Abstract
A convertor to adapt general-purpose or obsolete oscilloscopes for biopotential measurements has been designed. This device consists of complete vertical and horizontal circuits to drive directly cathode-ray-tube delection plates. Vertical sensitivity ranges from 0·1 to 10 mV/cm and sweep speeds from 0·5 s/cm to 0·1 ms/cm. The linear-sweep sawtooth waveform is generated by an analogue integrator, which is reset by a vertical or external-input trigger signal. The circuits use low-cost operational amplifiers for design simplicity.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 500-505 |
| Number of pages | 6 |
| Journal | Medical and biological engineering |
| Volume | 11 |
| Issue number | 4 |
| DOIs | |
| State | Published - Jul 1973 |
Keywords
- Oscilloscope
- biopotential
- differential amplifier
- sweep circuit
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