Hi Tom: While looking for something else I came across this magnatometer on the NASA web pages. You can adjust the damping by how you cut the 3x5 card. They...
Hi all, I am new this news group. I was working on a project that had to deal with the HMC1052. I understand that I have to do rotational calibration for the...
Hi John: The first step would be to make an X-Y plot of the two voltages for a number of points. The scale should be 0 to 3.0 volts on both axis. For just...
AKM Semiconductor has announced a cheap compass chip for GPS applications. Price is $5.24 in 25000 quantity. If somebody in the group will spring for a batch...
http://www.asu.edu/news/stories/200706/20070621_geophysicists.htm .... The sun emits a continuous flow of charged atomic particles called the solar wind. This...
Hi all, In 3D compasses since we have accelerometer to measure the tilt and 3rd axis, we do not have to worry having the compass parallel to earth to see the...
In Calif, we get about 2.5 degrees of error for every degree of tilt error. THis is due to the fact that the dip angle here is about 60 degrees. further north...
I want to take the next step after completing my simple torsion magnetometer (www.campparadox.com/magnetometer) I'm interested in monitoring the earth's...
Hi Tom: It's a 2-axis MR type sensor combined with analog circuitry and a digital interface, ready for a micro controller. Intended for rough compassing....
... I'm not experienced with the HM55b, but I have been experimenting with the FGM-3 for a year or so. I have found, that while the FGM-3 has the ability to...
I would expect you'll see that the FGM-3 is about 500 times as sensitive as the HM55B since it has a resolution of 2 nT which is 1/500 th of 1 uT. In the FGM...
Hi Tom: You might consider the FLC-100. It's very similar to the IEEE in this group's file section. DC output signal. http://www.prc68.com/I/BTPS.shtml#Apps ...
Brooke: 1 v / 50 uT for the FLC-100. Is it fairly linear? There are all sorts of write-ups on calibrating the FGM-1. Would that be necessary on this? How...
Hi all, Here is my question please, By adding an accelerometer sensor to a 2D compass can we compensate for the tilt? If not, why some units add a tilt sensor...
Hi Tom: Get the 2 page IEEE paper from the files section of this group. It's a feedback design so is very linear. The FLC-100 is not sold in relation to the ...
Hi Tom: In the Files section: http://tech.groups.yahoo.com/group/magnetometer/files/ fluxgate-glass-core.pdf A Fluxgate Magnetometer with a Metallic Glass Core...
Hi all, I was thinking of rotational calibration of a two Dim. compass. I understand that while I am rotating 360 degree I have to keep the compass flat level...
Hi John: I have a wrist watch that has a bubble level on the face that you need to keep centered when you use the electronic mag compass, so they don't worry...
Dear Brooke, Thank you for your valuable information. These now days, I do not think that people would have add bubbles anymore. I think accelerometer would...
Hi John: I guess it depends on where you are. Here in Northern California, and I guess most of the U.S., the Earth's magnetic vector is stronger in the up -...
Here are some other ideas John, Without an accelerometer: If you have access to the mag X-Y signals you will notice that if you tilt the compass the vector sum...
Greetings all: I have a Torsion Balance mag up and running well using a 1/4" X 1/4" X 4" Alnico 8 magnet suspended with a 14" long 0.008 guitar string. ...
Hi everyone; I'm a mechatronic engineering student and I'm trying to produce digital compass with Phillips KMZ51-52 sensors. Digital compass will be assembled...
Hi Sinan: You might want to have a look at the Daventec CMPS03. It's a PIC based compass using a couple of single axis sensors, but no tilt compensation....
Hi Sinan, The following example might be suitable for your project. You can find the hardware and software related to your topic. In this ap note HMC1052 is...
Hello Gentleman, In reference to the HMC1052 there are two arrow that represent A and B sensor and are orthogonal to each other. If one places this IC on a ...
Hi all! ... Quite a while ago a member posted, that he used the KMZ sensors, but then switched to the HMC Honeywell sensors, because those have less noise and...
Hi everyone, I just thought I should introduce myself to the group and share a bit of background on what i'm doing before I get going here. My name is Rob and...
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