The uncertainties quoted in the descriptions below are expanded uncertainties representing a confidence level of approximately 95 percent.
pertaining to national and international acoustical standards, legislation and regulations;
acoustical calibrations and measurements;
noise and vibration problems including accelerometer calibration;
acoustical measurement and calibration system design;
precision mechanical, electrical, and electro-acoustical designs and system implementation; and
ultrasound power measurements and calibrations, and transducer design.
Specialized space available includes an anechoic chamber with a low frequency cut-off at about 80 Hz, a relatively large measurement space (15.2 m x 8.8 m x 6.7 m) for indoor semi-free-field measurements, and complementary acoustical instrumentation.
Fees for service
If you wish to order a calibration service, please request a quote from one of the following technical contacts:
Note that the calibration costs quoted DO NOT include shipping, insurance or the cost of a customs broker. The client must arrange and pay for these services separately.
Fee on request
Handling fee for instrument unsuitable for calibration. A fee is charged for any instrument found to be unsuitable for calibration. This fee covers receipt, inspection and return of the instrument and any work done prior to discovery of the fault.
Pressure sensitivity level of measurement microphone by the reciprocity technique. Measurement of the pressure sensitivity levels of up to two Laboratory Standard measurement microphones of the same type by the reciprocity method of IEC 61094-2
Sound level calibrators
Sound calibrator - single level/frequency setting. Measurement of sound pressure level, frequency and total distortion of a sound calibrator that provides a single level setting and a single frequency setting.
Sound calibrator - multifrequency and multilevel. Measurement of sound pressure level, frequency and total distortion of a multi-frequency, multi-level sound calibrator.
Sound calibrator - two level settings and one frequency setting. Measurement of sound pressure level, frequency and total distortion of a sound calibrator that provides two level settings and a single frequency setting.
Acceleration measuring chain - interferometric measurement over full frequency range. Measurement of voltage sensitivity of acceleration measuring chain (or accelerometer alone, by arrangement) by absolute interferometric measurement (ISO 16063-11 methods 1 and 2) at one-third-octave band centre frequencies from 10 Hz or 16 Hz (by arrangement) to 5 kHz.
Acceleration measuring chain - comparison measurement from 2 Hz to 10 Hz. Measurement of voltage sensitivity of acceleration measuring chain (accelerometer and associated conditioning amplifier) by comparison with a reference accelerometer at not more than four selected frequencies from 2 Hz to 10 Hz.
Accelerometer - shock comparison and sinusoidal comparison. Measurement of sensitivity of accelerometer by comparison with a calibrated reference accelerometer in response to sinusoidal excitation at one-third-octave band centre frequencies from 16 Hz to 5 kHz.
Fee on request
Accelerometer - shock comparison only. Measurement of shock sensitivity of accelerometer by comparison with a calibrated reference accelerometer for accelerations in the range from 200 m/s² to 100 000 m/s² (depending on accelerometer capability).
Fee on request
Medical ultrasound measurement and calibration
Loan of a calibrated portable NRC ultrasound power balance. A calibrated portable NRC ultrasound power balance, which has a range of 10 W, is delivered to the client's address by courier service. The client may use the balance for two days before returning the balance to NRC by courier service. An additional $100 per day is added to the fee if the balance remains with the client for more than two days. The balance is calibrated upon return and the client notified in writing.
Fee on request
Power output of medical ultrasound devices for diagnostics or physiotherapy. Measurement of the power output of medical ultrasound devices such as those used in diagnostics and physiotherapy. The output of one or two probes of a device is measured, at a maximum of five power settings in the range from 0.5 W to 5 W.