Acoustic Measurement Sensors & Instrumentation For Precise Sound Measurements SOUND POWER urn npDAOUU OCCUPATIONAL HEALTH MACHINERY MONITORING ENVIRONMENTAL NOISE ikllklfl ~ICB„ WIND ENERGY SOUMD INTENSITY LOUDSPEAKER DESIGN PCB Piezotronics IT Toll-Free in USA 800-828-8840 W71 6-684-0001 ©www.pcb.com @ www.pcb.com/shopsensors

Acoustic Measurement Products PCB® — Trusted by Companies and Laboratories Worldwide PCB Piezotronics, Inc. offers a variety of acoustic measurement products, including modern prepolarized and traditional externally polarized condenser, array, probe, low-profile surface, and special purpose microphones. Microphone products are complemented by an assortment of preamplifiers, signal conditioners, A-weighting filters, handheld calibrators, and accessories. All PCB® acoustic products are made from the highest quality materials and are used in a variety of ndustries including: automotive, aerospace...

Acoustic Measurement Products In-house Manufacturing All PCB® acoustic products are made from the highest quality materials. PCB‘s in-house manufacturing capabilities allows us to control all the factors that affect quality and delivery. We know what it takes to manufacture the best products and do not out-source parts to machine shops that do not fully understand sensor manufacturing and the effects of contamination. This is why PCB® has made significant investments in our people and operations, including: High Volume Robotic Machining Cells Laser Welding PCB’s self-sufficient facilities control...

Acoustic Measurement Products Selecting the Right Microphone There are a number of different product choices when deciding to purchase a system to measure noise. In some cases multiple microphone and preamplifier models will do the job for the same application. This brochure will help you choose the system that will work best for your application. For additional information please visit www.pcb.com and download the PCB® Microphone Handbook. Microphones Field Types Free-field There are three common sound fields for precision condenser microphones. The first and most common is the Free-field type....

Acoustic Measurement Products Pressure-field The second type is called a Pressure-field. A Pressure-field microphone is designed to measure the sound pressure that exists in front of the diaphragm. It is described to have the same magnitude and phase at any position in the field. It is commonly used in an enclosure or cavity, which is small when compared to wavelength. The microphone will include the measurement changes in the sound field caused by the presence of the microphone. The sound being measured is typically coming from a single source. Testing of pressure exerted on walls, exerted on...

Acoustic Measurement Products Microphone Comparison PCB Piezotronics ?TToll-Free in USA 800-828-8840 ?T 716-684-0001 ® www.pcb.com ® www.pcb.com/shopsensors

Acoustic Measurement Products PCB Piezotronics IT Toll-Free in USA 800-828-8840 "B 71 6-684-0001 ©www.pcb.com @ www.pcb.com/shopsensors

Acoustic Measurement Products Modern Prepolarized Precision Condenser Microphones and Preamplifiers Prepolarized microphones were designed a few decades after their counterpart the traditional externally polarized microphones were developed. Prepolarized microphones have many advantages over the externally polarized models. This design utilizes power circuitry that PCB® invented for sensors, called ICP® power. By applying a polymer coating to the top of the backplane and embedding a charge on it, you can now eliminate costly 200V power supplies and use an 2-20 mA constant current supply or signal...

Acoustic Measurement Products Model 426A11 1/2” ICP® Preamplifier Model 426A07 1/4” ICP® Preamplifier Model 426B03, 426A05 1/4” ICP® Preamplifier Modern Prepolarized (0 V) Precision Condenser Microphones Free-eld Model Number Open Circuit Sensitivity Dynamic Range - 3% Distortion Limit [1] Dynamic Range Cartridge Thermal Noise [1] Temperature Range These low-noise, general purpose, prepolarized microphone preamplifiers are powered by any constant current (2-20 mA) ICP® sensor power supply. All models are supplied with TEDS capability and are designed to be used with prepolarized microphones....

Acoustic Measurement Products Prepolarized ICP®Array Microphones Prepolarized ICP® Array microphones are a cost-effective alternative to the 377 series and are suitable for measuring sound within the normal range of the human hearing. PCB’s 130 series of Array microphones are single piece units that include a built-in preamplifier. The Array microphones have excellent phase specifications. Using multiple microphones and spacing them in a predetermined pattern coordinated with the proper software spatial transformation of a complex sound field is projected to effectively map the acoustic energy...

Acoustic Measurement Products Traditional Externally Polarized Precision Condenser Microphones and Preamplifiers Externally polarized microphones were the original standard for all test and measurement acoustic applications. This design utilizes a separate 200V power supply and special cables with 7 pin style connectors. Their ease of design enables a large product offering. Externally polarized microphones are typically used to replace microphones in existing older systems, or when a prepolarized alternative is not available. Models 2570 2575 1” Microphones Building and Room Acoustic Analysis...

Acoustic Measurement Products Additional Acoustic Products and Accessories High Temperature Probe Microphone In-line “A-weighting” Filter Model 377B26 Probe microphones are compact units designed for use in difcult measurement situations, such as small cavities, harsh environments, and high temperatures. The acoustic signal is guided to the microphone through a detachable, stainless-steel probe. The high acoustic input impedance of the probe tip minimizes its inuence on the acoustic eld. Probe microphones are internally compensated to equalize the static pressure at the probe tip with the internal...