Vocational Education Training in Environmental Health Sciences: Operating Sound-Measuring Equipment, Module 1

摘要

In this instructional module, students learn to calibrate, operate, and position a Type 2 sound level meter (SLM) for taking accurate screening survey measurements. Training Prerequisites: Before beginning this module, students should have some working knowledge of science. Objectives. Upon completing this module, students will be able to perform the following functions: (1) Select decibel ranges, check the condition of batteries, and set the SLM's response for measuring sound levels. (2) Test the SLM's decibel level response at the standard calibrating frequency, 1000 hertz (Hz), using a sound level calibrator as the calibration source. (3) Make screening survey measurements, using a gasoline-powered lawnmower as a noise source.