US 2003/0142316 A1 · Turbidity sensor with temperature sensing for household appliances

Abstract

Sensor for household appliances, in particular washing machines and dishwashers, comprising a housing 2 which comprises first and second housing fingers 8, 10 extending from a basis, a first optical element 12 being arranged in the first housing finger 8, a second optical element 14 which is arranged in the second housing finger 10 wherein a sensing beam 16 transmitted and received by the optical elements 12, 14 is propagating between the housing fingers 8, 10 external to the housing 2 for sensing of the turbidity of a cleaning medium at least partially surrounding the housing 2, and a temperature sensor 18 which is arranged in the second housing finger 10 in a greater distance from the basis 4 compared to the second optical element 14 for sensing the temperature of the cleaning medium.

Claims32

Dependent claims

Sensor for household appliances, in particular washing machines and dishwashers, comprising:

a housing (2) which comprises first and second housing fingers (8, 10) extending from a basis (6),
a first optical element (12) which is arranged in the first housing finger (8),
a second optical element (14) which is arranged in the second housing finger (10) wherein a sensing beam (16) being transmitted and received by the optical elements (12, 14) propagates between the housing fingers (18, 10) exterior to the housing (2) for sensing the turbidity of a cleaning medium at least partially surrounding the housing (2), and
a temperature sensor (18) which is arranged, for sensing the temperature of the cleaning medium, in the second housing finger (10) in a greater distance from the basis (6) compared to the second optical element (14).

1 more element

Dependencies are inferred from the claim text.

Turbidity sensor with temperature sensing for household appliances

Life of this patent

Turbidity sensor with temperature sensing for household appliances

Life of this patent

Abstract

Claims32