Abstract: A system (200) for monitoring conveyor belts is disclosed. The system (200) includes a sensor loop stack (110), RFID, a transmitter (104), a detector (106), RFID-readers and circuitry (108). The sensor loop stack incorporated and/or installed (inserted) into a conveyor belt (102). The transmitter (110) is configured to generate an electromagnetic field. The detector (106) is configured to measure an induced electric field from the sensor loop stack (110). The circuitry (108) is configured to detect damage of the conveyor belt based on the measured induced electromagnetic field.

Abstract: A system (200) for monitoring conveyor belts is disclosed. The system (200) includes a sensor loop stack (110), RFID, a transmitter (104), a detector (106), RFID-readers and circuitry (108). The sensor loop stack incorporated and/or installed (inserted) into a conveyor belt (102). The transmitter (110) is configured to generate an electromagnetic field. The detector (106) is configured to measure an induced electric field from the sensor loop stack (110). The circuitry (108) is configured to detect damage of the conveyor belt based on the measured induced electromagnetic field.

Abstract: A system for monitoring conveyor belts is disclosed. The system includes a printed inductive antenna loop, a transmitter, a detector, and circuitry. The antenna is printed on and/or installed (inserted) into a conveyor belt. The transmitter is proximate the printed antenna and is configured to generate an electromagnetic field. The detector is configured to measure an induced electric field from the printed inductive antenna loop. The circuitry is configured to detect damage of the conveyor belt based on the measured induced electromagnetic field.

Abstract: A method for determining the measurement value of a measurement quantity of a substance using a color indicator, the color indicator having at least one indicator field having previously been brought into contact with the substance, is characterized in that the color indicator and a color reference are visually sensed, the color reference having at least two reference fields of different colors, that an intermediate value of the measurement quantity is obtained with computer assistance based on the captured color values of the reference fields and the indicator field, and that the measurement value of the substance is obtained from this intermediate value.

Abstract: A method for determining the measurement value of a measurement quantity of a substance using a color indicator, the color indicator having at least one indicator field having previously been brought into contact with the substance, is characterized in that the color indicator and a color reference are visually sensed, the color reference having at least two reference fields of different colors, that an intermediate value of the measurement quantity is obtained with computer assistance based on the captured color values of the reference fields and the indicator field, and that the measurement value of the substance is obtained from this intermediate value.