This standard is applicable to temperature measurement during the performance test of automotive brakes.
1 Measuring devices
1.1 Thermocouple: the thermocouple material shall be reasonably selected, and standardized thermocouple wire shall be preferred (see Annex A for the recommended thermocouple material). It is 0.3~0.5mm in diameter, and meets the technical requirements of the products upon delivery.
Two structural types of thermocouple are recommended.
1.1.1 Plug-in thermocouple (see Figure 1).
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1.1.2 Armored thermocouple: thermocouple made of thermocouple wires, insulating material and metal sleeve through processing, soldering and assembling, which may be ordered from the manufacturer as needed.
1.2 Display and recording device: secondary instrument for displaying and recording the dynamic temperature of brake shall be reasonably selected.
1 Measuring devices
2 Thermocouple installation
3 Measurement method
4 Recording and plotting of curves (together with the record form and curve of brake test)
Annex A (Informative) Technical data of standard thermocouple
Annex B K values of five types of thermocouple (Informative)
Additional explanation
