SAM #PANRSA-26-P-0000-033738

U.S. Army award for laboratory-standard microphones and calibration services

The U.S. Army awarded a purchase to restore essential standards for its Acoustics Lab at Redstone Arsenal. - Government buyer: U.S. Army Test, Measurement, and Diagnostic Equipment Activity (USATA), through W6QK ACC-RSA / ACC-RSA. - Award: $35,888.40. No contractor or OEM is identified by name in the provided information. - Products and services requested: - 1 × 1/2-inch laboratory standard calibration condenser microphone, model 4180-PTO. - 1 × 1-inch laboratory standard pressure microphone, model 4160-PTO, with 200V polarization. - 1 × primary DPLA calibration for type 4180, covering 10 Hz to 25 kHz. - 1 × primary DPLA calibration for type 4160, covering 2 Hz to 10 kHz, with results calculated according to IEC 61094-2:2009/AMD1:2022. - 1 × 1.2 m BNC-to-BNC coaxial cable, part number AO-0087-D-012-. - 2 × shipping units. - Notable requirement: The microphones are needed to replace damaged or lost laboratory standards and support reciprocity calibration; the purchase is intended to help prevent a potential Acoustics Lab shutdown. The requirement allows the specified items or equivalents.

Description

The U.S. Army TMDE Activity (USATA) has a requirement to implement a brand name purchase of one (1) Lab Standard Microphone System model or equivalent that will be a suitable replacement for the 4180/4160 Microphones are the main standard for the Acoustics Lab. Three standards have been lost due to damage. Reciprocity calibration requires three microphones of the same model to function appropriately. APSL needs to replace these standards to prevent a potential shutdown of the acoustics laboratory. All accredited parameters within the acoustics lab are tied to these laboratory grade Microphones. The Lab Standard Microphone System shall include the following specifications or equivalent (if not brand name):

Requirements:

4180—PTO   1/2" Calibration Condenser Microphone, laboratory standard.                                          Qty: 1

ET-2014-W-002- Primary DPLA Microphone Calibration 1/3 octave frequencies 10Hz to 25 kHz for type 4180                                                                                                                                                                                             Qty: 1

4160—PTO      1" Laboratory Standard Pressure Microphone, 200V Polarization.                                   Qty: 1

ET-2014-W-001-Primary DPLA Microphone Calibration 1/3 octave frequencies 2Hz to 10kHz for type 4160. Results calculated according to IEC 61094-2:2009/AMD1:2022                                                                   Qty:1

AO-0087-D-012- Cable, coax single screen, BNC (M) to BNC (M), 1,2m (4.0ft), max.+85°C (185°F)       Qty:1

Shipping                                                                                                                                                                                  Qty:2  

Delivery Requirements

Shipping Address: U.S. Army TMDE Activity, Attn: Ricardo Gutierrez, Building 5435, Redstone Arsenal, AL 35898

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