The invention discloses a
signal detector which comprises a
signal detecting box and a detecting cable. The
signal detecting box is internally provided with a controller, a
wireless communication module, a display screen, a
data acquisition module, a
signal conditioning circuit, a load simulating module, a testing interface, a
relay module and an RS485 communication module. The
signal detector according to the invention simulates a
missile hanging-up state through the load simulating module, thereby realizing normal operation of an on-plane weapon
control system and an on-plane
missile launching device, performing
simulation detection on a crosslinking signal between the
missile and the on-plane weapon
control system without mounting a training missile, accurately detecting a fault reason,and preventing missile damage caused by misjudgment. Furthermore the
signal conditioning circuit is used for performing
signal conditioning on four DC power supply signals supplied to the missile byan on-plane power supply and an indicating signal that is transmitted from the on-plane weapon
control system to the missile, thereby ensuring
identifiability of the
data acquisition module, improvingsignal acquisition accuracy and further ensuring high accuracy of the simulating detecting result.