Calibration Capabilities

Verification of sound level meters to BS EN 61672/3 or BS 7580 part 1 as appropriate.... see more

Verification of sound level meters to BS EN 61672/3 or BS 7580 part 1 as appropriate. Includes a full calibration of the measurement microphone; this covers sensitivity at 250Hz, relative frequency response 100-20kHz and, on request, the polarised self-capacitance and extending the low frequency calibration of the microphone down to 2 Hz. see less

Verification of sound calibrators to BS EN IEC 60942 in half inch configuration; this provides the... see more

Verification of sound calibrators to BS EN IEC 60942 in half inch configuration; this provides the sound pressure level, level stability, frequency stability and distortion. Multi-level and frequency calibrators can be accommodated on request along with any environmental measurements provided by the device. UKAS calibration of Bruel & Kjaer 4426 on all settings is included in our accreditation. see less

Calibration of I”, ½” and ¼” IEC BS EN 61094-4 measurement microphones; includes three independent measurements... see more

Calibration of I”, ½” and ¼” IEC BS EN 61094-4 measurement microphones; includes three independent measurements pressure sensitivity and relative frequency response from 100 Hz to 100k Hz as appropriate. On request the polarised self-capacitance of the microphone in half-inch configuration can be provided. Microphones can be calibrated as a capsule, to give the open circuit sensitivity, or with their own preamplifier as a MicSet which will give the closed-circuit sensitivity. If the MicSet supports TEDS, the results of the calibration can be written to it on request. Half-inch microphones can have their low frequency relative response extended down to 2 Hz (UKAS accredited). see less

Meets the requirements of UKAS LAB23 for floor tapping machine calibration. Standard service includes cleaning of... see more

Meets the requirements of UKAS LAB23 for floor tapping machine calibration. Standard service includes cleaning of the device as required before calibration. see less

Verification of dodecahedron loudspeaker directivity in accordance with ISO 16283-1, Annex A.

Ear Simulators and Earphone Couplers from a wide range of manufactures are calibrated including: Bruel &... see more

Ear Simulators and Earphone Couplers from a wide range of manufactures are calibrated including: Bruel & Kjaer (including HATS head and torso simulators), Larson Davis, Gras (including Kemar head and torso simulators) and Head Acoustics (including HMS etc head and torso simulators) see less

For single axis accelerometers providing measurement of sensitivity 80Hz or 160Hz as appropriate & a relative... see more

For single axis accelerometers providing measurement of sensitivity 80Hz or 160Hz as appropriate & a relative frequency response test at fixed frequencies over a total range of 10Hz to 5Hz (depending on accelerometer specification) see less

Single or tri-axial calibration of portable vibration meters to ISO BS 8041:2005 or ISO EN BS... see more

Single or tri-axial calibration of portable vibration meters to ISO BS 8041:2005 or ISO EN BS 8041:2021-2 as appropriate using the pattern evaluation dynamic excitation method prescribed. Optional full calibration of the transducer is available if required. see less

Calibration of level, level stability, frequency, frequency stability & distortion of most types of portable single... see more

Calibration of level, level stability, frequency, frequency stability & distortion of most types of portable single and multi-level and multi-frequency vibration calibration units. see less

Geophone tested as complete unit on our dedicated shaker.

Conformance check by comparison. We have a fully maintained reference station at our offices. This is... see more

Conformance check by comparison. We have a fully maintained reference station at our offices. This is measuring Particulates, NOx and Ozone. see less

Our SITMA-specific building acoustics package addresses your requirements, encompassing UKAS calibration, a onetime precision measurement of... see more

Our SITMA-specific building acoustics package addresses your requirements, encompassing UKAS calibration, a onetime precision measurement of a tapping machine, and the evaluation of directivity and stability for measurement speakers. see less

Calibration of artificial mouths from Bruel & Kjaer 4227, GRAS 44AA, and Head Acoustics, among others.

Calibration of artificial mastoids to BS EN 60318-6:2008 from Bruel and Kjaer 4930 and Larson Davis... see more

Calibration of artificial mastoids to BS EN 60318-6:2008 from Bruel and Kjaer 4930 and Larson Davis MC493C (mechanical impedance with associated ear simulator). see less

Free field calibration of microphone measurement systems with their associated preamplifier and power module as appropriate.... see more

Free field calibration of microphone measurement systems with their associated preamplifier and power module as appropriate. Covers sensitivity and relative frequency response over the frequency range of 100 Hz to 20 kHz to meet requirements of BS 61094-8:2012. Results are directly traceable to a national standards laboratory. Popular for airport noise monitoring stations. see less

In-air calibration of hydrophones. Exposed to a series of specific test frequencies ranging from 25Hz to... see more

In-air calibration of hydrophones. Exposed to a series of specific test frequencies ranging from 25Hz to 315Hz at a controlled level of 124dB SPL. The resulting audio is recorded & analysed to determine the RMS and peak decibel levels for each frequency. see less

Campbell Associates have UKAS accreditation for free field calibration of complete HATS systems in their anechoic... see more

Campbell Associates have UKAS accreditation for free field calibration of complete HATS systems in their anechoic room. The advantage of free field testing is that the HATS system can be calibrated as a complete unit as it is intended to be used rather than disassembling and calibration of individual components. HATS are typically used for precision applications in the telecommunications, automotive, audiometric and research applications where measurement integrity is essential. Most popular Manufacturers and Models Bruel and Kjaer 4128 Head and Torso Simulator GRAS Kemar 45BB and 45BC acoustic manakins. see less

Pressure comparison calibration of LSM and WSM pressure microphones from earphone couplers.