Accession Number:

AD0694881

Title:

A DIFFERENTIAL D-C AMPLIFIER WITH VERY HIGH INPUT IMPEDANCE,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

• Ch'en,Chun-Chiang
• Chang,Kuan-Hua
• Hu,Ch'i-Wei

Report Date:

1969-05-21

Pagination or Media Count:

17.0

Abstract:

A new differential d-c amplifier was designed to be used in conjunction with microelectrode techniques to record the electrical activity of a single biological cell. The differential d-c amplifier consists of a differential cascade and a negative feedback circuit. Specifications of the amplifier are given. The new amplifier has high anti-interference ability, and has been extensively used in a biological laboratory for more than 3 years. Operating experience shows the new amplifier has excellent performance and high stability and is easy to operate.

Descriptors:

• (*ELECTROPHYSIOLOGY
• *AMPLIFIERS)
• DIRECT CURRENT
• NERVE CELLS
• VOLTAGE
• MEASUREMENT
• ELECTRICAL IMPEDANCE
• CHINA

Subject Categories:

• Electrical and Electronic Equipment
• Biomedical Instrumentation and Bioengineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE