描述
要探测的物体大小直接影响超声传感器的检测范围。传感器必须探测到一定声级的声音才可以进行输出。大部件能将大部分声音反射给超声传感器，这样传感器即可在其最远传感距离检测到此部件。小部件仅能反射较少的一部分声音，从而导致传感范围大大缩小。要探测的物体使用超声探测的理想物体应体积大、平整且密度高，并与变换器正面垂直。最难探测的物体是体积小且由吸音材料（如泡沫橡胶）制成的物体，或者与变换器呈一定角度的物体。
JDS Uniphase Laser Power Supply 2114B-30SLT NEW
JDS Uniphase OC-192 Transceiver
JDS Uniphase Standard Helium-Neon Laser 1507P
JDS UNIPHASE SPEED TEST MEASUREMENT MO. OPM8EPP
JDS Uniphase Laser 2214-30SLQTC + Power Supply
JDS Uniphase Laser Power Supply 2114-020GLCKDK *Test*
JDS Uniphase 58TT-1D1-889
JDS Uniphase 58TT-100-999
JDS Uniphase 58RT-1D1
JDS Uniphase MTA 150 GPIB Control Cassette
JDS Uniphase MTA100 Mainframe (Reduced)
JDS Uniphase VA5503-FPL Fiberoptic Attenuator
JDS Uniphase MTA300 JDS Fitel MTA300 Optical Attenuator
JDS Uniphase VA5503-SPL Fiberoptic Attenuator
Lot of 10, Helium Neon Laser JDS Uniphase, Hughes, etc
JDS Uniphase 2112A-10MLA Laser Power Supply & key
JDS Uniphase P/N1008P Laser tube
