Questions tagged [sensitivity]
The sensitivity (or responsivity) of an electronic device or system, such as transistors, amplifiers, communications systems, represents the minimum magnitude of an input signal needed in order to provoke an output signal.
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Measure sensitivity of ADC
I would like to benchmark my ADC.
I can calculate a sensitivity value based on the information in the datasheet. However, I would like to measure/benchmark this figure.
Is there a standard method ...
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Estimating the adequate ADC resolution given a sensor resolution
A force traducer has a resolution of 0.0625N. And the analog output sensitivity is 32N/V. So I calculate the voltage output resolution as 0.0625/32 which is around 2mV.
If this signal now is sampled ...
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Noise figure of Microwave radio receiver
I always wondered why ADC is not considered for noise figure measurement in receiver chain? Do ADCs will not have much impact on noise figure in signal processing?
How to derive a Noise figure spec ...
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What is "Vop" sensitivity unit?
I am studying the datasheet of an ultrasonic transducer (Murata MA58MF14). I understand the maximum input voltage unit (voltage peak-to-peak), but I do not understand what exactly the sensitivity unit ...
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Understanding digital MEMS microphone sensitivity and obtained bits for a given input SPL
I'm trying to understand /simulate the communication between 2 smartphones by means of ultrasounds. As this is a general study I'm considering that the smartphones are equipped with the "typical" most ...
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Evaluating 741 op amp sensitivity to loading in non-inverting and summing op amp circuits
I am doing lab preparation but I am not sure how to evaluate 741 amplifier sensitivity to loading based on my non-inverting circuit with a gain of 21 and my summing circuit with a gain of 55.
I know ...
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Relation between bandwidth, response time and disturbance rejection for a control system
I read the following line in a control system book:
Higher bandwidth corresponds to better command following, disturbance rejection and sensitivity to parametric variations. On the other hand, ...
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Reading a transducer sensitivity from its datasheet
How can I calculate the sensitivity of this transducer? I also read at a text "The sensitivity is typically rated in terms of mV/g or pC/g, it is valid only at one frequency, conventionally at 100 Hz."...
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Best microphone picking up sound within a small room?
I've tried several Electret Condenser Microphones as input to a generic USB audio sound card:
MO064202-4
MO064402-4
MO064402-5
All mics work great at close range (about 1 or 2 inches). However, none ...
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nRF24L01+ module channel sensitivity and directivity
I want to start a project where I distribute many nRF24L01+ modules across the house. I am pretty sure someone has done that before. But before I wanted to begin I evaluated the modules using two ...
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Characterization of RF Amplifier Chain
I am using a 3 Amplifiers chain for a Receiver system.
The required Output is -32dBm while the sensitivity of the system is -55 dBm,
I am able to achieve this.
But the maximum I/P power for the ...
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Receiver Sensitivity
Receiver has noise figure 4 dB and ENBW 3.6 MHz. Used with antenna with noise temperature 200 K. Demodulator needs S/N of at least 13 dB. What is the receiver sensitivity? Give your answer in dBm, ...
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How to compute the sensitivity of this control system?
I am learning control systems on my own and am having some trouble understanding how Richard C. Dorf and Robert H. Bishop found \$S^{T}_{G}\$ in Modern Control Systems (12th edition):
The problem:
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Why radio exhibits better sensitivity with a wider deviation when Rx bandwidth remains constant
I used an RF generator transmitting FSK packets with a datarate of 50 kbps. The deviation was 12.5 kHz. With this combination of datarate and deviation the modulation index is 0.5. I found that my ...
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IC's sensitivity
I'm trying to make an AM receiver using a certain IC (it's Samsung KA22427C, if you ask). I found a datasheet and in AM section of electrical characteristics there is entry for maximum sensitivity ...
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What's the difference between sensitivity and resolution of an SMU?
