正在进行的重复信号进行测量时，预缩放旨在与两个计数器周期和频率测量一起使用。

☆型号：PXI-6602 PXI计数器/定时器模块

【英文介绍】

5 V, 8 channel PXI counter/Timer module - The PXI‑6602 performs encoder positioning measurement, event counting, period measurement, pulse width measurement, pulse generation, pulse train generation, and frequency measurement. It features eight counters/timers, digital dejitter filters, and TTL/ CMOS-compatible digital I/O. The PXI‑6602 can perform three high-speed DMA transmissions simultaneously.

The PXI-6602 (Part number: 777557-01, 185745-01) counter/timer module manufactured by NI performs a variety of functions, including: Frequency measurement, encoder position measurement, period measurement, event counting, pulse train and pulse generation, and pulse width measurement. Three high-speed DMA transfers can be done simultaneously without requiring the DMA resources of the user's computer. The counter/timer module is equipped with TTL/ CMOS-compatible digital I/O, a digital dejitter filter, 6 trigger lines, 32-bit resolution, static data transfer, and 8 up/down counters/timers. It has a measurement and source frequency of 80 MHz. Part number 185745-01 is for the board kit version of the PXI-6602.

Pxi-compatible products, such as the PXI-6602, work with CompactPCI devices. However, if the PXI-6602 is used in a CompactPCI chassis, only basic plug-in device functions can be accessed. Explicit functions for PXI will not be available.

One feature provided by the PXI-6602 counter/timer module is pre-scaling. This feature allows the counter to calculate a signal faster than the highest time base of the counter. Counters on the NI PXI-6602 counter/timer module can provide 8x or 2x pre-scaling on each counter. The prescale function can also be disabled if the user chooses. Each pre-divider consists of a tiny basic counter that counts to 8 or 2 and then flips over. This counter was created for this application because it can calculate signals faster than the regular use of counters. Prescaling is designed to be used with both counter period and frequency measurements when measurements are made for an ongoing repeat signal.

☆型号：PXI-6602 PXI计数器/定时器模块

【其他型号推荐】