The calibration tag has no wiki summary.
4
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1answer
52 views
How to calibrate an optical particle sensor (Mie scattering)
I have a very simple sensor that basically emits infrared light (1 micron wavelength in the infrared range). The light scatters off particles whose diameter is of the same order of magnitude as the ...
7
votes
2answers
191 views
Where can I send my 0.005% 1 PPM tempco calibration resistors to find out their “true” value?
edit: putting this at the top because people keep answering questions I didn't ask:
Where can I get this done cheaply by a place that is hobbyist friendly? I don't even know where to look.
I imagine ...
1
vote
1answer
93 views
PIC18F26K80 ADC calibration using Bandgap
The PIC18F26K80 errata sheet mentions that the ADC has an offset error as high as 25 bits and discusses one workaround copied from the errata here:
A/D Offset
The A/D may have high offset error, up ...
1
vote
3answers
216 views
Does calibration involve fixing electronics or mechanical part?
My question is not 100% related to electronics design but it might be because I don't know the answer.
I'm writing a simple research on anemometer calibration. The thing is all the resources I found ...
-3
votes
1answer
191 views
Calibration Resistor? [closed]
I am building a stir plate for an erlenmeyer flask and in the schematic it shows a calibration resistor between the "power in" and the "power out" terminal on the potentiometer. I am just curious as ...
6
votes
1answer
87 views
Torque measurement device calibration
I don't know if I'm at the right place to ask this question but here is my trouble :
I'm trying to find a good way of calibrating a electronic device used to measure small torques (0 -> 25 mNm).
...
0
votes
0answers
113 views
industrial water quality sensor, with analog 4-20 ma output. slope and zero point values?
Hello I have an industrial water quality sensor that measures chlorine.
the sensor has an analog output of current (classic 4-20mA).
The sensor is already calibrated and shows the right value of ...
3
votes
1answer
500 views
How to calculate a correction factor for two sensors
Suppose one has two sensors placed in the same environment (thus should be reading the same environmental data). But not being perfect instruments, there is a discrepancy between the two sets of ...
6
votes
2answers
265 views
How often should I have to set oscilloscope probe's capacitance?
I got a new Owon SDS7102 oscilloscope and I'm using the included oscilloscope probes with it.
The manual says that the proper calibration procedure is to let the oscilloscope work at constant ...
7
votes
3answers
1k views
How do you Calibrate 32.768kHz crystal for PIC24 RTCC
I'm trying to figure out the best method for PIC24 RTCC crystal calibration.
Their application note states two methods: using a lookup table and using a reference system clock.
According to them the ...
1
vote
2answers
129 views
Calibration of reading of current measuring cicuit
Ok ,I'm making a small current meter device
I was able to take the voltage coming from a "shunt resistance " which is a current transducer that gives me an specific analog signal that proportional to ...
4
votes
1answer
1k views
Magnetometer ∞ shaped calibration
In mobile phones and other devices using a 3-axis electronic compass, a ∞/8/S shaped movement is used to calibrate the magnetometer as shown in these videos.
Why is this movement performed, what is ...
18
votes
2answers
1k views
Magnetometer dynamic calibration
I am working on a Magnetometer AK8975 being a part of an IMU. Which seems to be very tricky for me. This chip gives a 3D vector as output describing earth's magnetic field at any place on earth or ...
2
votes
2answers
546 views
Confusing oscilloscope calibration signal
EDIT: See last paragraph
I recently got a cheap 2-channel oscilloscope (Hitachi V-212). Judging from the "calibration not required" sticker on the front, it's been beaten up and/or neglegted (by the ...
2
votes
2answers
472 views
Network Analyzer HP 8752A Calibration
How can I do a two-port response calibration to measure S-parameters (Reflection and Transmission) for an HP 8752A Network Analyzer?
The DUT (two coils, one in air and one in salt-water) is ...
2
votes
1answer
155 views
Precision calibration tools
What "affordable" voltage and current calibrations tools are available? I'm specifically looking for
Voltage (and preferably current) metering
0.05% Accuracy minimum (preferably 0.01%)
14 bit+ ...
3
votes
4answers
3k views
How to calibrate a temperature sensor
I am using an LM35 temperature sensor, which produces an output of 10.0 mV/°C. My circuit will handle temperatures up to around 90C
What can I do to check the LM35 output, and maybe fine tune it for ...
2
votes
3answers
503 views
What Ways to Calibrate a Multimeter?
How can one calibrate a multimeter, like a UT61E or any other multimeter in the 50 ~200 $ pricemark, when one does NOT have an expensive FLUKE nor a friend who has a FLUKE)
7
votes
3answers
433 views
How viable is it to just use 1% resistors and calibrate out the error?
At the moment, I use 0.1% resistors to get accurate voltage measurement through a voltage divider. However, the cost is high, so I was thinking of using 0.5% or 1% resistors and calibrating out the ...
8
votes
2answers
1k views
How to calibrate multimeters?
Without buying an expensive calibration tool, how can I accurately calibrate my multimeters?
