AUTOMATIC READING DEVICE FOR AN ICE CALORIMETER.

The design of an automatic reading device for an ice calorimeter, the operation of which is based on the weak dependence of the constant of the ice calorimeter on the excess, in relation to atmospheric pressure in its calorimetric vessel, is described. The measurement error at the upper limit of 400 J is approximately 9. 5%. When the magnitude of the automatic shift of the plunger of the dosing apparatus was read with the aid of a reading microscope and a IZA-2 scale, the constant of the instrument was 46. 28 J/mm, while the measurement error at the upper limit of 3600 J was approximately 1%.