マシン トラブルシューティング - CEM ノイズ 測定 デバイス
現代 産業 生産 is inseparable from machines, and the engines used by machines often produce various noises. 今日では, environmentally friendly production is promoted, and the the use of noise meters for noise control has become one of the necessary methods for noise control.
There should be distinctions in the the selection of noise meters. Different types of noise meters should be used to measure different environments. Guangzhou Hongcheng has launched a series of professional noise meters, such as the noise meter DT-85A, which is suitable for temperature measurement in communities and schools. , noise in the home environment; the noise meter DT-815 is particularly suitable for measuring 機械 産業 騒音, etc. その シリーズ の 騒音 meters can be widely used in various noise projects, quality control, health prevention and various environmental sound room measurements, such as noise measurement applications in residential areas, industrial and mining plants, schools, airports and other places.
騒音 制御 in 機械 生産. いつ 診断 故障 for excessive engine noise, you can use a noise meter to first check, such as those caused by air compressors and power take-offs. Do not mistake these noises for engine noise. Remove the Accessory drive belts to eliminate noise caused by these devices. Noise can also travel to metal parts that are otherwise fine, so using a noise meter and stethoscope will help pinpoint 場所 の エンジン 騒音。
エンジン駆動 コンポーネント および アクセサリ such as ギア駆動 ファン クラッチ, 油圧 ポンプ, ベルト駆動 充電器, エアコン コンプレッサー, and superchargers may 貢献 to エンジン 騒音. 使用 a 騒音 メーター as an aid, the following information can be used to guide the diagnosis of engine noise:
メイン ベアリング ノイズ: The knocking noise caused by loose main bearings can be heard when the the engine is under load. It is loud and dull. This noise is loudest when the engine is hauling or driving with a heavy load. This knocking sound is duller than the noise produce by the connecting rod. Guangzhou Hongcheng's noise meter DT-8852 is used for measurement. It can be divided into A and C gears. Use A gear to measure lower audio noise, and C gear to measure high-frequency noise. The data can be stored for easy connection to a computer for analysis. Check the source of the noise.
