thermistor is one of the example for thermoelectric transducer and we can say this is the worst topic of the instrumentation . its better to not study.............................................................................................................
electrical energy to mechanical form
Nextreme eTEG HV Thermoelectric Power Generators are the next generation of high voltage, thinfilm thermoelectric generators developed to address micro-power applications. The Nextreme eTEG HV Thermoelectric Power Generators can convert waste heat from thermal sources into usable electricity as an energy source. Manufactured using semiconductor fabrication techniques, the eTEG is scalable, cost-effective, and can be utilized in a broad range of markets and applications including automotive, government and aerospace, thermal batteries, medical implants, and wireless sensor networks.
A diaphragm will be found in both a microphone, and a speaker; both being transducers across electrical to air pressure.
three types relative humidity, absolute humidity, specific humidity. The detecor transducers generally consist of two capacitor plates enrgised by an alternating signal. The water vapour in the air changes the dielectric between the plates and alters the frequency of the capacitor network. Thus humidiy is changed to a varying frequency which can be counted and displayed digially.
Such type of transducer which can covert bio energy into any other form like mechanical or electrical. Example are engine or crystal. Engine convert energy from bio-fossil fuels to mechanical and crystal like tourmaline into electrical oscillations.
Curium is not used in thermoelectric generators.
Transducers are often used in the medical industry with an ultrasound machine. GE Healthcare as well as Fairchild both carry transducers for these types of machines.
The mechanical transducers are the mechanical elements that are used for converting one form of energy into other form that can be measured easily. Electrical transducers may be classified as active or passive. The active transducers generate electric current or voltage directly in response to stimulation
G. A. Woolvet has written: 'Transducers in digital systems' -- subject(s): Digital control systems, Transducers 'Transducers in Digital Systems (IEEE Control Engineering Series; No. 3)'
Passive transducers are the transducers which requires an external power supply to operate and the output is a measure of some variation in passive components. Example- Differential transformers, Resistance strain gauge etc..
Sensors are transducers basically convert non electrical quantity to electrical quantity. Sensor may be classified as Piezoelectric sensors Thermoelectric Sensors Capacitive Sensors Inductive Sensors etc. Sensor can not produce adequate level of power so they can directly fed to amplifier hence need a processing amplifier.
TRANSDUCER is a device converts one form of energy into other forms sensor it is device any form into electrical form my point of view ,all the sensors are transducers ,but all the transducers are not sensors
Passive transducers are the transducers which requires an external power supply to operate and the output is a measure of some variation in passive.
Thermal senser
transducers
position sensor (transducers)
electrical energy to mechanical form