PCI-6602 NI 计数器/计时器装置

这PCI 6602(零件号:777531-01, 184479-01) 计数器/计时器装置具有8个计数器/定时器、32个双向数字通道、80 MHz的最大源频率和5V TTL逻辑电平和范围。该器件可用于产生多种类型的测量解决方案，例如利用正交编码器监控位置、计数或累计事件，或者测量大量与时间相关的量。这NI PCI-6602计数器/定时器利用NI-TIO，安妮ASIC芯片，针对测量应用的计时和计数要求，超越现成设备的特性。该设备配有一个68针SCSI-II型输入/输出插头。零件号码184479-01是唯一的主板套件PCI-6602.

的几个特性国家仪器公司NI PCI-6602包括:去抖动/毛刺消除、缓冲操作和脉冲产生。此设备没有GPS同步功能。这PCI 6602国家仪器公司可以校准。该器件的校准过程是时基校准，可保证时间和频率测量的准确性。

该器件具有pad同步功能，当几个计数器正在估计或处理类似的外部信号时，该功能非常有用。例如，假设计数器0和1被设计用于激活脉冲产生，并且每个计数器使用类似的外部触发器(该外部标志与I/O连接器上的PFI 38相关联，并且这两个计数器选择PFI 38作为它们的门)。在触发信号通过I/O焊盘扩散之后，信号到达ASIC内部每个计数器的门的理想机会可能相差几纳秒。

如果用户需要使计数器能够在类似情况下看到标志的调整，则应利用pad同步。在缓冲同步中，标志由一个时钟周期抵消。

这PCI-6602使用NIDAQmx驱动软件运行，该软件与软件包或应用程序开发环境(ade)兼容，如LabVIEW或LabWindows/CVI。NI设备的尺寸为6.9 x 3.9英寸。在物理维度上。它推荐的操作和储存温度范围分别为0°C至55°C和–20°C至70°C。

PCI-6602

The PCI‑6602 (Part Number: 777531-01, 184479-01) Counter/Timer Device has 8 counters/timers, 32 bidirectional digital channels, a maximum source frequency of 80 MHz, and 5V, TTL Logic Levels and Range. This device can be utilized to generate many types of measurement solutions, such as monitoring position with quadrature encoders, counting events or totalizing, or measuring an amount of time-related quantities. The NI PCI-6602 Counter/Timer utilizes the NI-TIO, an NI ASIC chip created for the timing and counting requirements of measurement applications above the features of off-the-shelf devices. The device is equipped with a 68-pin male SCSI-II type I/O connector. Part number 184479-01 is the board only kit of the PCI-6602.

Several features of the National Instruments NI PCI-6602 include: debouncing/glitch removal, buffered operations, and pulse generation. This device does not have GPS synchronization. The PCI 6602 National Instruments can be calibrated. The calibration process for this device is timebase calibration, which guarantees the time and frequency measurements are precise.

This device has pad synchronization that is helpful when a few counters are estimating or working off a similar outside signal. For instance, assume counters 0 and 1 are designed for activated pulse generation and each counter uses a similar outer trigger (this outside flag is associated with PFI 38 on the I/O connector and the two counters have PFI 38 chosen as their GATE). After the trigger signal proliferates through the I/O pad, the ideal opportunity for the signal to achieve the GATE of each counter inside the ASIC may contrast by a couple of nanoseconds.

If the user needs to enable the counters to see the adjustments in the flag at a similar occurrence, they should utilize pad synchronization. Amid cushion synchronization, the flag is counterbalanced by one clock cycle.

The PCI-6602 is run using the NIDAQmx driver software which is compatible with software packages or application development environments (ADEs) such as LabVIEW or LabWindows/CVI. The NI device measures 6.9 x 3.9 in. in physical dimensions. It has recommended operating and storage temperature ranges of 0 °C to 55 °C and –20 °C to 70 °C respectively.