Hello, friends, I hope you all are doing great. In today’s tutorial, we will discuss the Difference Between Sensor & Transducer. The basic difference between sensor and the transducer is that the sensor detects the variation in the physical parameters of the environment while the transducer transforms the physical parameter or nonelectrical quantities into the electrical signal. Both of these are physical instruments used in different electrical devices to measure physical quantities.
The operation of the sensor is that it sens the level of energy and transforms in an electrical signal that can be calculated with the digital meter. But the transducer varies the energy from one form to another. In today’s post, we will have a detailed look at both the transducer and sensor with a detailed compare them to find their differences. So let’s get started with the Difference Between Sensor & Transducer.
Difference Between Sensor & Transducer
Sensor
- It is such a device that is used to detect the variation occurring in the system and send to the main device which can be a computer.
- It needed certain types of devices to operate on
- Its practical installation is in lifts of shopping malls’ lamps operation.
- It used in different modern application due to advancement in the field of controller that helps to make its use in different aspect practical example of a modern senor is MARG
- There is still the use of potentiometer and resistance to control the analog sensors
- The device used to explain the composition of different chemical substances like gases, fluids are called a chemical sensor
- The chemical sensor tells the quantity of material in the form of signal and then converted in the values
- 2 main processes work for chemical sensors first one is recognition and transduction
- The device that is used to send the biological behavior is called biomedicine
- Its basic function is to sense the variation in the parameter and transform in the resultant signal.
- An example of a sensor is a proximity sensors, Magnetic sensors, Accelerometer sensors, Light sensors, etc.
Transducer
- Any type of instrument that is used to transform any category of energy in another type of energy is called a traducer.
- It is used to transform signals from one or another type.
- Its common use in different fields of life like automobiles, controlling of the different systems her electrical signal is mostly used to conversion in different parameters.
- The phenomenon that helps the transducer to convert signals from one to other types is called transduction
- The main elements of the transducer are sensor and signal conditioning.
- Its main function is the transformation of one type of energy to another.
- Examples of transducers are thermistors, potentiometers, and thermocouples.
Transducer Features
- It is the ratio between the highest value of the signal and the low value of the signal measured from the transducer called dynamic range having high this range shows good sensitivity.
- It comes feature to generate a single signal more than one time.
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- The thermocouple also transforms the temperature measured with the thermometer in the voltage.
Sensor Applications
- These are some applications of sensors.
- To provide protection to the home motion sensors are used with that automation door system is used.
- Photosensor is used for the detection of infrared and ultraviolet light.
- For the detection of screen rotations, the accelerometer is used.
Sensor vs Transducer
- The sensor is an instrument that detects changes in the physical environment and the transducer converts one type of energy into another type of energy.
- The transducer consists of the sensor as a component and the sensor does not have any transducer
- The sensor is a half element and the transducer is created through a combination of sensor and signal circuits
- Sensor transform physical quantities into a non- electrical signal and transducer converted physical energy into electrical
- The sensor needs extra circuitry to convert its output signal into a readable form and the transducer does not need any extra processing circuit.
- The output of the sensor is analog and the transducer generated analog and digital output
- The putout of the sensor cannot be given to any other system directly but the output of the transducer can be given to any other system directly
- The sensor does not need any outer power supply to work and the passive transducer needs an outer power source for operation
- The sensor is not bidirectional and the transducer is a bidirectional device
- The sensor is a simple circuit device and the transducer is complicated
- Examples of sensors are thermometers, pressure, sensor, and tight sensor and example of transducers are thermistors, potentiometers, and Hall effect transducers
Sensor vs Transducer
| Sensor | Transducer |
|---|---|
| It converts physical phenomena into an electrical signal. | it transforms one kind of energy into another type of energy |
| It is used for the measurement of numerous physical quantities like pressure, temperature, etc | it uses for conversion from one energy type to another like electrical to mechanical |
| Normally integrated in a system or device for monitoring and control of certain physical parameters | it is a standalone device which are connected to a large system or devices |
| it comes with a measurable output signal in the results to certain inputs | it transforms physical quantities in features and electrical output signal |
| It can be an active or passive module | it is normally active devices |
| Common examples are temperature sensors, pressure sensors, light sensors, etc. | its main examples are thermocouples, strain gauges, , piezoelectric sensors, etc. |
| is desing and structure is simple and easy | its structure is construction and design |
| it often relies on the physical properties of materials for example resistance, capacitance, inductance, etc. | it is mostly based on electromechanical or electro-optical principles |
| it can need extra signal conditioning or amplification | it needs additional signal conditioning or amplification |
| it is employed in different industries for example automotive, aerospace, medical, consumer electronics, etc. | it is used in industries like energy, automation, instrumentation, etc. |
| its size is small | it can be varied in size on the basis of applications |
| it is an example of sensor technology like infrared, ultrasonic, optical, magnetic, etc. | Common examples of transducer technology are speakers, microphones, motors, etc. |
| its output signal can be analog or digital | its output signal can be analog or digital |
| it can be employed in closed-control systems | It used in open-loop control systems |
| it measures the certain physical parameters | it transforms one type of energy n another without measuring any specific physical parameter |
| Mostly used in combination with other sensors or transducers | it is used with sensors or transducers |
| it can be employed in differnt types of measurement applications | it is used in numerous categories of measurement and control applications |
| it needs calibration to make sure accurate readings | it needs calibration to get the accurate output |
| it needed certain installation or mounting | it need certain mounting considerations |
| it used in many scientific and engineering applications | It employed in many scientific and engineering applications |
FAQs
What is the classification of a transducer?
- These are classifications of the transducer
- The primary and secondary transducer
- Transducers and inverse transducers
- Active and passive transducer
- Analog and digital transducer
How to calculate the sensitivity of the transducer?
- To find the sensitivity of the transducer divide the range of the transducer to the full range output
Main different types of sensors?
- Speed sensor
- Temperature sensor
- Ultrasonic sensor
- Pyroelectric sensor
What type of sensor is a transducer?
- Input transducers make a voltage or signal output response that is proportional to the change in the quantity that they measure. The category of output single depends on the category of the transducer
That is a detailed post about the difference between a sensor and a transducer If you have any queries ask in the comments. Thanks for reading have a good day.
