Podcast
Questions and Answers
The static characteristics of a sensor refer to its properties when steady state conditions occur.
The static characteristics of a sensor refer to its properties when steady state conditions occur.
True
Hysteresis and backlash are part of the dynamic characteristics of a sensor.
Hysteresis and backlash are part of the dynamic characteristics of a sensor.
True
Resolution refers to the difference between the maximum and minimum value of the sensed parameter.
Resolution refers to the difference between the maximum and minimum value of the sensed parameter.
False
Accuracy is the ability to reproduce measurements repeatedly with a given precision.
Accuracy is the ability to reproduce measurements repeatedly with a given precision.
Signup and view all the answers
The response time of a sensor is the time lag between the input and output.
The response time of a sensor is the time lag between the input and output.
Signup and view all the answers
Resonance is defined as the frequency at which the output magnitude peak occurs.
Resonance is defined as the frequency at which the output magnitude peak occurs.
Signup and view all the answers
Deadband represents the range of input for which there is no output from the sensor.
Deadband represents the range of input for which there is no output from the sensor.
Signup and view all the answers
Signal-to-noise ratio is the ratio of change in output to a unit change of the input.
Signal-to-noise ratio is the ratio of change in output to a unit change of the input.
Signup and view all the answers
Sensitivity is defined as the operating temperature range in which a sensor performs as specified.
Sensitivity is defined as the operating temperature range in which a sensor performs as specified.
Signup and view all the answers
Dynamic characteristics describe a sensor's behavior when it has settled down after receiving some input.
Dynamic characteristics describe a sensor's behavior when it has settled down after receiving some input.
Signup and view all the answers
Sensitivity is a measure of the change in instrument output that occurs when the quantity being measured changes by a given amount.
Sensitivity is a measure of the change in instrument output that occurs when the quantity being measured changes by a given amount.
Signup and view all the answers
The accuracy of a sensor is directly proportional to error, i.e., a highly accurate sensor produces high errors.
The accuracy of a sensor is directly proportional to error, i.e., a highly accurate sensor produces high errors.
Signup and view all the answers
Bias errors can be detected or removed by statistical means.
Bias errors can be detected or removed by statistical means.
Signup and view all the answers
Repeatability refers to the precision of a set of measurements taken over a long time interval.
Repeatability refers to the precision of a set of measurements taken over a long time interval.
Signup and view all the answers
Precision implies agreement between successive readings and closeness to the true value.
Precision implies agreement between successive readings and closeness to the true value.
Signup and view all the answers
The sensitivity of an analog sensor is related to the resolution.
The sensitivity of an analog sensor is related to the resolution.
Signup and view all the answers
Loading errors occur due to changes in the sensor output when the input is zero.
Loading errors occur due to changes in the sensor output when the input is zero.
Signup and view all the answers
Precision is the capacity of a measuring instrument to give different readings when repetitively measuring the same quantity under the same prescribed conditions.
Precision is the capacity of a measuring instrument to give different readings when repetitively measuring the same quantity under the same prescribed conditions.
Signup and view all the answers
The accuracy of an instrument depends on its inherent limitations.
The accuracy of an instrument depends on its inherent limitations.
Signup and view all the answers
Error is defined as the difference between a measured value and an estimated value.
Error is defined as the difference between a measured value and an estimated value.
Signup and view all the answers
Hysteresis and backlash are considered static characteristics of a sensor.
Hysteresis and backlash are considered static characteristics of a sensor.
Signup and view all the answers
The resolution of a sensor refers to the smallest change the sensor can differentiate.
The resolution of a sensor refers to the smallest change the sensor can differentiate.
Signup and view all the answers
Deadband represents the range of input for which there is no output from the sensor.
Deadband represents the range of input for which there is no output from the sensor.
Signup and view all the answers
Loading errors occur due to changes in the sensor output when the input is zero.
Loading errors occur due to changes in the sensor output when the input is zero.
Signup and view all the answers
The accuracy of a sensor is directly proportional to error, i.e., a highly accurate sensor produces high errors.
The accuracy of a sensor is directly proportional to error, i.e., a highly accurate sensor produces high errors.
Signup and view all the answers
Sensitivity is defined as the operating temperature range in which a sensor performs as specified.
