Equipments Supplied
w Set of ECG electrodes and straps along with 5 terminal
connector between the leads and ECG box
w Laboratory manual
w Biomedical disposal Accessories Package
Module Capability
· How the muscle recording affects the recording
· Effect of respiration on pulse rate
· Effect of poor electrode connection on a lead II recording
· Measuring the distance in millimeters between two adjacent
R waves of a lead II tracing.
· Comparing leads I, Ii, III for differences in amplitude and
periods between pulses
· Analyzing P-Q-R-S-T waves
· Many more capabilities
Features
· Has differential Amplifier:
- Common Mode Rejection Ratio (CMRR): 80 dB
- Gain: 120 dB
- Sensitivity to 5 mV
- Frequency Response: DC to approximately 1 KHz
· For protection against line power, safety devices has been
incorporated which limits the input voltage.
· Control Switches for varying roll off frequencies and amplifier
gain
· Optocoupler isolates the front end amplifier and reference
ground from earth ground circuitry
· Selectable notch filter which allows 50Hz/60Hz filtering.
· Isolated Power Supplies to isolate the front end amplifier from
the common earth ground supply (provides an additional
margin of safety)
· Polarity Correction Circuitry enables the R wave to be either
positive or negative; the output is always a positive signal
· Pulse Stretching Circuit uses the R wave as the signal and
converts it into a rectangular pulse
· Tone Generator produces the tone whose on period iscontrolled by the Pulse Stretcher Circuit
· Converts the pulse stretched signal into a DC level for the 1
mA meter
· Lead selector switch for selecting lead 1, lead 2, lead 3,
during ECG measurement.
· Calibration 1mV facility
· Various instrumentation circuits can be individually tested
which are fully explained in laboratory manual like Differential
Amplifier, Opto Electronic components, Notch filters etc.
The VPL-BIO-ECG module is a versatile instrument which is
specially designed to perform laboratory experiments and
demonstration on ECG. The module can record the low-level
voltages produced by the heart which is attached to the human
limbs and chest.
The system uses various basic instrumentation and monitoring
circuits. The user can analyze the signals at different sections
of circuitry using oscilloscope or PC recorder. Also, an optional
ECG Simulation module provides direct simulation of human heart