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一、引言自IEEE-Std-488“可程控测量仪器标准数字接口”于1975年正式公布以来,国外厂商生产的大部分智能化电子测量仪器均按照这一标准文本,设计整机接口电路。仪器既可单机使用,也可用于按IEEE-488标准组建的自动测试系统中。近一、二年来,国内带标准接口的数字化测量仪器刚刚问世,尚未达到批量生产的程度。但是目前国内使用具有该功能仪器的用户正在逐渐增多,对与仪器配套使用的带标准接口的数字式打印机的需求亦很迫切。本所
I. INTRODUCTION Since IEEE-Std-488 “Standard Digital Interface for Programmable Measuring Instruments” was officially announced in 1975, most of the intelligent electronic measuring instruments produced by foreign manufacturers follow this standard text to design the whole interface circuit. The instrument can be used stand-alone, can also be used in accordance with the IEEE-488 standard automatic test system set up. In the past one or two years, the domestic digital measuring instruments with standard interfaces have just come out and have not yet reached the level of mass production. However, at present, the number of users who use the apparatus in this country is gradually increasing, and the demand for digital printers with a standard interface for supporting the apparatus is also very urgent. The firm