Sensitivity is defined as the operating temperature range in which a sensor performs as specified.
Signup and view all the answers
Error is defined as the difference between a measured value and an estimated value.
Error is defined as the difference between a measured value and an estimated value.
Signup and view all the answers
The sensitivity of an analog sensor is related to the resolution.
The sensitivity of an analog sensor is related to the resolution.
Signup and view all the answers
The response time of a sensor is the time lag between the input and output.
The response time of a sensor is the time lag between the input and output.
Signup and view all the answers
Sensitivity, offset & bias, span & dynamic range, saturation & dead zone, hysteresis & backlash, and nonlinearity are all considered static characteristics of a sensor.
Sensitivity, offset & bias, span & dynamic range, saturation & dead zone, hysteresis & backlash, and nonlinearity are all considered static characteristics of a sensor.
Signup and view all the answers
Accuracy is a measure of the difference between the measured value and actual value.
Accuracy is a measure of the difference between the measured value and actual value.
Signup and view all the answers
Sensitivity is the ability of the measuring instrument to respond to changes in the measured quantity.
Sensitivity is the ability of the measuring instrument to respond to changes in the measured quantity.
Signup and view all the answers
Precision implies agreement between successive readings, NOT closeness to the true value.
Precision implies agreement between successive readings, NOT closeness to the true value.
Signup and view all the answers
The sensitivity of an analog sensor is the slope of the output versus input line.
The sensitivity of an analog sensor is the slope of the output versus input line.
Signup and view all the answers
Bias errors can be detected or removed by statistical means.
Bias errors can be detected or removed by statistical means.
Signup and view all the answers
Repeatability refers to the precision of a set of measurements taken over a short time interval.
Repeatability refers to the precision of a set of measurements taken over a short time interval.
Signup and view all the answers
Loading errors occur due to changes in the sensor output when the input is zero.
Loading errors occur due to changes in the sensor output when the input is zero.
Signup and view all the answers
Dynamic characteristics describe a sensor's behavior when it has settled down after receiving some input.
Dynamic characteristics describe a sensor's behavior when it has settled down after receiving some input.
Signup and view all the answers
The response time of a sensor is the time lag between the input and output.
The response time of a sensor is the time lag between the input and output.
Signup and view all the answers
Resolution refers to the difference between the maximum and minimum value of the sensed parameter.
Resolution refers to the difference between the maximum and minimum value of the sensed parameter.
Signup and view all the answers
Study Notes
Static Characteristics of a Sensor
- Hysteresis and backlash are not part of the static characteristics of a sensor.
- Sensitivity, offset & bias, span & dynamic range, saturation & dead zone, hysteresis & backlash, and nonlinearity are not considered static characteristics of a sensor.
- Accuracy is a measure of the difference between the measured value and actual value.
- Resolution refers to the smallest change the sensor can differentiate.
- Deadband represents the range of input for which there is no output from the sensor.
- Loading errors occur due to changes in the sensor output when the input is zero.
Dynamic Characteristics of a Sensor
- Hysteresis and backlash are part of the dynamic characteristics of a sensor.
- Dynamic characteristics describe a sensor's behavior when it has settled down after receiving some input.
- Response time of a sensor is the time lag between the input and output.
- Resonance is defined as the frequency at which the output magnitude peak occurs.
Sensor Performance
- Accuracy is the ability to reproduce measurements repeatedly with a given precision.
- Precision implies agreement between successive readings.
- Repeatability refers to the precision of a set of measurements taken over a long time interval.
- Error is defined as the difference between a measured value and an estimated value.
- Bias errors can be detected or removed by statistical means.
- Sensitivity is a measure of the change in instrument output that occurs when the quantity being measured changes by a given amount.
- The sensitivity of an analog sensor is related to the resolution and is the slope of the output versus input line.
- Signal-to-noise ratio is the ratio of change in output to a unit change of the input.
- A highly accurate sensor does not produce high errors.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your understanding of sensor's characteristics with a focus on static and dynamic properties, sensitivity, offset & bias, span & dynamic range, saturation & dead zone, hysteresis & backlash, and nonlinearity. This quiz is based on Chapter 2 of 'Sensors and Instrumentations' by Dr. Galal A. M. Atlam.