Gravimetric Measuring System Module Identification for Temperature Control

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Solution Overview

Problem

Gravimetric measuring systems face challenges in matching the operating routine with the selected module constellation, particularly due to varying heat capacities and outputs from different modules, which complicates temperature control in the weighing chamber.

Innovation Solution

Incorporating device-side and module-side identification interface components that allow the control apparatus to automatically detect the module constellation and select the appropriate operating routine, including static and dynamic cooling capacities based on the identified modules, to maintain optimal temperature control within the weighing chamber.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If different functional modules are inserted into the weighing chamber, then the balance can be adapted to different weighing tasks, but the heat capacities and heat outputs vary, creating problems with temperature control

Engineering Contradiction:
Improveadaptability to different weighing tasksVSAvoidtemperature control in weighing chamber
Core Design Contradiction:
Adaptability or versatilityVSTemperature

Solution Approach 1:

The control apparatus determines the constellation of functional modules before initiating the weighing process. Based on this predetermined knowledge of which modules are present, the system pre-calculates and sets the appropriate cooling capacity, eliminating the need for complex real-time temperature adjustments during weighing operations

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system changes the cooling capacity parameter based on the detected module constellation. Different combinations of functional modules trigger different predetermined cooling capacity settings, allowing the temperature control system to adapt to the thermal characteristics of various module configurations

Inventive Principle:
Principle #35Parameter changes

2Temperature

If complex closed-loop temperature control systems are used, then temperature stability is improved, but system complexity and costs increase

Engineering Contradiction:
Improvetemperature stabilityVSAvoidcomplexity of temperature control system
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The control apparatus determines the module constellation in advance and sets the appropriate cooling capacity before weighing begins. This preliminary configuration eliminates the need for complex real-time feedback control during operations, simplifying the overall system while maintaining temperature stability

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses the identification interface components and control apparatus to automatically determine module configuration and set cooling parameters without external intervention. The predetermined cooling capacities are selected automatically based on the detected constellation, reducing the need for complex manual configuration or monitoring systems

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12152928B2Gravimetric measuring system
Publication Date: 2024.11.26 SARTORIUS LAB INSTR GMBH & CO KG
  • US12152928B2 patent drawing
  • US12152928B2 patent drawing
  • US12152928B2 patent drawing

AI summary

A gravimetric measuring system (10), includes a balance (12) with a weighing chamber (22) surrounded by a weighing chamber wall (23, 24, 26, 28); an electromechanical weighing system (181); an electronic control apparatus (36) for controlling the system operation according to algorithms stored in a memory (363) thereof; and a plurality of functional modules (14, 16) configured to be inserted into module receptacles (283) arranged on the weighing chamber wall (28). Each module receptacle (283) has a device-side identification interface component (30a); and each functional module has a corresponding module-side identification interface component (30b). The control apparatus (36) identifies each functional module (14, 16) inserted into a module receptacle (283), through interaction between the respective device-side and module-side identification interface components (30a, 30b) and selects one of a plurality of operating routines according to algorithms stored in the memory.