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Rogers Corp has a good paper on this. Keep in mind any answer has many assumptions (temperature, copper thickness, etc). GE
Direct temperature and pressure controller Hope it is helpful to you
Prolonged exposure to direct sunlight can certainly permanently degraded several components of the LCD, including the polarizing filter and clouding of some layers. LCDs are also very susceptible to changes in temperature, especially to prolonged exposure to high temperatures found in direct sunlight. Such prolonged exposures to high (...)
Hi, we can not answer this. IF input signal is DC it NEVER changes. But im sure it does. And you have to decide what changes in value up to what frequency you want to see, and what frequency makes no sense. You could either decide in frequency or timeconstant. If you want to measure room temperature you maybe want to see changes with a time c
Hello, As a part of my project I would like to be able to know the temperature inside a water tank. This project has some limitations: 1. Distance (sensor will be 2-15 meters away from the controller) 2. Sensor wire will have to pass next to power cable (220-240Vac 50/60Hz). 3. Sensor will be immerse into media (water) 4. temperature range 0-1
NPO (Negative-Positive-Zero) refers to the capacitor's ability to avoid a change in value with temperature. Silver mica capacitors have low resistive and inductive losses (high Q-factor), and also their properties are pretty independent from frequency. So, silver mica capacitors are better for filter design, when both, NPO capacitors and silver m
At first Fn ( or T, equivalent noise temperature ) and linearity. Linearity that is input P1 IP3 and as function FEM dynamic range. Mirror channel selectivity if necessary performances of the preselector filter. And third all kind in and out unwanted channels and emissions. It is very briefly.
So you need a noise rejection filter and you have a sampling rate which has a maximal signal bandwidth that can exceed the Shannon sampling theorem rate. But you are only interested in real-time rate changes of temperature but know that phase shift with filtering causes time delay or group delay. Can you model a
Hello, I am working on a project to construct a low cost Radio Interferometer with a student organization at my university. Our plan is to construct several nodes of antennae, where each node is be responsible for controlling a group of antennae (point position, amplifier temperature, amplifier gain, filter selection, LO frequency, etc.) as well
I read this somewhere and saved it. How to implement a simple single pole digital filter. It works great and I now use it all the time. Many systems use an ADC to sample analog data that temperature and pressure sensors produce. Sometimes, system noise or other factors cause the otherwise slowly fluctuating data to "jump around." To r
Ceramic capacitors are cheap and nasty, they have a wide tolerance, bad temperature coefficient but are cheap and have low self inductance so they are suitable for very high frequencies. Frank
In practice, you often won't be able to fulfill the criterion of < 1% parameter error compared to an ideal OP. It's completely illusional for active filters in the higher MHz range and not necessarily reasonable even for audio filters. If the used OP has stable GBW over temperature and not much type variation, designing the (...)
Hi, I need to detect the "DC offset level" from the signal and "four stage band pass filter". I am trying to measuring the Fluorescence decay time which is come from the Fiber optic thermometer. I am driving the LED by square pulse, then the square pulse is changed depending on the temperature and the signal behaves like exponential curve. Bu
Hi, I need to detect the "DC offset level" from the signal and "four stage band pass filter". I am trying to measuring the Fluorescence decay time which is come from the Fiber optic thermometer. I am driving the LED by square pulse, then the square pulse is changed depending on the temperature and the signal behaves like exponential curve. Bu
Hi, I need to detect the "DC offset level" from the signal and "four stage band pass filter". I am trying to measuring the Fluorescence decay time which is come from the Fiber optic thermometer. I am driving the LED by square pulse, then the square pulse is changed depending on the temperature and the signal behaves like exponential curve. B
All of them (PIP, MOS cap, MOM, MIM ) might be used for active filter. However, for the best choice, you must consider voltage coefficient, temperature coefficient, matching and substrate noise.
0.1? resolution is not the problem, but accuracy ?0.1? over -40? to 140? is. I don't think you'll be able to get anything close to that without using Pt sensors. Even with Pt sensors it is challenging to design accurate system. Using some specialized IC's for this purpose might help. Actually you can make 0.01 d
Hello all, I permit to "re"post and try again to explain my problem : I use a IR sensor that provides a voltage response on the output. This output is pertubate by a regulation loop from a compressor (temperature regulation with a diode placed in the sensor). A sort of “glitch” is present on the output of the sensor (come from the
Hello I use a IR sensor that provide a voltage response on the output. This output is pertubate by a regulation loop from a compressor (temperature regulation with a diode placed in the sensor). A sort of “glitch” is present on the output of the sensor (come from the PWM command of the compressor motor). The bandwidth of the sensor is
Hi all, I'm using a PTAT current source to compensate the temperature dependence of my OTA-C filter. I was able to get Current proportional to temperature but the problem I'm facing is, the variation over process corners is too much. Is there any way I can design a PTAT current source that doesn't (or vary less) with process, prefarably (...)