CS18 SPL-VLF Calibration System SPL Very Low Frequency n of alibratio ucers, C transd ressure uring p meas ones microph  Very low frequency calibration of pressure transducers and pressure measuring devices  Pressure chamber secondary calibration of measuring microphones and microphone measuring chains  True pressure chamber calibration with an acoustic calibrator  Calibration of pressure transducers  Calibration of all established measuring microphones (capacitor and electrets microphones, ...)  No special mechanical adaptation necessary  Complete exposition of the test object to the pressure field  Supply of an alternating sound pressure level for the calibration of dynamic pressure measuring chains and devices, in particular of sound level meters  Upgradeable to a combined acoustical calibration system e.g. CS18 SPL / SPL-VLF or an CS18 FF / SPL-VLF Range of use  Calibration laboratories  Departments of measuring instrument verification in research and industry, for example in the fields of automotive, aviation and space industry, military research, medical and environmental engineering, ...  Quality assurance in manufacturing of pressure transducer and measuring microphones.

CS18 SPL-VLF Calibration System SPL Very Low Frequency Components     Vibration control system SRS-35, SPEKTRA SQ-03 Very-low-frequency pressure generator, SPEKTRA PA14-80 Power amplifier, SPEKTRA Reference standards: - BN-A-03 Acoustic calibrator pistonphone type LS (124 dB / 250 Hz) - BN-A-04 pressure reference standard  Standard-PC Specification of CS18 SPL-VLF for environmental conditions: temperature 23°C (± 2°C) and relative humidity 30 % ... 75 % Description Size of pressure chamber Signal form Calibration System CS18 for very low frequency sound pressure level 20 cm x 20 cm x 65...