Abstract: System making it possible to analyze electrical or other transients with the aid of an easily displaceable, miniature, passive, electrically insulated sensor. It comprises a monomode laser source connected by an optical fibre to an optical transient analyzer. The sensor is formed by a circuit receiving the signal to be analyzed and making it possible to modulate the light intensity in the fibre by means of an integrated optics modulating circuit and which receives the signal in electrical form. An adapting circuit at the input makes it possible to convert the signal to be analyzed into an electrical signal, where necessary. It is constituted by a coil in the case of a magnetic field, an antenna in the case of an electrical field, a quartz in the case of a force, etc.

Abstract: The photonic sampler device increases the dynamics of analysis of the transients by increasing the number of samples, and comprises a recording tube formed so as to receive a single optical channel at the input. Thus, the photocathode is of reduced size. In addition, the fluorescent screen is coupled to a single detector strip which has a high number of cells and whose longitudinal axis corresponds to the scanning direction. The magnification of the tube is determined so as to be adapted to the dimensions of the detector cells. The light amplification obtained may easily reach 250 and the number of samples may for example be 1728.