Talk:Hall effect sensor

fix in opening sentence
I subtly changed the opening sentence. I changed ... voltage in response to a change in magnetic field...

into ... voltage in response to a magnetic field.

An electromagnet changes its output voltage in response to a change in magnetic field, while a hall sensor measures the magnetic field strength itself. Rewolff (talk) 06:59, 12 July 2011 (UTC)


 * with reference to this fix, I found this reference: when the magnetic flux passing through the Hall sensor exceeds a pre-set value the output from the device switches quickly between its “OFF” condition to an “ON” condition (http://www.electronics-tutorials.ws/electromagnetism/hall-effect.html). I think it is better to mention the magnetic flux. What does it happen if I use a stronger magnet? I should have a stronger field but the threshold is set and the sensor reaction time is not said to change. Yet, I guess a stronger magnet makes the switch quicker because the field's density is higher. Density means flux.--95.232.129.249 (talk) 18:07, 25 September 2014 (UTC)


 * Possibly confusion there between the linear sensor and the device it is used in. The device often includes a circuit to provide a digital output. A threshold detector will turn an output transistor on to essentially close the switch to give a digital (binary) output. - Rod57 (talk) 16:02, 28 October 2023 (UTC)

Untitled
Hall effect sensor survived the Votes for deletion page. (Votes for deletion/Hall effect sensor) Sjakkalle 15:41, 17 Mar 2005 (UTC)

Animation ... wording re use in keyboards ...
Excellent animation. I wish Wikipedia had more animated .gif's, I'd be willing to make some for other articles if anyone had any suggestions. Well done! Davepetr 11:45, 4 April 2006 (UTC)

Great page! I agree that the animated GIF adds a lot. But one small change I'd recommend is the sentence "When high reliability is required, they are used in keyboards." is awkwardly worded.


 * I agree with the above unsigned comment, keyboards are not typically a must-operate-every-time application. Also, "Electricity carried through a conductor" is not correct. Electrical current (in the form of electron flow) passes through a conductor. Additionally, Hall sensors are transducers which produce a signal analogous to a physical event, thus "Hall sensors are commonly used to time the speed of wheels and shafts" is incorrect. Hall sensors provide a signal to circuits which have been designed to do any number of things: frequency-to-voltage conversion, pulses per given unit of time, alarm hold-off signals,... etc. The above phrase would be more sensible if it read "Hall sensors are commonly used in circuits which monitor the activity of wheels and shafts..." Makuabob (talk) 21:45, 23 April 2009 (UTC)


 * I also agree. The statement seems quite out of place in the logic flow. Consider rewording by 1) creating a leadup, referring to the high reliability because they are solid-state sensors (no moving parts).. then lead into that comment. Don't just throw it in with no context.--144.191.148.3 (talk) 13:11, 8 June 2011 (UTC)

Request sensors list
Since this pae is about the sensors themselves, it would benefit by addition of A) commercial sensors available, B) information on homebrew or research sensors and how to construct them. 169.237.215.179 20:18, 20 August 2007 (UTC) 89.240.141.101 (talk) 09:48, 8 June 2009 (UTC)

Is the link to http://www.ahest.net/ (see 'external links') really appropriate for this purpose? This seems like an advertisement to me.--144.191.148.3 (talk) 13:07, 8 June 2011 (UTC)

Merge with Hall Probe
Disagree with User:Omegatron, Hall effect sensor and Hall probe should not be merged. The topics are certainly related but they are describing to different things. Hall probe is a precision instrument while the Hall effects sensor is a consumer product. I believe both articles can stand on their own. Armstrong1113149 (talk) 19:26, 14 March 2009 (UTC)

Clutch picture title misleading
The picture of a "Clutch with Hall Effect sensor" is in fact a thermostatically clutched engine fan or 'thermatic' fan with a hall effect sensor. Calling an engine fan a clutch, even if it contains a clutch of sorts, seems misleading. The term clutch would normally refer to the transmission clutch as given as the primary definition at http://en.wikipedia.org/wiki/Clutch. Djapa Owen 14:11, 13 May 2012 (UTC) — Preceding unsigned comment added by Djapa84 (talk • contribs)

