A measuring device includes a light source that emits at least one first light pulse and at least one second light pulse toward a target part of an object, a photodetector that detects at least one first reflected light pulse returning from the target part and at least one second reflected light pulse returning from the target part, and a control circuit that controls the light source and the photodetector. The control circuit causes the light source to emit the at least one first light pulse and the at least one second light pulse at different timings. The control circuit causes the photodetector to detect a first component and output a first electric signal representing the first component. The control circuit causes the photodetector to detect a second component and output a second electric signal representing the second component.
