title: The thermometer and the calorimeter, or the best choice for data acquisition in the sampling of biological rhythms.
abstract: The comparison between measurements effected by different apparati shows that a given class of instruments provides an integral set of measurements. This characteristic has a certain disadvantage: the modification of the spectral bandwidth is limited to an attenuation of 3 dB. However, it also has certain advantages. The integral measurement (or the counting measurement) makes it possible to satisfy Shannon's sampling criteria by avoiding the necessary, anti-aliasing filtering which is commonly impossible to realize on measurements of a biological nature. A second advantage is linked to the reduction of the background noise on the band.
authors.affiliation: Laboratoire de Génétique Neurogénétique et Comportements, URA 1294 du CNRS, UFR Biomédicale des Saints-Pères, Paris, France.
authors.forename: J
authors.initials: J
authors.lastname: Beau
mesh_terms: D002151:Calorimetry; D003627:Data Interpretation, Statistical; D015233:Models, Statistical; D010507:Periodicity; D013821:Thermometers