An Introduction to Biomedical Instrumentation |
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Page 45
... switch in series with its output , thereby open- circuiting it . An ideal constant current source has infinite internal resistance . Irrespective of the voltage required to maintain it , its current remains unchanged ; if open circuited ...
... switch in series with its output , thereby open- circuiting it . An ideal constant current source has infinite internal resistance . Irrespective of the voltage required to maintain it , its current remains unchanged ; if open circuited ...
Page 59
... switch closed and the ammeter reading zero ( region A , Fig . 7.2 ) . On opening the switch , a constant voltage is applied to the circuit and the ammeter reading is found to rise steadily ( region B , Fig . 7.2 ) . If allowed to ...
... switch closed and the ammeter reading zero ( region A , Fig . 7.2 ) . On opening the switch , a constant voltage is applied to the circuit and the ammeter reading is found to rise steadily ( region B , Fig . 7.2 ) . If allowed to ...
Page 144
... switch of Fig . 15.2 is replaced by a bipolar transistor . If the input terminal of this circuit ( pin 5 ) is held at +5 V , a base current of 50 μA flows into the transistor , which becomes a good conductor from collector to emitter ...
... switch of Fig . 15.2 is replaced by a bipolar transistor . If the input terminal of this circuit ( pin 5 ) is held at +5 V , a base current of 50 μA flows into the transistor , which becomes a good conductor from collector to emitter ...
Contents
CURRENT VOLTAGE AND RESISTANCE | 15 |
METERS | 22 |
THE POTENTIOMETER AND WHEATSTONE BRIDGE | 30 |
Copyright | |
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An Introduction to Biomedical Instrumentation: Pergamon International ... D. J. Dewhurst Limited preview - 2014 |
Common terms and phrases
active alternating amplifier applied arrangement base battery bridge capacitance capacitor carried cause Chapter charge circuit clear collector combination common complete conduct connected consists constant construction count curve deflection desired device difference diode direction discussed earth effect electrical electrons energy equipment falls field filter flip-flop flow follower frequency function FURTHER gain gate give heat inductor input known leads less light load logical material means measured meter moving multivibrator negative obtained occur ohms operation oscilloscope output output voltage pass patient peak phase plates positive possible potentiometer practice produce proportional pulse range reading recording rectifier regulator resistance resistor reverse rise seen shown in Fig shows signal simple solution suitable supply switch Table temperature terminal transfer transformer transistor trigger tube turn typical unit usually voltage wire zero