Standard No.:	JB/T 7253-1994
English Name:	Cycloid Pin Gear Speed Reducer Noise Measurement Method
Chinese Name:	摆线针轮减速机 噪声测定方法
Chinese Classification:	J19    Coupling, brake and speed variator
Professional Classification:	JB    Professional Standard - Machinery
Issued on:	1994-7-18
Implemented on:	1995-7-1
Status:	superseded
Superseded by:	JB/T 7253-2016
Superseded on:	2017-4-1
Abolished on:	2017-04-01
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	150.00
Delivery:	via email in 1~3 business day

本标准规定了摆线针轮减速机噪声声功率级测定的测试条件、测试仪器、测点位置及数量、声功率级的计算以及测试结果的判定原则。 本标准适用于在符合规定的试验场地（即环境修正量K2小于或等于3dB）测定减速机的A计权声功率级。在有要求时，根据本标准也可测定频带声功率级和指向性指数。