摘要
光学密度计是一种测量胶片感光性能的专用仪器,应用于胶片生产和使用领域.由于采用模拟电路设计,元器件易受电源波动及其他冲击的影响.为此设计一种基于增强型并行口(EPP)的数据采集卡,实现了对密度计测量数据的直接采集,克服了人工操作带来的误差,具有较高的实用价值和推广意义.
Densitometer is a special apparatus for measuring film photonasty and applied in film production and application area. Because the densitometer adopts analog integrated circuits, the elements in it are easily affected by electrical eurrent fluctuation and other impact factors. This system realizes data sampling from densitometer by a data -sampling board based on EPP, thus overcoming the errors brought by manual operation.
出处
《应用科技》
CAS
2007年第6期46-48,共3页
Applied Science and Technology
