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Calibration device

A technology for calibrating devices and sockets, applied in measuring devices, instruments, measuring electrical variables, etc., can solve problems such as small amount of standard liquid, inaccurate calibration, difficult storage, etc., achieve easy installation and use, and ensure stability and accuracy Effect

Pending Publication Date: 2021-12-31
GUANGZHOU CEPREI CALIBRATION & TESTING CENT SERVICE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the purpose of the embodiment of the present invention is to provide a calibration device, which solves the problems of small amount of standard solution, difficult storage and inaccurate calibration in the prior art

Method used

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Embodiment 1

[0057] Such as Figure 1 ~ Figure 2 A calibration device shown is used to calibrate the reference error of the conductivity meter, including: a dry well furnace 1, a deformable heat preservation cover plate 2, a first socket assembly 3, a second socket assembly 4, a resistance box 5, a first magnetic Suction patch 6, second magnetic attraction patch 7.

[0058] The dry-well furnace 1 is provided with a furnace chamber 8. Preferably, in this embodiment, a portable dry-well furnace with high precision, high stability and high uniformity is used to prevent the conductivity of the heating medium from being generated on the electrode 15 of the conductivity meter. influences.

[0059] The heat preservation cover plate 2 is buckled on the furnace mouth of the dry well furnace 1, and forms a closed space for accommodating the conductivity meter electrode 15 with the furnace chamber 8 of the dry well furnace 1; preferably, the heat preservation cover The plate 2 is made of deformable...

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Abstract

The invention discloses a calibration device. The calibration device comprises a dry well furnace, a deformable heat preservation cover plate, a first socket assembly, a second socket assembly, a resistance box, a first magnetic attraction patch and a second magnetic attraction patch. The dry well furnace is provided with a furnace chamber; the heat preservation cover plate is buckled on a furnace opening of the dry well furnace; and the first socket assembly comprises a first socket and a second socket, the second socket assembly comprises a third socket and a fourth socket, and the resistance box is provided with a first binding post and a second binding post. A closed space for accommodating the electrode of the conductivity meter is formed between the furnace chamber of the dry well furnace and the deformable heat preservation cover plate, so that the constant temperature condition of the electrode is ensured; by arranging the two magnetic attraction patches which are respectively attracted with the first electrode and the second electrode of the conductivity meter, a closed loop is formed between the resistance box and the electrodes of the conductivity meter, so that the reference error of the conductivity meter is calibrated through the resistance box, and the resistance box is easy to install and use.

Description

technical field [0001] Embodiments of the present invention relate to the field of conductivity meter calibration, and in particular to a calibration device. Background technique [0002] Conductivity meter is a conventional measuring instrument used to measure the conductivity in electrolyte solution, widely used in metallurgy, food, pharmaceutical, biochemical, electronics and other industries. The conductivity meter is mainly composed of an electronic unit and a sensor unit. According to the requirements of the "Conductivity Meter Verification Regulations", the calibration of the conductivity meter is divided into electronic unit calibration and supporting calibration. The supporting calibration of the conductivity meter uses a standard solution of known conductivity to calibrate the two ranges of the instrument. [0003] In the prior art, 147.6μS / cm (25°C) and 1411μS / cm (25°C) potassium chloride conductivity solution standard substances are usually used to calibrate the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00
CPCG01R35/005
Inventor 刘苢张贝贝叶健强
Owner GUANGZHOU CEPREI CALIBRATION & TESTING CENT SERVICE
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