NCIDQ IDFX Practice Exam

What measurement technology is characterized by the use of a laser-based instrument with onboard computing?

1. Reflectorless electronic distance measurement

2. Convergent photogrammetry

3. Electronic distance measurement

4. Stereophotogrammetry

The correct answer is: Electronic distance measurement

The correct response entails the use of laser-based instruments that incorporate onboard computing for data processing, which is a hallmark of electronic distance measurement technology. This technology utilizes lasers to accurately calculate distances by measuring the time it takes for a laser signal to travel from the instrument to a target and back. The onboard computing capability allows for instant processing and display of measurement results, making it efficient and highly accurate for various applications, such as surveying and construction. In contrast, reflectorless electronic distance measurement typically uses similar principles but focuses on measuring distances without the need for a prism or reflector. Convergent photogrammetry and stereophotogrammetry are both methods that involve capturing images to create spatial measurements but do not necessarily rely on a laser-based system with onboard computing to derive distance. Thus, electronic distance measurement stands out due to its specific combination of laser-based technology and integrated computing capabilities, which enhances the measurement process significantly.