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GB/T 37250-2018: Test method for response time of functional ceramics for oxygen sensor
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 37250-2018 | English | 119 |
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Test method for response time of functional ceramics for oxygen sensor
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GB/T 37250-2018
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Basic data | Standard ID | GB/T 37250-2018 (GB/T37250-2018) | | Description (Translated English) | Test method for response time of functional ceramics for oxygen sensor | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q32 | | Classification of International Standard | 81.060.30 | | Word Count Estimation | 6,678 | | Date of Issue | 2018-12-28 | | Date of Implementation | 2019-11-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 37250-2018: Test method for response time of functional ceramics for oxygen sensor---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method for response time of functional ceramics for oxygen sensor
ICS 81.060.30
Q32
National Standards of People's Republic of China
Functional ceramic response time test method for oxygen sensors
Published on.2018-12-28
2019-11-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the China Building Materials Federation.
This standard is under the jurisdiction of the National Industrial Ceramics Standardization Technical Committee (SAC/TC194).
This standard was drafted. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai Huaxun New Materials Technology Co., Ltd., Shanghai Applied Technology
Xue, Shandong Industrial Ceramics Research and Design Institute Co., Ltd.
The main drafters of this standard. Xia Jinfeng, Zhou Guohong, Zhan Hongqiang, Lu Jiashen, Zhang Wei, Gao Jianhua, Li Lei, Chen Changzhu, Jiang Danyu.
Functional ceramic response time test method for oxygen sensors
1 Scope
This standard specifies the terms and definitions, principles, equipment, test equipment, specimens and tests for functional ceramic response time tests for oxygen sensors.
Gas, test procedures and test reports, etc.
This standard applies to functional ceramics for oxygen sensors.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 15289 Digital Storage Oscilloscope General Specification
GB/T 20727 Measurement of fluid flow in closed pipes Thermal mass flowmeter
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Response time responsetime
Oxygen sensor output voltage from 300mV to 600mV and from 600mV to a given gas flow rate and flow rate
The time required for the 300mV change.
4 Principle
When the fuel burns, as the air-fuel ratio changes, the oxygen concentration also changes, resulting in 0mV~ on the chip oxygen sensor.
The electromotive force varies between 1000 mV. This change lags behind the change in air-fuel ratio, which is the response time. Air-fuel ratio change
The response time is characterized by the change time of the electromotive force.
5 equipment
5.1 oscilloscope
The oscilloscope should meet the requirements specified in GB/T 15289.
5.2 Gas mass flow meter
Gas mass flow meters that meet the requirements of GB/T 20727 are mixed with different concentrations of oxygen (propane) and nitrogen, or air-fueled.
More than a controllable fuel engine.
6 test device
The test device is shown in Figure 1. The installation distance of the gas generator and sensor should be less than 1m. Gas flow in a gas generating device
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