The project aims in developing continuous measurements using cold atom interferometers in order to improve their sensitivity while maintaining their accuracy. The first developments in continuous operation have already demonstrated record performance for rotation measurements, but need improvement to realise their full potential for rotation, but also acceleration measurements. Ultimately, these sensors must reach the detection limit, intrinsically linked to quantum projection noise. This method is very general in atomic quantum sensors and can also be applied to different schemes of interferometer, atomic clocks... Master thesis work: This continuous measurement requires a sequence whose cycle time is twice as short as the interrogation time. To achieve this regime, certain modifications must be made to the existing experiment in order to simultaneously realise atomic beam splitters and mirror for three independent atomic samples. In particular, this involves the change of the Raman lasers system used to manipulate the atomic wave packets. The preparation and detection of atomic samples must also be modified, as must the timing sequence, to ensure that the light emitted by the atoms during these stages does not disturb the atoms inside the interferometer.