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1000 Threads found on edaboard.com: Fuel Meter
Hi, I am looking for a converter to transfer the mechnical energy from bicycling pedal to the electrical energy. Here is the application: 1. the tire of the bicycle can move ahead around 1 meter per second, that is the input of the mechnical energy 2. I am trying to charge a battery that is 3V and 500mAhr capacity. That is where the output ele
hello, this printer power supply is dead,I cant figure out with my limited knowledge that why the lower output part of circuit is not getting any DCV. I have measured voltages across transformer and I found 24v but nothing on the other side of transformer, please have a look at pictures, any help is kindly appreciated. thanks. [COLOR="#FF00
How do you convert rad^2/Hz to dBc/Hz ? - - - Updated - - - Ok, it's 10 log (rad^2/Hz)^2 / 2
I'm trying to figure out why when I measure current on my FLUKE 289 meter it reads .536 on the mA scale and 276 on the uA scale when I apply .52v from a power supply through a resistor. I assume the difference internal resistance. Can anyone confirm? Thanks PV
157828 I am tracing a circuit for TDS ( Total dissolved substance) meter where I found this Microcontroller. I could not get details of this IC yet.
I have an 8mm hose that flows the gas. Gas is Air or CO2 or Agron. Gas pressure is 0-10bar. 1.Pressure Can you recommend a pressure sensor? 0-10bar, Voltage or digital output, resolution min 12bit, to PCB with 4/6mm hose or direct to 1/8" or 1/4" fitting, low price , I do not resist the Chinese product. 2. Flow I also need to measure the
I look at the subject would like to realize it for one frequency below 20MHz, so that the meter is on the same PCB as an RF amplifier. Toroids for measurement T37-43 , RF line go on PCB -> wire through the toroid -> back to PCB, max lenght of
I am receiving pulsed beam microwave bursts in the 2.4 - 2.5 Ghz range with a beam width <3 m from straight up. The highest power so far has been 62,981 mW/sq m. I have many readings above 10,000 mW/sq m. I am using relatively cheap RF meters, yet this doesn't make sense even when allowing for large inaccuracies. I have been regularly detecting the
Hello everyone, I have a 13.56 MHz signal value between 80-100 V. I need to translate these voltages to 0-5 V for my microcontroller with the highest resolution. I understand that I can step down the voltage using a transformer. However, I would like to know an analog circuit example in which I can use instead a transformer. Many thanks in a
Hello everyone, I?m a student majoring in EE. I want to design a wide-band high-efficiency rectifier for wireless power transmission based on the paper below. I used the same diode as it said: HSMS286c in HFDiode lib. I used the variable 'f' to simulate the Zin in different frequencies. However, the verdict is different from the paper's result a
Hi, everyone! I'm an electronic enthusiast from China. I'd like to ask you a question. Recently, I made an RF power amplifier with 2sc1971, and connected the transmitting antenna to adjust the standing wave to a minimum of 1.05. Instead, the transmitting power is not as large as when the standing wave is greater than 1.05. Why? Thank you!
Where can I buy a budget RF meter (1-5GHz), and which brand is good for that? I need it for verifying my experimental setup for radio tomography and require to read WiFi signals.
Hi everyone, I am using this limit switch (LS): D-F9N (NPN - sink) output. I used an oscilloscope to monitor its output. The observed output is under two cases as follows: 1. Zero volt DC if the LED of the LS on. 2. A noising signal around zero if the LED off. Is it a normal working condition for LSs? (The LS is powered at 24VDC) Please give m
There are 7-Segment Voltmeter kits with 3-Digits at aliexpress.The cost is lower than what you do by yourself Can you please elaborate, I am new to all of this.... I see tons of them and trying to make sense of it You mean this by any chance?
Hi I have a 0-100uA analogue meter (needle) that has a marked scale of 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 and subdivisions between these. I want to be able to measure voltage of 0-10v with it, but the marked points to represent the actual voltages. In other words, the point 10 to represent 1v, the point 50 to represent 5v, the point 90 to r
sometimes you want to know the resistance of a running circuit, some components have different resistance in off or on state, like MOSFETs or bjt, how can I accomplish it without ruining the circuit? it will be useful to calculate the dissipated energy of a continuous circuit and its efficiency though.
Hi this is my attempt to create a cheap but effective 1-60MHz measurement marker generator and simple tracking generator for a Tektronix 491 vintage spectrum analyzer. The nominal levels of the input of the analyzer are shown in the right. Calibration, a must for old machines, should be of no importance with my plugin, since the DDS generated mar
First of all yes it is homework but I worked on it and stuck at only this part. Maybe I am approaching on wrong side I am open to every advice. I need to design a environmental noise checker circuit. I am not allowed to use any IC except OPAMPS! Passive elements (resistors, capacitors, inductors, diodes), LEDs, Analog Microphone, DC Power Supply
First of all yes it is homework but I worked on it and stuck at only this part. Maybe I am approaching on wrong side I am open to every advice. I need to design a environmental noise checker circuit. I am not allowed to use any IC except OPAMPS! Passive elements (resistors, capacitors, inductors, diodes), LEDs, Analog Microphone, DC Power Supply