The utility model discloses an electromagnetic soil layer settlement measuring device, which includes a bracket, a microprocessor, a signal cable and a settling probe. The signal cable is fixed with a resistance piece, and a sliding joint is fixed on the bracket. The signal cable is penetrated from the sliding joint and connected with the settling probe. The sliding joint and the resistance piece are slid connected. The microprocessors are connected with the tail end of the signal cable and the sliding joint to form a closed circuit respectively, and an electromagnetic switch is set in the closed loop. When the signal cable is slid in the sliding joint, the sliding joint is always in contact with the resistance piece. The microprocessor can accept the feedback signal of the magnetic ring to be detected by the settlement probe. The electromagnetic switch is disconnected, and the microprocessor automatically calculates, saves and displays the descent depth corresponding to the settlement probe according to the resistance value in the closed loop. Based on the principle of sliding rheostat, the microprocessor automatically saves the subsidence data of the settlement probe and avoids the subjective error of manual reading.
【技术实现步骤摘要】
一种电磁式土层沉降测量装置
本技术属于仪器仪表
,尤其涉及一种电磁式土层沉降测量装置。
技术介绍
在工程安全检测领域中,对建筑物的沉降量的观测测量,传统的办法是采用电磁式沉降仪由人工进行操作。沉降测量仪是基于电磁感应的原理,在建筑物的不同高程位置放置沉降监测点,即磁环套装在沉降管上,当沉降探头探测到沉降点位置时,蜂鸣器发出声音,远离沉降点时,声音消失。蜂鸣器发声时,操作人员首先通过声音采用主观判定的方式确定位置,之后通过眼睛目测的办法,读出测尺上沉降点对应的位置并记录数据。其操作过程为:首先将探头放置到管口,沉降管的深度从数十米至数百米不等。然后由操作人员手拉测尺拖动探头缓慢下落,在探头下落的过程中遇到磁环时,蜂鸣器会发出声音,此时操作人员用眼睛观测并记录测尺上的刻度。一个工程通常有多个沉降观测孔,如此重复若干次,直至完成整个测量过程。传统沉降测量仪测试方法,人为因素带来的主观性误差较大,主要集中于以下几个问题:1:读数时,采用人工读数,存在读数不精确;2:探头探测到磁环位置时,由于人工手拉测尺上下移动,以及凭借听声定位置,无法精准确定磁环位置,很容易出现1 ...
【技术保护点】
1.一种电磁式土层沉降测量装置,其特征在于:包括支架、微处理器、信号电缆、沉降探头,所述信号电缆上固定设有电阻片,所述支架上固定设有滑动接头,所述信号电缆从所述滑动接头内穿出并与沉降探头连接,所述滑动接头与所述电阻片滑动接触,所述微处理器分别通过导线与信号电缆的尾端和滑动接头电连接形成闭合回路,在所述闭合回路上设有电磁开关,当信号电缆在所述滑动接头内滑动时,所述滑动接头始终与所述电阻片紧密接触。
【技术特征摘要】
1.一种电磁式土层沉降测量装置,其特征在于:包括支架、微处理器、信号电缆、沉降探头,所述信号电缆上固定设有电阻片,所述支架上固定设有滑动接头,所述信号电缆从所述滑动接头内穿出并与沉降探头连接,所述滑动接头与所述电阻片滑动接触,所述微处理器分别通过导线与信号电缆的尾端和滑动接头电连接形成闭合回路,在所述闭合回路上设有电磁开关,当信号电缆在所述滑动接头内滑动时,所述滑动接头始终与所述电阻片紧密接触。2.根据权利要求1所述的电磁式土层沉降测量装...
【专利技术属性】
技术研发人员:周中,邢凯,张健,刘五一,高文渊,刘撞撞,张称呈,
申请(专利权)人:中南大学,中国水利水电第八工程局有限公司,
类型:新型
国别省市:湖南,43
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