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Bosch Power Tools 1 609 92A 0KJ | (6.5.14)
找平精度
影响精度的因素
操作环境的温度是最大的影响因素。尤其当温度从地
面朝著天花板逐渐改变时,极可能改变激光束的投射
方向。
由于接近地面的温度积层最大,所有当测量距离超过
20 米时最好把仪器安装在三脚架上。另外,尽可能把
测量仪摆在测量场所的中央。
除了外来的影响因素之外,仪器本身的状况 (例如仪
器摔落了或遭受强烈撞击)也会影响找平精度。所以
操作仪器之前,一定要先检查仪器的精度。
先检查水平激光束的高度精度及找平精度,然后再检
查垂直激光束的找平精度。
如果在检查时发现测量仪器的偏差超过最大极限。必
须把仪器交给博世顾客服务处修理。
检查水平激光束的高度精度
针对这项检查,您必须找一段无障碍物的 5 米长线
段,而且该测量线段必须介于两面墙 A B 之间。
把测量仪安装在三脚架上,并把三角架摆在靠近墙
A 的位置,或者把仪器放置在靠近墙的坚实,平坦
的地面上。开动测量仪,并选择有自动找平功能的
交叉测量。
把激光束对准比较靠近的墙 A,并让测量仪找平。
找出激光束在墙上的交叉点,并在该点的中心位置
打上记号 (点 I)。
把测量仪旋转 180 度,让仪器找平。找出激光束在
B 上的交叉点,并在该点的中心位置打上记号
(点 II)。
把测量仪移近墙 B (无须旋转测量仪),开动测量
仪,并让仪器找平。
调整测量仪的高度 (借助三脚架,必要时得使用垫
块),让激光束的交叉点,准确地投射在墙 B
II 上。
把测量仪旋转 180 度,但是不可改变测量仪的高度。
调整测量仪,让垂直方向的激光束穿过墙 A 的点
I。让测量仪找平,并且在墙 A 的激光束交叉点上
做记号 (点 III)。
墙A上I 和点III 的差距d便是测量仪的实际高度
偏差。
您可以使用以下的公式计算最大的许可偏差 d
max
:
d
max
= 两倍的墙壁间距 x 0.3 毫米 /
范例:如果墙壁的间距为 5 米,那麽最大的许可偏差
d
max
=2x5x 0.3 毫米 / = 3 毫米。所以记号之
间的距离,不可以超过 3 毫米。
检查水平方向的激光束的找平精度
针对这项检验,您需要一个无障碍物的 5x5 米空旷场
地。
把测量仪摆放在坚固、平坦,而且到墙 A和墙 B 等距
的位置上。让测量仪在水平方向找平。
A
B
5 m
A
B
180˚
A
B
d
180˚
A
B
OBJ_BUCH-817-005.book Page 191 Tuesday, May 6, 2014 10:15 AM
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