门桥式起重机动态应变测试系统的研制-农业工程学报.PDF

V o l N o 　1997 年　　12 月 . 　 1997 T ransactions of the CSA E D ec 　门桥式起重机动态应变测试系统的研制 ① 　　　　　　贾兰英 　邝朴生　蒋文科　王凤礼 (河北农业大学) 提　要　该系统可对 8 路电阻应变桥的信号进行数据采集, 并将得到的数据传送给主机, 供鉴定 软件使用。该系统充分利用了单片机 8098 软硬件的功能, 使电路结构简单, 性能价格比明显提 高。利用 PC 机的打印机适配器实现并行通讯, 不仅大大提高了数据传输的速度, 还使便携式 PC 机的使用成为可能。故该系统具有小型化、智能化、省时化的突出特点。 关键词　　动态应变测试　单片机　并行通讯 D evelopm en t of Br idged Crane D ynam ic Stra in Test System 　 　 　 J ia La n y ing Kua ng Pu she ng J ia ng W e n ke W a ng Fe ng Ii ( , ) H ebei A g ricu lu ral U niversity B aod ing Abstract T h is system is the m ain part of b ridged crane diagnon sis system. It can co llect 8 channel signals from resistance strain b ridge , and tran sm it the co llected data to a m ain com pu ter fo r successional softw are iden tification. T h is system takes advan tage of single ch ip M C 8098 softw are and hardw are function s so as to m ake circu it structu re sim p le and theratio of p roperty to p rice raisesm uch m o re. T he realization of parallel comm un ication fo r u sing p rin ter adap ter po rt of PC in th is system no t on ly sign ifican tly increases the speed of data tran sm ission , bu t also po rtab le PC com pu ter is u sed po ssib ly. T h is system , , , , . therefo re has very ou tstanding characters of dow n sizing in telligence and tim e saving 　 Key words D ynam ic strain co l