Smithsonian Contributions to Knowledge, Volumen29Smithsonian Institution, 1903 |
Dentro del libro
Resultados 1-5 de 19
Página 3
... bolometer strip s , which represents one branch ( 1 ) of the Wheatstone bridge W. The other branches ( 2 , 3 , 4 ) consist of suitably chosen resistance standards . For reasons relating to the heat - conduction discrepancy , the form ...
... bolometer strip s , which represents one branch ( 1 ) of the Wheatstone bridge W. The other branches ( 2 , 3 , 4 ) consist of suitably chosen resistance standards . For reasons relating to the heat - conduction discrepancy , the form ...
Página 4
... bolometer strip etched off for a length of 7 cm . was about 80 ohms , while the resistance of the parts not freed from silver was computed as about 4 ohm , only .03 ohm of which makes up the total resistance of the flaps . 3 The third ...
... bolometer strip etched off for a length of 7 cm . was about 80 ohms , while the resistance of the parts not freed from silver was computed as about 4 ohm , only .03 ohm of which makes up the total resistance of the flaps . 3 The third ...
Página 5
... bolometers , carefully jacketed by a tight metallic case and appropriately insulated . The change of internal resistance experienced by this instrument gave us the necessary data for changes of temperature encountered during the ...
... bolometers , carefully jacketed by a tight metallic case and appropriately insulated . The change of internal resistance experienced by this instrument gave us the necessary data for changes of temperature encountered during the ...
Página 7
... bolometer strip while the pressure of the expanding gas falls from p , to pa is first to be found . P2 Thereafter this elec tric datum is to be expressed in its equivalent of temperature . 1. Measurement of the initial pressure P1 ...
... bolometer strip while the pressure of the expanding gas falls from p , to pa is first to be found . P2 Thereafter this elec tric datum is to be expressed in its equivalent of temperature . 1. Measurement of the initial pressure P1 ...
Página 8
... bolometer strip , the branch 2 consisted of a set of standards Z ( given in full in fig . 5 ) , the resistance of which could be made very nearly equal to that of the strip . The branches 3 and 4 contained coils suitably wound of ...
... bolometer strip , the branch 2 consisted of a set of standards Z ( given in full in fig . 5 ) , the resistance of which could be made very nearly equal to that of the strip . The branches 3 and 4 contained coils suitably wound of ...
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Términos y frases comunes
absorbed absorption actinic amount animals apparatus argon atomic weight balance barometer bell jars Blue bolometer breath Brown-Séquard and d'Arsonval capacity carbonic acid cent chemical chlorine closed by fusion CO₂ color tube computed condenser constant correction counterpoise cubic centimetres cylinder density of oxygen desiccator diameter drying tube dust effect error eudiometer exhausted expired air figure filled flask fluid fusible metal gas-holder gases globe grammes heat hydrogen hydrostatic weighing increase injected ionized leakage liquid litres aspirated litres per hour magnesium manometer means measured mercury method millimetre mixture moisture nitrogen nuclei observations organic matter oxalic acid oxide oxidizable oxygen palladium passed pentoxide phosphorus phosphorus pentoxide placed pressure produced proportion quantity rabbits ratio reduced scale series of experiments shown in Fig Smithsonian solution stopcock sulphuric acid temperature thermometer tion tube containing vacuum vapor vessels voltameter volume ΙΟ