Tapered Anechoic Chambers 

Tapered Anechoic Chamber Solutions from Cuming Lehman Chambers 

It’s nearly impossible to perform VHF/UHF measurements in a rectangular chamber.  In the 1960’s Emerson determined that tapering one end of an anechoic chamber would cause the chamber to act like an indoor ground reflection range. Tapered anechoic chambers are specialized facilities designed to provide a controlled environment for accurate acoustic measurements. 

These chambers are essential for various industries and research fields, enabling precise testing and evaluation of sound characteristics without interference from external noise. Tapered anechoic chambers feature walls that gradually change angle, typically from a wider opening to a narrower end. This design helps in reducing sound reflections and controlling the acoustic environment more effectively. The tapered shape can enhance the chamber's ability to absorb sound across a broader frequency range. 

Meeting The Needs Of Your Application 

Tapered Chambers work very well at the lower frequencies. Their design forms a uniform illumination across the test region, providing consistent and accurate measurements of electromagnetic and acoustic properties. The tapered end of the chamber forces the wall images close together, which forms a source antenna array and maximizes the effectiveness of the testing environment. This unique configuration not only ensures that the chambers can accurately replicate an outdoor ground reflection range but also augments signal reflection and absorption efficiency, which is crucial for precise analysis. Tapered Chambers are usually a less expensive option compared to rectangular antenna measurement chambers or compact ranges. They require less infrastructure support due to their reduced size, ensuring easier setup and maintenance while still delivering high-quality performance in testing applications.  

Our Commitment to Quality 

We offer comprehensive installation services to ensure that the chambers are set up correctly and function as intended. Our ongoing support and maintenance services help clients keep their chambers in optimal condition, including regular inspections and updates to maintain performance and compliance. 

PPG’s Cuming Lehman Chambers is well-versed in relevant industry standards and regulations governing acoustic testing and electromagnetic compatibility. We design our chambers to comply with these standards, ensuring that clients can rely on the results for regulatory purposes while implementing quality assurance processes throughout the design and construction phases.