Barrie : Règlement no 2006-140, art. 5(3) — Noise By-law

Vibration

• (a) Instrumentation
• (i) Measuring Device

A Vibration Velocity Detector shall be used.

• (ii) Calibrator An electrical reference signal of known voltage and frequency shall be used in the field for calibration of the Vibration Velocity Detector excluding the transducer. A reference vibration source shall be used for laboratory calibration of the complete Vibration Velocity Detector.
• (b) Measurement Location Vibration measurements shall be made at a point of reception inside a building below grade or less than 1 m above grade, preferably on a basement floor close to an outside corner.
• (c) Use of Instrumentation
• (i) Battery Check If the measuring device is battery powered, the condition of the battery shall be checked after the device has been allowed to warm up and stabilize and after each measurement has been made. The device shall not be used unless the battery condition is confirmed to be within the range recommended by the manufacturer for proper operation.
• (ii) Calibration Field calibration shall be carried out before and after each measurement. Laboratory calibration of the complete Vibration Velocity Detector as used in the field, including the transducer, shall be carried out not less than once per calendar year and the results certified By-law 2006-140 35 Office Consolidation The Corporation of the City of Barrie Noise By-law
• (d) Instrument Configuration
• (i) Mounting The transducer shall be affixed to a part of the structure so as to prevent movement of the transducer relative to the structure. The preferred structural element is the basement floor as indicated in clause (b).
• (ii) Transducer Orientation If three vector components of vibration velocity are recorded individually, it is preferable to orient the transducers such that the three axes of measurement are
• (a) vertical,
• (b) radial (along a horizontal line joining the location of the blast to the location of measurement) and.
• (c) transverse (along a horizontal line at right angles to the line joining the location of the blast to the location of measurement).
• (e) Readings
• (i) Peak Particle Velocity The peak particle velocity in cm/s shall be reported.
• (ii) Variation in Calibration

A measurement shall not be reported if calibration after the measurement is more than 5% different from that before the measurement.

• (iii) Battery Deterioration

A measurement shall not be reported if the battery condition after the measurement is not within the range recommended by the manufacturer for proper operation.