Skip to main content

Detector Building

Division: C- High School

NC Essential Standards Alignment: EEn.1.1

Event Rules: See National Rules Manual

Event Score Sheet: 2023 Detector Building Score Sheet

National Event Page: Here


Teams will build a durable Mass/Force-sensing Device that will accurately measure and display both voltage and actual masses of different solid samples ranging from 30 to 1,000 grams. Teams will also be tested with a written test to assess knowledge of the theories behind the event. These topics include but are with not limited to: the relationship between force stress, strain, resistance, mass, pressure, theory of LEDs, and process of calibration. 


Teams may bring one participant-constructed, Mass/Force-sensing device with a laptop or a calculator for programming/display, two calculators of any type, and one 2” or smaller three-ring binder, as measured by the interior diameter of the rings, containing information in any form and from any source. Sheet protectors, lamination, tabs and labels are permitted.

Teams must submit a Design log with their device. Information about the content contained in the Design Log is stated in the National Rules Manual. 


Highest score wins. A Total Score will be determined based off of guidelines stated in the National Rules Manual. 

Total Score = Build Score + Written Test Score + Design Log Score


Detector Building explained
Stations for Detector Building explained