Abstract: In a method for noncontact, radiation thermometric temperature measurement, a short-circuit photocurrent that is proportional to a received radiant power is produced in a photodiode radiation detector that is operating photovoltaically without bias voltage. The photocurrent is processed in a current to voltage converter. Subsequently, a temperature signal corresponding to the radiant power is generated. A corrective current, dependent on a temperature of the photodiode radiation detector, is added to the short-circuit photocurrent to compensate a fault current, wherein the fault current is based on an input bias current and an input offset voltage of the current to voltage converter across a temperature-dependent shunt resistance of the photodiode radiation detector. A device with a corrective current source controlled by a microcontroller is provided that can be used to perform the method.
Abstract: A method for firing raw ceramic blanks in a furnace includes the steps of guiding trains of blanks running parallel to one another along a longitudinal furnace section having a firing zone, wherein the trains are moved in opposite directions during one movement operation, and the furnace is loaded using blanks to be moved in a first direction. A furnace for firing raw ceramic blanks having a plurality of trains which are arranged parallel to one another and can move along a longitudinal furnace section, so trains comprising a plurality of furnace bogies on which the blanks are to be arranged, wherein the furnace section has a firing zone, and wherein the trains are moved in opposite directions, and the furnace is at a first end of the furnace section for loading the blanks to be moved in a first direction into the furnace.
Type:
Application
Filed:
September 12, 2012
Publication date:
March 21, 2013
Applicant:
Keller HCW GmbH
Inventors:
HEINER GAUSMANN, PETER HEITMANN, RAINER HÜSING