TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

Error analysis of the heat pulse method for measuring soil heat capacity, diffusivity, and conductivity.  1, fiche 1, Anglais, - heat%20pulse%20method

Record number: 1, Textual support number: 2 CONT

Since the low cost sensor technologies available present several limitations to their inclusion in this system, it was developed and implemented a low cost sensor, as described by Valente et al.(1997), based on the heat-pulse and capacitance methods. In the first method the maximum temperature rise measured at some distance from a line heat source can be used to determine the volumetric heat capacity and hence the water content of a porous media, such as soil. The second method relates the volumetric water content with the capacitance change of a probe, inserted in the soil, according to its dielectric properties. Simultaneous use of both methods improves sensor accuracy, gives built-in fault detection capability, and makes possible self-calibration procedures.  2, fiche 1, Anglais, - heat%20pulse%20method

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 CONT

Mesure de l'humidité du sol. On citera en particulier : - La méthode par prélèvement d'échantillons du sol [...] - La méthode neutronique (sonde à neutrons) [...]. - La méthode par choc thermique permettant d'évaluer la capacité calorifique du sol, laquelle dépend de la teneur en eau.  1, fiche 1, Français, - m%C3%A9thode%20par%20choc%20thermique

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

Since the low cost sensor technologies available present several limitations to their inclusion in this system, it was developed and implemented a low cost sensor, as described by Valente et al.(1997), based on the heat-pulse and capacitance methods. In the first method the maximum temperature rise measured at some distance from a line heat source can be used to determine the volumetric heat capacity and hence the water content of a porous media, such as soil. The second method relates the volumetric water content with the capacitance change of a probe, inserted in the soil, according to its dielectric proprieties. Simultaneous use of both methods improves sensor accuracy, gives built-in fault detection capability, and makes possible self-calibration procedures.... In a capacitance-based method, the soil moisture can be obtained by measuring the capacitance that varies with the dielectric properties of materials.  1, fiche 2, Anglais, - capacitance%2Dbased%20method

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 CONT

Mesure de l'humidité du sol. On citera en particulier : - La méthode par prélèvement d'échantillons du sol [...] - La méthode neutronique (sonde à neutrons) [...]. - La méthode par choc thermique [...]. - Les méthodes basées sur la mesure d'une résistance ou d'une capacité électrique du sol ou d'éléments hygroscopiques laissés à demeure et en équilibre d'humidité avec le sol. Ces méthodes s'avèrent généralement peu fiables.  1, fiche 2, Français, - m%C3%A9thode%20bas%C3%A9e%20sur%20la%20mesure%20d%27une%20capacit%C3%A9%20%C3%A9lectrique%20du%20sol

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 CONT

The Room Guardian Alarm detects intruders in two ways : the 360-degree Passive Infrared Sensor detects a moving person from any direction up to 30-feet away, while the Volumetric Sensor detects the sudden pressure changes that occur when a door or window is forced open. Once an intrusion is detected, the Room Guardian sounds a piercing alarm.  4, fiche 3, Anglais, - volumetric%20sensor

Fiche 3,  Justifications,  Français

Fiche 3,  Justifications,  Espagnol

Fiche 4,  Justifications,  Anglais

Record number: 4, Textual support number: 1 CONT

In this instrument, used to measure gas flows, a swirl is imparted to the flowing fluid by a fixed set of radial vanes. As this swirl goes into an expanding tube, it forms a precessing vortex that is detected by a heated thermistor sensor. The frequency of the precession is claimed to be proportional to the volumetric flow rate within an accuracy of 0. 75%.  1, fiche 4, Anglais, - vortex%2Dprecession%20flowmeter

Fiche 4,  Justifications,  Français

Record number: 4, Textual support number: 1 OBS

[Les débitmètres à vortex ou compteurs à tourbillons] utilisent l'effet vortex qui se produit naturellement lorsqu'un fluide en écoulement turbulent heurte un obstacle non profilé.  2, fiche 4, Français, - d%C3%A9bitm%C3%A8tre%20%C3%A0%20vortex%20de%20pr%C3%A9cession

Record number: 4, Textual support number: 2 OBS

VOIR précession  1, fiche 4, Français, - d%C3%A9bitm%C3%A8tre%20%C3%A0%20vortex%20de%20pr%C3%A9cession

Fiche 4,  Justifications,  Espagnol