Systems and techniques for scanner scale implementation and operation using a plurality of load cells mounted in a planar arrangement. According to the present invention, the piezoelectric sensor is mounted in the channel defined between the unit cells of the secondary battery module. The apparatus includes a ground contact of a printed circuit board of the computing device. In another aspect, the load sensor device has embedded logic circuitry to allow a microcontroller to individually address load sensor devices organized into an array. With such a method, an improvement of controlling is achieved by one or more parameters of the gas turbine being measured or determined, by the effective thermal output power of the gas turbine being calculated from the measured or determined parameters, and by the calculated effective thermal output power being used for controlling the gas turbine.