作者: Michael Connor
DOI:
关键词: Laser diode 、 Laser light 、 Ceiling (cloud) 、 Light beam 、 Acoustics 、 Perpendicular 、 Drywall 、 Tape measure 、 Engineering 、 Plane parallel 、 Structural engineering
摘要: The drywall measuring tape is a measure extendably contained within housing, including laser light source, such as diode, located on each side of the housing. Each source projects focused beam perpendicular to extended measure, and in plane parallel housing base. Thus, when across wall with base flush against wall, one sources reference spot onto ceiling, while other floor. This allows measurement be taken horizontally point ceiling or Additionally, includes T-square bracket base, disposed so that can quickly aligned surface edge for edge.