Rheometer Optical Data Transmission
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Solution Overview
Problem
Rheometers face difficulties in running measurement leads along moving axes on air bearings, which interferes with sensitive sensing technology, and inductively transmitting energy and data influences the measurement process.
Innovation Solution
Integration of optical transmitters and receivers between the measuring shaft and support units for contactless data and energy transmission, using LEDs or laser diodes for transmission and photosensors for reception, with a processor unit controlling data output and energy supply to ensure reliable and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If measurement leads are run along the measuring axis on air bearings, then electrical connection for sensors is achieved, but the sensitive sensing technology of the rheometer motor is interfered with
Solution Approach 1:
The patent replaces the mechanical/electrical connection system (measurement leads running along the measuring axis) with an optical transmission system. Optical transmitters and receivers are used to establish communication between the stationary support unit and the rotating measuring shaft unit, eliminating physical electrical connections that would interfere with the air bearing and sensitive sensing technology.
Solution Approach 2:
The patent introduces optical transmitters and receivers as intermediary devices to transfer data and energy between the stationary and rotating parts. These optical components act as mediators that enable communication without requiring direct electrical contact, thus avoiding interference with the motor's sensing technology while maintaining reliable data transmission.
2Ease of operation
If inductive transmission is used for data and energy transmission, then contactless transmission is achieved, but the measurement process is influenced
Solution Approach 1:
The patent substitutes inductive (electromagnetic) transmission with optical transmission. Instead of using electromagnetic fields that could interfere with the rheological measurements, the system employs optical transmitters and receivers to achieve contactless data and energy transmission, thereby maintaining measurement precision while preserving the ease of contactless operation.
3Measurement precision
If measuring sensors are integrated inside the moving measuring part, then measurement data acquisition is improved, but data transmission to the evaluation unit becomes difficult
Solution Approach 1:
The patent replaces complex wired data transmission systems with optical transmission. By using optical transmitters on the rotating measuring shaft unit and corresponding receivers on the stationary support unit, the system achieves simplified contactless data transmission from integrated sensors while maintaining measurement precision and reducing overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Simplifies data transmission and energy supply to measuring sensors on the moving part, maintaining operational reliability and accuracy of rheological measurements without influencing the sensitive sensing technology.
Implementation Method 1
the transmitting units having optical transmitters, preferably LEDs or laser diodes or light diodes
Implementation Method 2
the transmitting units having optical transmitters, preferably LEDs or laser diodes or light diodes
Implementation Method 3
the receiving units having optical receivers, preferably photosensors
Data Source
AI summary
A rheometer includes a measuring shaft unit being rotatably mounted in a stationary support unit and having a measuring shaft carrying a measuring part. Transmitting units having optical transmitters are disposed on the support unit and receiving units having optical receivers are disposed on the measuring shaft unit for data transmission therebetween. A measuring sensor disposed on the measuring shaft detects at least one parameter. The transmitting and receiving units are disposed between the measuring shaft unit and the support unit and are associated with one another for exchanging data. The optical transmitters on the support unit transmit data and energy to the optical receivers on the measuring shaft unit. The transmitting units feed or transmit to the optical receivers at least energy required by the optical transmitters on the measuring shaft unit and the measuring sensor to output or transmit data to the optical receivers.