Measuring set for implementing high performance thermobalance measurement requirement by utilizing general electronic balance

Abstract

The invention discloses a measuring device which utilizes a common electronic balance to realize the measurement requirements of a high-performance thermobalance and comprises a PID (Proportion Integration Differentiation) temperature control system, an interface set through mechanical coupling, the electronic balance, a resistance furnace and a moving component, wherein a publicly-known computeris connected with the electronic balance for collecting parameters of the electronic balance and is also connected with a step motor in the moving component for outputting a start command and a closecommand of the step motor. In the invention, from the exterior of the mechanical part of the thermobalance, the resistance furnace, a supporting plate, an outer cover, a glass cover and the electronic balance are arranged from bottom to top, supporting posts and glass tubes are arranged between the resistance furnace and the supporting plate, and a sleeve, the moving component and the outer coverare mounted on the supporting plate; the glass cover is mounted on the glass cover, and the electronic balance is mounted on the glass cover. The invention utilizes the function of the mechanical coupling by the program control of a computer to be combined with the automatic self clearing function of the electronic balance so as to effectively clear the self zero drift of the electronic balance and realize the durable continuous measurement of the applied common balance.

Description

technical field [0001] The present invention relates to a thermal balance, more particularly, to a measuring device that utilizes an ordinary electronic balance to realize the long-time continuous measurement requirement of a high-performance thermal balance. The sampling period of the thermobalance is adjustable from 10s to 1h, and the recording time can be set freely according to the measurement requirements. Background technique [0002] A thermobalance is an instrument that automatically records the relationship between the mass of a substance and the function of temperature (or time) under programmed temperature control. [0003] Thermobalances can be divided into electronic balances, heating furnaces, and PID temperature control systems (stored in a known computer) according to the components. According to the weighing method, it can be divided into lever balance, wire support balance, spiral spring balance and boom balance. [0004] The biggest obstacle to using ord...

AI Technical Summary

Problems solved by technology

This zero drift has no regularity and is difficult to eliminate

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