- Removes cardiac artifact from diaphragm EMG signals
- Uses embedded artifact or external ECG signal for triggering
- Outputs include rectified signal, processed signal
- Measures Heart Rate from embedded artifact
Input range (EMG or EKG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +10V P-P
Heart rate measurement range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 300 bpm
Respiratory rate measurement range . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 4 - 100 breath/min
Measurement resolution (HR or RR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1 bpm
AMP OUT range (bipolar) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1.5V P-P (nominal)
OUT range (full-wave rectified) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 - 1.5V P-P (nominal)
DELAY TIME range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 - 150mS
BLANK TIME range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 - 150mS
SYNC OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TTL positive
Input / output connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . BNC jack
Power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V@100mA
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 9.3W x 2.5H x 8.0D inches (23.6 x 6.4 x 20.3 cm)
The SB-1 EKG Blanker is a unique instrument for reducing the cardiac artifact in respiratory muscle recordings, especially the diaphragm EMG. Its many advanced features make it easy to set up and operate. The instrument accepts an amplified EMG signal as its input and, optionally, an amplified EKG signal. Outputs include a standardized-amplitude version of the input signal (AMP OUT), a processed and full-wave rectified signal (OUT), and a SYNC OUT logic signal corresponding to the EKG Rwave.
