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"Temperature Sensor Dynamic Response Calibration Specification" Soliciting Comments

 Last Update: 2021-09-06
 Source: Internet
 Author: User

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[ Chemical Machinery network policies and regulations ] June 25, the National thermometer amount Technical Committee issued a "temperature sensor dynamic response calibration standard" draft, now seek advice from the relevant professional and technical personnel
.

Chemical Machinery Equipment Network Policies and Regulations Chemical Machinery Equipment Thermometer Sensors

The temperature sensor is composed of sensitive components, shell, lead wire and mounting flange.
Some temperature sensors have no mounting flange
.
Due to the thermal inertia of the temperature sensor, when measuring the rapidly changing temperature, it cannot immediately reflect the measured temperature, but it takes a certain time to reach the thermal equilibrium state
.

The purpose of revising this specification is to provide a basis for the dynamic response calibration of temperature sensors, to ensure the accuracy of dynamic temperature sensor measurement, and to design, modify, and use temperature sensors in industries such as aviation, aerospace, weapons, nuclear, automotive, and electric power.
Provide accurate data support
.
The existing measurement calibration specification JJF1049-1995 "Temperature Sensor Dynamic Response Calibration" was released in 1995 and implemented in 1996.
This specification can meet the needs of most temperature sensor dynamic response calibration, but it lacks a fast response temperature sensor about laser excitation.
The description of the calibration method.
In addition, the existing specifications lack the content of the uncertainty evaluation method, so the existing specifications need to be revised
.

This specification is revised in accordance with the requirements of JJF1071-2010 "Rules for the Compilation of National Metrology and Calibration Specifications" and JJF1059.
1 "Evaluation and Expression of Measurement Uncertainty"
.
This specification replaces JJF1049-1995 "Temperature Sensor Dynamic Response Calibration Specification"
.

Compared with JJF1049-1995 "Temperature Sensor Dynamic Response Calibration Specification", the main technical changes are as follows except for editorial changes: the water flow environment is changed to the liquid flow environment, and its speed requirements are modified; the laser To calibrate the dynamic temperature excitation source; increase the measurement uncertainty evaluation content
.

According to JJF1071-2010 "Rules for the Compilation of National Metrology and Calibration Specifications", the content of this specification includes scope, reference documents, overview, measurement characteristics, calibration conditions, calibration items and calibration methods, calibration result expression, recalibration time intervals, and appendices
.

This specification applies to the dynamic response calibration of contact temperature sensors for fluid temperature measurement newly manufactured (or newly purchased), in use, and repaired
.

　　Original title: "Temperature Sensor Dynamic Response Calibration Specification" Soliciting Comments

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