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Ultrasonic Transducers, Ultrasonic Transducer by Parsonics. Transducers- definition,types,passive and active transducer. Speech Recognition Transducers. Devices: Analog Dialogue: Transducer/Sensor Excitation and Measurement Techniques. Volume 34, Number 5, August-September, 2000 Download this article in PDF format. (105,696 bytes) Transducer/Sensor Excitation and Measurement Techniquesby Albert O'Grady INTRODUCTION Input transducers, or sensors are classified as either active or passive.

Devices: Analog Dialogue: Transducer/Sensor Excitation and Measurement Techniques

Passive sensors, such as thermocouples or photodiodes (in the voltage-output mode) are two-port devices that transform physical energy to electrical energy directly, generating output signals without the need for an excitation source. Active sensors (like active circuits in general) require an external source of excitation. Transducer Research Foundation.

Transducer Components

Transducer. A transducer is a device that converts a signal in one form of energy to another form of energy.[1] Energy types include (but are not limited to) electrical, mechanical, electromagnetic (including light), chemical, acoustic and thermal energy.

Transducer

While the term transducer commonly implies the use of a sensor/detector, any device which converts energy can be considered a transducer. Transducers are widely used in measuring instruments. An actuator accepts energy and produces movement (action). The energy supplied to an actuator might be electrical or mechanical (pneumatic, hydraulic, etc.). An electric motor and a loudspeaker are both actuators, converting electrical energy into motion for different purposes. What Are Transducers? - mobile wiseGEEK. Sensor tutorials - DHT11/DHT21/DHT22 low cost temperature/humidity sensors. Transducers. What is transducer? - Definition from Whatis.com. Transducer Guide.