公开(公告)号：US20030179650A1

公开(公告)日：2003-09-25

申请号：US10063098

申请日：2002-03-19

Applicant: BHA Group Holdings, Inc.

Inventor： Michael M. Mahler ,  David F. Johnston ,  Terry L. Farmer

IPC: H04B017/00

CPC classification number: H04R29/001

Abstract: A system and method for verification of acoustic horn performance is disclosed. This system and method includes a pressure detecting mechanism that converts at least one vibratory sound energy pulse, which is followed by at least one vacuum pulse or at least one negative pressure pulse, into a signal that is proportional to a level of sound energy, and the pressure detecting mechanism is operable to be connected to an acoustic horn. There is a measurement device that measures a value that correlates to the signal that is proportional to a level of sound energy and is electrically connected to the pressure detecting mechanism.

Abstract translation: 公开了用于验证声喇叭性能的系统和方法。 该系统和方法包括压力检测机构，其将至少一个振动声能脉冲转换成与声能水平成正比的信号，随后是至少一个真空脉冲或至少一个负压脉冲， 压力检测机构可操作地连接到声喇叭。 测量装置测量与声能级成正比并与电压相连的压力检测机构的信号。

公开(公告)号：US20030010203A1

公开(公告)日：2003-01-16

申请号：US09900082

申请日：2001-07-06

Applicant: BHA Group Holdings, Inc.

Inventor： Terry L. Farmer ,  David F. Johnston ,  Sven Richter ,  Michael M. Mahler

IPC: B03C003/76

CPC classification number: B03C3/763 ,  Y10S323/903

Abstract: An improved method and system is provided to control the rapping process used to clean the internal collection plates and discharge electrodes of electrostatic precipitators. The system obtains the performance characteristics of a first rapper and calculates a rapper lift value. The system then obtains performance characteristic data from two or more additional rappers and calculates rapper lift values for each of the rappers. Finally, the system compares the rapper lift value of each additional rapper and adjusts its performance characteristics so that it substantially approximates the performance characteristics of the first rapper.

Abstract translation: 提供了一种改进的方法和系统来控制用于清洁内部收集板的振打过程和静电除尘器的放电电极。 该系统获得第一说唱歌手的表演特征并计算一个说唱歌手的升力值。 然后，该系统从两个或更多个附加的游戏者获得性能特征数据，并计算每个游戏者的说唱歌手升高值。 最后，系统比较每个附加说唱机的敲击器升力值并调整其性能特征，使得其基本上接近于第一说唱机的性能特征。