Tag: Biomedical amplifiers
-
Key Features of EMG Amplifiers
The amplifiers used for clinical EMG recording must meet same strict specifications for low-leakage currents as do ECG, EEG, and any other amplifiers used to measure human body potentials. EMG amplifier gains are typically x1000 and their bandwidths reflect the transient nature of the single motor unit (SMU) action potentials. An EMG amplifier is generally…
-
5 Established Isolation Architectures for Medical Isolation Amplifiers
Medical isolation amplifiers provide an ultra-low conductive pathway between the input (patient) terminals and the output terminals and ground. This pathway provides what is called ohmic or galvanic isolation for a patient. In medical applications, this isolation is required for reasons of patient safety. The dc resistance between input and output terminals is typically on…
-
Key Features of ECG Amplifiers
A differential amplifier is employed as ECG amplifier instead of the typical electronic amplifiers. The reason why the electronic amplifiers aren’t employed in electrocardiograph (ECG) is because they create an interference problem when they are used to measure small bioelectric potentials. A differential amplifier can be considered as two amplifiers having separate inputs but they…
-
The Essential Requirements of Biopotential Amplifiers for Medical applications
Biopotential amplifiers are also termed to as Bioamplifiers. Bioelectric measurements are normally low-level voltages with high source impedances therefore signal amplification is essential part of biomedical measurement systems. The signal amplification is needed to boost or increase the strength of the input signal to match the requirements of recording/display systems. We have specialized amplifiers designed…
-
Types of Amplifiers used in Biomedical Measurement Applications
Signal amplification is essential part of any biomedical measurement. Bioelectric measurements are usually low-level i.e. microvolt level measurements, therefore amplification is required to boost the level of the input signal to match the requirements of recording/display systems or to match the range of the analog-to-digital convertor, thus increasing the resolution and sensitivity of the measurement.…