Title: Datasets of high spatial resolution scans of the airborne ultrasound field of an ultrasonic welding machine either with or without an artificial head at a worker’s sedentary position
Authors: Schöneweiß, Robert, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 1.6, Schall, ORCID: 0000-0002-0347-5015
Kling, Christoph, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 1.6, Schall, ORCID: 0000-0001-7766-5199
Koch, Christian, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 1.6, Schall
Contributors: HostingInstitution: Physikalisch-Technische Bundesanstalt (PTB), ISNI: 0000 0001 2186 1887
Resource Type: Dataset / Measurement Data
Publisher: Physikalisch-Technische Bundesanstalt (PTB)
Dates: Available: 2019-06-06
Classifications: PACS 43 Acoustics ; PACS 43.35+d Ultrasonics, quantum acoustics, and physical effects of sound ; PACS 43.35.Zc Use of ultrasonics in nondestructive testing, industrial processes, and industrial products ; PACS 43.50.+y Noise: its effects and control ; PACS 43.58.Fm Sound level meters, level recorders, sound pressure, particle velocity, and sound intensity measurements, meters, and controllers ; PACS 43.58.+z Acoustical measurements and instrumentation ; PACS 43.60.+d Acoustic signal processing ; PACS 87.50.yk Dosimetry/exposure assessment
File: Download File (application/zip) 7.26 GB (7792085055 Bytes)
MD5 Checksum: 7b3c960b75190027bc254b3e29bd7bd9
SHA256 Checksum: c9e8875bc789901285db6ec3839b18ae9802632a4d0b63a85dfef08263d311d5
Keywords: Acoustics ; Noise ; Ultrasound ; Airborne Ultrasound ; Workplace ; Measurement ; Exposure ; Sound pressure measurement ; Artificial head ; Sound field
Abstract: This dataset contains measuring data which are the result of investigations of the influence of a person on an airborne ultrasound field. These investigations have been conducted within the scope of the EMPIR project 15HLT03: “Ears II - Metrology for modern hearing assessment and protecting public health from emerging noise sources”. In the context of “Ears II”, they served gaining knowledge for occupational safety and health. Here, the aim was to investigate the influence of a worker on the airborne ultrasound field at his or her workplace. Therefore, a reference workstation was set up in the laboratory of the Physikalisch-Technische Bundesanstalt (PTB). The airborne ultrasound field of a typical industrial source of airborne ultrasound (an ultrasonic welding machine) was measured with a scanning microphone system with a high spatial resolution. 2 measurements have been performed with an artificial head in front of the ultrasonic welding machine at a worker’s sedentary position. Those 2 measurements have been performed at a vertical surface with dimensions 24 cm x 27 cm (width x height) in the same plane as the ear canal of the artificial head, one measurement each at the left and the right side of the artificial head. For comparison with an uninfluenced sound field, these measurements have been repeated at the same surfaces without the artificial head in front of the ultrasonic welding machine. The measuring data is the discrete Fourier transform of the squared signal voltage re 1 V^2 represented in the frequency domain, converted by fast Fourier transform, in the frequency range 0 – 100 kHz with a resolution bandwidth of 15.625 Hz. The data can be converted to sound pressure levels (SPL) using the given calibration values.
Other: EMPIR projects are co-funded by the European Union’s (EU) Horizon 2020 research and innovation programme and the EMPIR participating states.
Funding: European Commission (EC), ISNI: 0000 0001 2162 673X, Grant Title: Metrology for modern hearing assessment and protecting public health from emerging noise sources, Grant Number: EMPIR 15HLT03 Ears II