Calorimetric measuring apparatus

US5547282A · kind A · utility

Assignee

• Ika-Analysentechnik GmbH · DE

Inventors

• Hubert Pinhack · Bad Krozingen, DE
• Jurgen Fuhrmann · Schwedt, DE
• Rolf Gegg · Glückstadt, DE

Key dates

• Filing date: Apr 28, 1994
• Grant date: Aug 20, 1996
• Expiry date: Apr 28, 2014

Classification

• Technology area (CPC G): Physics
• CPC primary: G05D23/20
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A calorimetric measuring apparatus is provided with a decomposition vessel whose interior is configured as a reaction chamber and which can be tightly sealed, the decomposition vessel being removably arranged inside a jacket, and having at least one temperature sensor for measuring the temperature reached inside the decomposition vessel. Characteristic of the measuring apparatus is that the jacket has a measuring vessel which accommodates the decomposition vessel; at least some areas of the wall zone of this measuring vessel comprise a heat-conductive material; the inner walls of this measuring vessel are spaced from the outer walls of the decomposition vessel, thereby forming an interspace in which a gaseous intermediate medium is provided; and the measuring apparatus has at least a second temperature sensor for measuring the temperature change establishing itself in the heat-conductive wall zone of the measuring vessel. With the aid of the measuring apparatus calorimetric determinations of calorific value are possible with high precision and short measuring periods, whereby a comparatively large number of measurements can be carried out in one day.