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  • AN117 Basic Bridge Circuits
    Bridge circuits have been in use for well over 150 years. To date, the bridge is still the most economical circuit technique for accurately measuring resistance. The original bridge circuit topology has had many unique modifications and has been applied to applications such as AC measurements

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  • THE LOWER PARTS OF THE UTERUS DURING THE FIRST STAGE OF LABOUR IN OCCIPITO ? ANTERIOR VERTEX PRESENTATION
    The apparatus consists of a sine wave oscillator, a pair of strain gauges, forming a part of an AC bridge amplifier and a demodulator, connected via a low-pass filter to the output stages of an Elema-Jarnh .
  • A study of experimental acute lung injury in pigs on zero end?expiratory pressure
    The _V, volume, Pes and Pao signals were amplified ( AC bridge amplifier - ABC module; Raytech Instruments, Vancouver, BC, Canada), low-pass filtered at 50 Hz, sent to a 16-bit analog-to-digital converter (Direc Physiologic Recording system; Raytech Instruments .
  • Respiratory mechanics during and after anaesthesia for major vascular surgery
    The flow and pressure signals were amplified ( AC Bridge Amplifier -ACB module; Raytech Instruments), low-pass filtered at 50 Hz and digi- tised at 100 Hz by a 16-bit analog-to-digital converter (Direc Physiologic Recording System; Raytec Instru- ments).
  • Neurophysiological Techniques
    Saline-filled transducers are driven with an AC bridge ampli- fier (e.g., Bak Electronics ABI-l), typically at a frequency of 25-35 kHz (chosen to be outside the bandpass of interest for neuro- muscular signals).
  • Quantitative analysis of acoustic emission during martensitic transformation of the ?-CuZnAl alloy
    The slowly built-up force was measured by a force transducer and AC bridge amplifier while the signal generated due to therapid releaseof force due to the fracture was recorded by a digital oscilloscope.
  • CHEST Journal | Article
    Flow and pressure signals were amplified ( AC Bridge Amplifier -ACB module; Raytech Instruments), filtered (low-pass) at 50 Hz, and digitized at 100 Hz by a 16-bit analog-to-digital converter (Direc Physiologic Recording System; Raytec Instruments).
  • CHEST Journal | Article
    The pressure, volume, and flow signals were amplified ( AC Bridge amplifier -ACB module; Raytech Instruments), low-pass filtered at 50 Hz, and digitized at 100 Hz by a 16-bit analog-to-digital converter (Direc Physiologic Recording System; Raytech Instruments).
  • CHEST Journal | Article
    The airflow, volume, and Pao signals were amplified ( AC bridge amplifier , ABC module; Raytech Instruments; Vancouver, BC, Canada), low-pass filtered at 50 Hz, sent to a 16-bit analog-to-digital converter (Direc Physiologic Recording system; Raytech Instruments) installed on a �
  • CHEST Journal | Article
    The volume and Pao signals were amplified ( AC Bridge Amplifier -ABC module; Raytech Instruments), were filtered through a low-pass filter at 50 Hz, were sent to a 16-bit A/d converter (Direc Physiologic Recording System; Raytech Instruments) connected to a personal �
  • CHEST Journal | Article
    The flow and pressure signals were amplified ( AC bridge Amplifier -ABC module; Raytech Instruments), filtered through a low-pass filter at 50 Hz, sent to an A/D converter (Direc Physiologic Recording System; Raytech Instruments) connected to a personal computer, and sampled at �
  • Respiratory Research | Full text | Upper airway dynamics during negative expiratory pressure in apneic and non-apneic awake snorers
    The flow and pressure signals were amplified ( AC bridge Amplifier -ABC module; Raytech Instruments), filtered through a low-pass filter at 50 Hz, sent to an A/D converter (Direc Physiologic Recording System; Raytech Instruments) connected to an IBM personal computer and sampled �