Abstract: The embodiments relate to a sensor strip (13) and to a flexible support strip (12) for receiving the sensor strip and for fixing the strip to a surface e.g. to the back of a test person. According to the embodiments, the sensor strip (13) has a reference point (18), (for example a snap fastener connection), with which it can be fixed to a reference surface (16) of the support strip. This allows the position of the sensor strip (13) to be unambiguously defined on the support strip (12). The further extension of the sensor strip (13) lies in a pocket (23) so that it can slide, allowing the relative movement between the support strip and the sensor strip if the support strip is lengthened (represented by a dot-dash line). The entire sensor unit is thus advantageously more comfortable to wear, as the elastic support strip (12), for example, can freely follow the back movements of the test person.

Abstract: In a method for the production of optical bands with several optical fibers, the surface of the optic fibers in said bands is treated such as to increase the optical damping in sections of the optic fibers. The generated damping may be reliably adjusted, whereby during (or after) the processing of the surfaces a measuring light is introduced into the fiber optic and the light output at the other end of the band is measured by means of a sensor such as a CCD camera. Possible production errors can thus be compensated for during the production process, for example, by an increased process time for the optic fiber. Optical sensor bands can be produced by the above method for application in the bumpers of motor vehicles as recognition sensors for the impact of a pedestrian. Other applications in which the bending of a sensor band is to be determined by optical means are also envisaged.

Abstract: An optical fiber sensor has a sensor band of optical sensor fibers. The band is connected on both ends to a transmitter unit and a receiver unit, the transmitter unit feeding optical signals into the optical fibers, the signals being optically evaluated with regard to the intensity thereof by the receiver unit. Parallel electrical conductors are located in the sensor band and can, for example, be designed as ribbon cables. The electrical conductors allow an additional electrical connection of the transmitter unit and the receiver unit, so that external cables advantageously need only be connected to one of the two units. The difficulty of connection is thereby reduced, and the wearing comfort is increased for the application of the fiber sensor, for example, as a back sensor.