Some investigations in the area of high voltage, high current D-C amplifiers /

Issued also as thesis (M.S.) University of Illinois.

Molecular bandpass amplifiers. Contract AF33(616)-7252. Interim scientific report no. 1- [of the] Development Laboratory, Semiconductor Division, Hughes Aircraft Co.

Mode of access: Internet.

Switching-mode audio amplifier /

Issued also as thesis (M.S.) University of Illinois.

Design and development of LCRE fission-counter preamplifier /

"Contract AT(30-1)-2789."

Direct support and general support maintenance repair parts and special tools list for precision amplifier, Krohn-Hite model 7500 (NSN 6695-01-081-9053).

Includes index.

DS, GS, and depot maintenance manual : radio sets AN/VRC-53, AN/VRC-64, AN/GRC-125, and AN/GRC-160 and amplifier-power supply groups, OA-3633/GRC and OA-3633A/GRC.

"December 1969."

Direct support and general support maintenance repair parts and special tools list (including depot maintenance repair parts and special tools) for radio sets AN/VRC-53, AN/VRC-64, AN/GRC-125, and AN/GRC-160 and amplifier, power supply groups OA-3633/GRC and OA-3633A/GRC (parts list for OA-3633/GRC and OA-3633A/GRC, NSN 5820-00-973-3383, only).

Includes index.

General support maintenance manual : amplifier-converter AM-6879/URC (NSN 5820-01-070-1950).

Includes index.

Organizational, direct support, general support, and depot maintenance manual, including repair parts and special tools lists : amplifier, electronic control, AM-3209/ASN.

"October 1965."

Operator's and organizational maintenance manual : amplifier, radio frequency AM-1881/U.

"28 July 1960."

Field and depot maintenance manual : amplifier, radio frequency AM-1881/U.

"17 February 1961."

Operator's manual : amplifier group OG-181/VRC, (NSN 5895-01-172-2923).

Includes index.

Improving the Sensitivity and Bandwidth of In-Plane Capacitive Microaccelerometers Using Compliant Mechanical Amplifiers

This paper presents a method to enhance both the sensitivity and bandwidth of in-plane capacitive micromachined accelerometers by using compliant mechanical amplifiers, and thus obviating the compromise between the sensitivity and bandwidth. Here, we compare one of the most sensitive single-axis capacitive accelerometers and another with large resonant frequency reported in the literature with the modified designs that include displacement-amplifying compliant mechanisms (DaCMs) occupying the same footprint and under identical conditions. We show that 62% improvement in sensitivity and 34% improvement in bandwidth in the former, and 27% and 25% in the latter can be achieved. Also presented here is a dual-axis accelerometer that uses a suspension that decouples and amplifies the displacements along the two in-plane orthogonal axes. The new design was microfabricated, packaged, and tested. The device is 25-mu m thick with the interfinger gap as large as 4 m. Despite the simplicity of the microfabrication process, the measured axial sensitivity (static) of about 0.58 V/g for both the axes was achieved with a cross-axis sensitivity of less than +/- 2%. The measured natural frequency along the two in-plane axes was 920 Hz. Displacement amplification of 6.2 was obtained using the DaCMs in the dual-axis accelerometer. 2013-0083]