Verification Plates for Endotoxin Reader Temperature and Optical Calibration
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Solution Overview
Problem
Bacterial endotoxin readers require periodic verification of their optical reading and temperature measurement performance to ensure accurate results, as deviations can negatively affect reaction outcomes.
Innovation Solution
The development of temperature and optical verification plates (TVP and OVP) that can be removably mounted on the spindle of the bacterial endotoxin reader, featuring temperature sensors and optical components to verify the performance of temperature and optical systems, respectively, using binary indicators and calibration methods to ensure accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional verification methods are used, then verification can be performed, but measurement precision and reliability are insufficient due to lack of standardized verification tools
Solution Approach 1:
The verification plate creates an optical copy of temperature data by converting temperature sensor readings into visual binary patterns that the reader's optical system can detect. This allows the optical system to verify temperature measurement accuracy without requiring direct electronic sensor comparison, thereby improving both measurement precision and verification reliability through cross-validation of measurement methods
Solution Approach 2:
The verification plate acts as an intermediary device between the temperature sensor and the optical detection system. It receives temperature data from sensors, converts it to visual binary representations, and presents it to the optical system for verification, enabling precise and reliable verification through standardized intermediate conversion
2Measurement precision
If the reader system is made more complex to improve verification capability, then verification accuracy improves, but device complexity increases
Solution Approach 1:
The verification plate serves multiple functions: it acts as a temperature sensor carrier, an optical reference target, a calibration standard, and a verification medium all in one device. This multi-functionality allows the system to perform comprehensive verification without adding separate complex devices, thereby improving measurement precision while minimizing device complexity
Solution Approach 2:
The verification plate uses variable parameters (binary patterns representing different temperature values) to encode verification information. By changing the optical parameters (reflectivity, absorptivity) of different regions on the plate corresponding to different binary values, the system achieves precise optical reading verification through parameter variation rather than structural 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
The verification plates enable precise calibration and verification of temperature and optical performance, ensuring that the reader operates within specifications, thereby maintaining the accuracy of bacterial endotoxin detection.
Implementation Method 1
the temperature sensor being configured to measure a temperature of the body
Implementation Method 2
The temperature indicator is at least one light emitting diode (LED) and/or at least one liquid crystal display (LCD)
Implementation Method 3
The temperature indicator is at least one light emitting diode (LED) and/or at least one liquid crystal display (LCD)
Implementation Method 4
the temperature indicator being readable by an optical bench of the reader
Data Source
AI summary
Verification plates for a bacterial endotoxin reader are provided, namely a temperature verification plate (TVP) and optical verification plate (OVP). The TVP has a body configured to be placed on a spindle of said reader and rotated by said spindle. The body has a temperature verification circuit with a temperature sensor and a temperature indicator. The temperature sensor is configured to measure a temperature of the body rotated by the spindle of the reader. The temperature indicator optically represents a value of the temperature measured by the temperature sensor. The temperature indicator is readable by an optical bench of the reader. The OVP has a body with a plurality of apertures located along a periphery that line up with an optical bench of the reader. Light produced by a light source of the reader can pass through the aperture and an intensity measured by a photodetector of the reader.