Transducer Amplifier Modules for Physiology Lab

The Transducer Amplifier Modules are universal DC bridge amplifiers designed to amplify physiological signals such as pulsatile and constant blood pressure, respiratory airflow, airway pressure, contraction force, and contraction displacement. They are suitable for transducers based on resistive Wheatstone bridge technology and can also accept transducers with built-in preamplifiers providing high-level DC output voltage. The analog version features an LED bar graph for monitoring dynamic signals, while the digital version provides a numeric display for slowly changing and low-pulsatile signals. Manufactured by Atico Export with a focus on precision, durability and consistent performance for physiological research and experimental laboratory use.

• Pulsatile blood pressure measurement
• Constant blood pressure measurement
• Respiratory airflow measurement
• Airway pressure measurement
• Respiratory pressure measurement
• Contraction force measurement
• Contraction displacement measurement
• Isometric contraction studies
• Isotonic contraction studies
• Intracranial pressure measurement
• Venous blood pressure measurement
• Constant pressure perfusion applications

Analog Version :

• LED bar graph signal indicator with 20 LEDs (+13/-7)
• Suitable for monitoring dynamic and pulsatile signals
• Signal sensitivity approximately 1 V/LED

Digital Version :

• 3 1/2-digit LED numeric display
• Suitable for slowly changing and low-pulsatile signals

Bridge Balance :

• 10-turn trimmer for coarse adjustment
• Electronic autozero through push button
• LED error indication if autozero is not possible

Bridge Supply Voltage :

• +5 V / 50 mA maximum

Electrical Calibration :

• Selectable using front-panel switch
• 0 V output signal with switch in position "0"
• Positive or negative calibration output voltage adjustable with 10-turn trimmer in "CAL" position

Gain :

• Selectable ranges:
  • 0.2 to 10
  • 0.4 to 20
  • 1 to 50
  • 2 to 100
  • 4 to 200
  • 10 to 500
  • 20 to 1000
  • 100 to 5000
  • 200 to 10000
• Fine adjustment through 10-turn trimmer

Output Low-Pass Filter :

• Pulsatile output signal: 1, 100, 300 Hz
• Mean output signal: 0.1, 0.3 Hz
• Pulsatile settings selectable by front-panel switch
• Mean signal settings selectable by internal jumper

Transducer Input :

• 6-pin socket with screw lock
• Differential input circuit
• Input impedance as specified by the source

Signal Output :

• Front-panel BNC socket

Power Supply :

• +5 V through connector from the modular system bus

Module Width :

• 2 slot units

Recommended Transducer Types :

• Arterial blood pressure transducers
• Intracardial left ventricular pressure transducers
• Venous blood pressure transducers
• Respiratory airflow transducers
• Tracheal pressure transducers
• Respiratory pressure transducers
• Isometric force transducers
• Displacement transducers

• Universal DC bridge amplifier
• Suitable for physiological signal amplification
• Supports resistive Wheatstone bridge transducers
• Compatible with transducers having built-in preamplifiers and high-level DC output
• Analog LED bar graph indication for dynamic signals
• Digital numeric display for slowly changing signals
• Electronic autozero function
• Adjustable bridge balance
• Multiple selectable gain ranges
• Fine gain adjustment using a 10-turn trimmer
• Selectable output low-pass filter settings
• Electrical calibration function
• Differential transducer input
• Front-panel BNC signal output
• Suitable for pressure, airflow, force, and displacement measurements