In Keithley's Low Level Measurements Handbook, 7th ed the two terms are defined as:
SENSITIVITY - the smallest change in the signal that can be
detected.
RESOLUTION - the smallest portion of ...
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Forensics: electrostatic detection circuit for lifting "indentations" from documents
Wikipedia explains that an EDD:
...is a specialized piece of equipment [used to] reveal indentations
or impressions in paper which may otherwise go unnoticed. The
electro-physical basis whereby ...
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Lowering the output of high amp current sensor for low amp use - good or bad?
By increasing the value of burden resistor or turning the wire several times around the CT an output can be increased. But is it a good practise to lower the high current non-invasive current sensor ...
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Vacuum dessication of MSL components?
The standard method of removing moisture from MSL-sensitive SMD components prior to reflow is to bake in an oven for 12 hours or more. Without baking, there is a possibility of popcorning, as the ...
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minimum detectable signal of an IMU (MPU 6050)
I want to work with the MPU 6050 IMU, but before I have to check, which minimum detectable signal the IMU can measure or rather what is the lowest change of angle the IMU can measures.
I have the ...
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US5881 Hall Effect sensor not detecting AC field
Yesterday I was disappointed to learn there is no magical IC to measure current flow in a standard appliance cord.
On the advice I received, I went ahead with a US5881 Hall effect sensor and split ...
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Normalize values from different MEMS 3-axis accelerometers
I have to find a solution to uniform values on 3-axis accelerometers on different android devices. I mean, a device with a specific accelerometer, subjected to the same acceleration, return values, ...
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EDIT: Dropping voltage of high frequency signal using diodes
I have a high frequency analog signal that has to be as noiseless as possible, say no ripple of a few millivolts? Now, I need to bring it down by almost 9V.
Is it reasonable to simply use a zener or ...
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Maximum achievable SNR (SNR before LNA)
I am trying to understand the concept of noise figure and the best achievable SNR.
The noise figure is a measure how much a device degrades the SNR. Say I have a receiver with a NF of 16dB, then the ...
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Why is my piezo so innacurate? Is it just insensitive? [closed]
I'm trying to make a sound level display, simply to tell the user how loud nearby sounds are. The issue is this data, which I collected in a near silent environment (it's night, and I can't make out ...
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Sensitive or not sensitive gate? [closed]
If there is nothing about it in the datasheet, how can I find out if it is a sensitive or not sensitive gate?
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Maximum sensitivity of a wheatstone bridge [closed]
Four strain gages are placed on an elastic element in order to measure axial force and moment. Assume that element cross-section is square with area, A = h2 . The strain gages all have the same ...
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How does a consumer microphone achieve a sensitivity of -20 dB?
How does a consumer microphone achieve a sensitivity of -20 dB (Edutige EIM-001), when one of the best industrial electret microphones I could find (Primo EM158) has a sensitivity of only -32dB (1 kHz ...
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Image Sensor sensitivity
I am not sure what really the term "sensitivity" means when characterizing image sensors, so I will describe what I am looking for in the sensor at the following conditions:
the exposure time is very ...
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Understanding optical parameters of image sensors
I noticed that image sensor manufacturers provide some optical characteristics in different formats. I wish to know how to interpret that information.
Sensitivity is characterized in \$\dfrac{V}{lx \...
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BeagleBone Black - power supply sensitivity
I've bought a AC/DC adapter which per its specifications should output 5VDC and deliver 3A. I was going to use this adapter to power my BeagleBone Black (BBB) with. However, when I'm measuring the ...
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Compare optical Sensitivity of two sensors
I have two different sensors. Both have 16-bits ADC, both operate at Vdd = 3V, but their dynamic range is different. One has dynamic range of 50M:1 with gain range of x8 and the other has 500k:1 with ...
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Washing PCB for picoamp circuitry
I am possibly getting a problem with variation in performance between batches of boards that contain one area which is very current sensitive (to sub nanoamp). Could it be due to manufacturing residue ...
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