MICS - Detailed Specifications

Precision Measurements Require Precision Microphones^TM

IEC61094-4 Compliant

Type 1 / Type 1.5^TM

In this day of precision electronics, the accuracy of acoustic measurements is primarily determined by the input transducer (microphone). Repeatable measurements require improved stability over time and under all measurement conditions. ACO Pacific's "Alternative" Family is the answer. Type 1 Measurement Microphones The "Alternative" Family of TYPE 1 measurement microphones are designed to meet stringent IEC61094-4 and ANSI International standards. The Stainless Steel bodies, selected stainless and titanium diaphragm materials, and quartz and other "0" Tempco insulators assure excellent long-term and temperature stability. The flat, predictable Free Field and Pressure responses of these 1, 1/2, and 1/4 inch microphones is reflected in the individual "birth certificates" supplied with each microphone. Using a microphone is now a pleasure not a chore. Frequency response to 120 kHz (-2 dB) (Model 7016), Noise floors to 0 dBA (Model 7020), maximum input to 175 dBSPL (3% THD) (7017) and Phase Matched Pairs (I & PM Series) are among the features offered by these microphones. The MK224 Electret (prepolarized) Type 1, 7052EW are also available. Companion power supplies - the PS9200 series, and the companion 4000 series preamps round out the product line. These precision microphones are mechanically, acoustically, and electrically compatible with their more costly counterparts. Over 45 years of manufacturing and design experience comes with every microphone and system. Competitive End-user and OEM pricing is available. Click here to see specification chart FREQUENCY RESPONSE CHART The Frequency Response chart shown above provides an indication of the typical responses of our standard Type 1 and Type 1.5TM measurement microphones. The P curve is the actual pressure response as derived from testing with an Electrostatic Actuator. The F curve is the corrected Free Field Response curve. Extensive testing in Anechoic Chambers has established this Free Field Correction Factor. This procedure is standard through out the industry. Thus for Pressure response microphones - only one curve - the actual electrostatic actuator measurement - is provided. Each ACO Pacific, Inc Type 1 Measurement Microphone is supplied with an individual "Birth Certificate". This certificate includes the Open Circuit Sensitivity at 250 Hz in dBV/Pa (dB relative to 1 V rms per Pascal) and also stated in mV/Pa. These values have been corrected to 760 mm/Hg. The capsule capacitance in pF is also listed, as are the actual test conditions. The frequency response chart supplied is derived from testing with an electrostatic acuator . Free Field curves are calculated from established Free Field Correction Factors and a Free Field Curve is plotted. Free Field Response curves are based on having the microphone grid in place on the microphone capsule. Return to Top Accessories: PREAMPS 1 Inch Mics - 4022 (4012 Preamp + AD0122 Adaptor) 1/2 Inch Mics - 4012 Preamp - No adaptors 1/4 Inch Mics - 4016 (4012 Preamp + AD0016 Adaptor) 4212 CCLD Preamp Right Angle Preamp - 4012RAS Right Angle IEPE Preamp - 4212RAS (Electret Capsules) 4048 Phantom Powered Preamp (Electret Capsules) Adaptors - Preamp AD0122 - 1 Inch Mic to 4012 (1/2 inch preamp) AD0016 - 1/4 Inch Mic to 4012 (1/2 inch preamp) RAS1 - 1 inch mic adaptor to 4012RAS preamp Adaptors - Calibrator (521) QD7 - 1/4 Inch Mic Adaptor Windscreens - WS1 - 3 Inch Diameter WS7 - 7 Inch Diameter -80T Series 80ppi Hydrophobically & UV Treated for Outdoor applications WS1-80T - 3 Inch Outdoor Windscreen WS7-80T - 7 Inch Outdoor Windscreen Return to Top