Assessment comment
Substituted at 17:01, 29 April 2016 (UTC)

Keyboard Sensor Section
This section reads like an advertisement and is completely unsourced. For the moment, I have added a heap of "citation needed" tags, as I do not know enough about the subject to know if what is written is true, nor where the information came from if it is. Hall effect sensors are indeed used in keyboard switches, so it does deserve its own section, but I think someone knowledgeable on the topic needs to re-write it. In addition to adding the tags, I corrected some grammar; a new sentence began with a lowercase letter and after a comma. — Preceding unsigned comment added by Ballzac314 (talk • contribs) 10:54, 1 November 2016 (UTC)


 * If you don't know about the subject, do not litter the page with "citation needed". For all you know the matter could be so trivial to an expert that a citation is not needed. You may be like an American who doubts that you can see the Eiffel tower from the top of the Notre Dame, because you have never been to Paris.
 * Some facts can be stated without reference to a book written by a professor (see the wikipedia policy and howto pages.)

grammar issues
The second paragraph of this article has a high number of run-on sentences and some confusing syntax. Corrected these where it is clear that doing so would not change the meaning. Specifically:

Original: In a Hall effect sensor a thin strip of metal has a current applied along it, in the presence of a magnetic field the electrons are deflected towards one edge of the metal strip, producing a voltage gradient across the short-side of the strip (perpendicular to the feed current). Inductive sensors are just a coil of wire, in the presence of a changing magnetic field a current will be induced in the coil, producing a voltage at its output. Hall effect sensors have the advantage that they can detect static (non-changing) magnetic fields.

Changed to: In a Hall effect sensor, a thin strip of metal has a current applied along it. In the presence of a magnetic field, the electrons in the metal strip are deflected toward one edge, producing a voltage gradient across the short side of the strip (perpendicular to the feed current). Hall effect sensors have an advantage over inductive sensors in that, while inductive sensors respond to a changing magnetic field which induces current in a coil of wire and produces voltage at its output, Hall effect sensors can detect static (non-changing) magnetic fields.

3 April 2018‎ (Not signed by) Pschwiesow

Changed Page Title
There was no reason for the hyphenated title - moved the article from "Hall-effect sensor" to "Hall effect sensor." I've copied the rest of the article over to my sandbox and am working on a full rewrite. PianoDan (talk) 22:48, 19 April 2021 (UTC)

Major rewrite
I tried to fix many of the grammatical and organizational problems with the article. I added a few more sources, and deleted some of the superfluous material. (Keyboard models, I'm looking at you.) I strongly feel that a hyphen is NOT required in "Hall effect sensor," per WP:MOS, because an "effect sensor" is not a common or intuitive term, and therefore disambiguation is not required between Hall (effect sensor) and (Hall effect) sensor. This is doubly true given the presence of the link to the Hall effect in the lede.

It's not perfect yet, and could definitely use another pair of eyes to tighten things up further, but I think it's an improvement. PianoDan (talk) 17:43, 20 April 2021 (UTC)


 * To address the concern of the editor who reverted and then unreverted this change: The old version had more words, but I wouldn't say it was more thorough. It just had unnecessarily specific examples, many with no sourcing. We want to watch out for WP:COATRACK.PianoDan (talk) 16:29, 23 April 2021 (UTC)

I cut Hall effect and merged it into this article
As I mentioned Talk:Hall effect, the application of the Hall effect is the *Hall effect sensor*. So I cut the relatively large Hall effect section from there and pasted it into this article, and did a bunch of reordering and retweakings to make the merge work.

I will suggest future editors try to keep the Hall effect article focused on the theory of the Hall effect, while this Hall sensor article can focus on the large verity of sensing applications, with just enough basic theory to show how a Hall sensor is made from Hall elements. Em3rgent0rdr (talk) 18:16, 30 December 2023 (UTC)