Temperature sensor and temperature measuring system using the te

Details Temperature sensor and temperature measuring system using the te Temperature sensor and temperature measuring system using the te

1996-07-18

1998-04-07

Gutierrez, Diego F. F.

Thermal measuring and testing

Temperature measurement

In spaced noncontact relationship to specimen

374141, 374153, 374183, 399 69, G01K 114, G01K 1308, G01K 716, G01K 116

Patent

active

057356041

ABSTRACT:
The invention relates to a sensor unit and a temperature measuring system that includes the sensor unit for the contactless determination of the object temperature (T.sub.v) of at least a part of an object. The sensor unit is placed near the object and includes a first and second plate. A temperature-sensitive sensor is disposed on each plate to produce first and second sensor signals which represent the temperature of the first and second plates, respectively. The system also includes a control unit which processes the first and second sensor signals in combination for determining the object temperature (T.sub.v). Preferably, the control unit employs a Kalman filter. Also, the temperature measuring system is applied to an image reproduction machine to determine the temperature of a roller or belt.

REFERENCES:
patent: 3321974 (1967-05-01), Sterbutzel
patent: 3417617 (1968-12-01), Rall
patent: 5123752 (1992-06-01), Paz-Pujalt et al.
patent: 5287155 (1994-02-01), Arai et al.
La Technique Moderne, L'Exposition De L'Institute of Physics et de la Physical Society, p. 313, (Jul. 1963).

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