title: Evaluation of Three Sensor Types for Particle Motion Measurement.
abstract: All fish sense acoustic particle motion; some species also sense pressure. Concern over the effects of anthropogenic sounds is increasing the need to monitor acoustic particle motion. Particle motion can be measured directly using vector sensors or calculated from pressure gradients. This article compares three devices that measure particle motion: a three-axis accelerometer, a three-axis velocity sensor, and two 4-element hydrophone arrays. A series of sounds (constant-wave tones, white noise, and Ricker wavelets) were played from a fixed-position projector. The particle motion of sounds from imploding light bulbs was also measured.
authors.affiliation: JASCO Applied Sciences, Dartmouth, NS, Canada, B3B 1Z1. Bruce.Martin@jasco.com.
authors.forename: Bruce
authors.initials: B
authors.lastname: Martin
authors.affiliation: JASCO Applied Sciences, 2004 Coleridge Drive, #101, Silver Spring, MD, 20902, USA. David.Zeddies@jasco.com.
authors.forename: David G
authors.initials: DG
authors.lastname: Zeddies
authors.affiliation: JASCO Applied Sciences, Dartmouth, NS, Canada, B3B 1Z1. Briand.Gaudet@jasco.com.
authors.forename: Briand
authors.initials: B
authors.lastname: Gaudet
authors.affiliation: JASCO Applied Sciences, Dartmouth, NS, Canada, B3B 1Z1. Joel.Richard@jasco.com.
authors.forename: Joel
authors.initials: J
authors.lastname: Richard
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D009038:Motion; D059629:Signal-To-Noise Ratio
keywords: Accelerometer; Fish hearing; Particle velocity