SteveHB Posted July 24, 2010 Share Posted July 24, 2010 Yes, 2 of them, one top, one bottom, angled so as to give a "range" for something approaching. There are three sensors in my photo, the middle one is just in view partially hidden by vegetation. Link to comment Share on other sites More sharing options...
DaveH Posted July 24, 2010 Author Share Posted July 24, 2010 There are three sensors in my photo, the middle one is just in view partially hidden by vegetation. Interesting. Why would you need 3 to detect the speed and position of a moving object when 2 can easily do the job? It has another purpose doesn't it? Link to comment Share on other sites More sharing options...
SteveHB Posted July 24, 2010 Share Posted July 24, 2010 Interesting. Why would you need 3 to detect the speed and position of a moving object when 2 can easily do the job? It has another purpose doesn't it? In one word Dave 'Yes' Link to comment Share on other sites More sharing options...
hilldweller Posted July 24, 2010 Share Posted July 24, 2010 In one word Dave 'Yes' They look like ultrasonic transducers, the middle one is not mounted equidistant from the outer two. My guess would be a device for counting the numbers of people of different heights passing a point. Adults, children and leprechauns ? Hilldweller Link to comment Share on other sites More sharing options...
SteveHB Posted July 24, 2010 Share Posted July 24, 2010 They look like ultrasonic transducers, the middle one is not mounted equidistant from the outer two. My guess would be a device for counting the numbers of people of different heights passing a point. Adults, children and leprechauns ? Hilldweller Your answer has me rolling on the floor with laughter hilldweller Though hight could well come into it. Link to comment Share on other sites More sharing options...
Stuart0742 Posted July 24, 2010 Share Posted July 24, 2010 Your answer has me rolling on the floor with laughter hilldweller Though hight could well come into it. Not people then, animals It looks quite rural The pieces of wood either side are obviously intended to protect this device Quick guess at the place Heeley City Farm Link to comment Share on other sites More sharing options...
SteveHB Posted July 24, 2010 Share Posted July 24, 2010 Not people then, animals It looks quite rural The pieces of wood either side are obviously intended to protect this device Quick guess at the place Heeley City Farm No not Heeley City Farm Stuart, more cental than Heeley. Link to comment Share on other sites More sharing options...
DaveH Posted July 25, 2010 Author Share Posted July 25, 2010 They look like ultrasonic transducers, the middle one is not mounted equidistant from the outer two. My guess would be a device for counting the numbers of people of different heights passing a point. Adults, children and leprechauns ? Hilldweller NO, I think it must be a Soviet bugging device left over from the cold war There is a Red in the bed, a snake in the grass ..and remember, careless talk costs lives! :o Link to comment Share on other sites More sharing options...
syrup Posted July 25, 2010 Share Posted July 25, 2010 NO, I think it must be a Soviet bugging device left over from the cold war There is a Red in the bed, a snake in the grass ..and remember, careless talk costs lives! Rember be ALERT SHEFFIELD HISTORY NEEDS LERTS.. Link to comment Share on other sites More sharing options...
DaveH Posted July 25, 2010 Author Share Posted July 25, 2010 Rember be ALERT SHEFFIELD HISTORY NEEDS LERTS.. More Cold War anti-Communist hysteria on this site here DUCK AND COVER Link to comment Share on other sites More sharing options...
vox Posted July 26, 2010 Share Posted July 26, 2010 I posted this yesterday (the post disappeared) Does it control an automated car park barrier. To stop it closing onto your car (or head) Link to comment Share on other sites More sharing options...
DaveH Posted July 26, 2010 Author Share Posted July 26, 2010 I posted this yesterday (the post disappeared) Does it control an automated car park barrier. To stop it closing onto your car (or head) Could do I suppose, but even the top sensor appears to be quite low down. Link to comment Share on other sites More sharing options...
vox Posted July 26, 2010 Share Posted July 26, 2010 Could do I suppose, but even the top sensor appears to be quite low down. Low down in relation to what ? I can't see where the ground is. Anyone else ready to ask for a slightly wider view ? See if it gives us any clues. Link to comment Share on other sites More sharing options...
DaveH Posted July 26, 2010 Author Share Posted July 26, 2010 Low down in relation to what ? I can't see where the ground is. Anyone else ready to ask for a slightly wider view ? See if it gives us any clues. Yes we need a wider view. The sensors do not appear to be that far apart, they are fastened to a loose stone wall (so presumably not too high) and they are below the level that plants have grown to, again indicating not a fantastic height. A wider view may give us a better clue though. Link to comment Share on other sites More sharing options...
SteveHB Posted July 27, 2010 Share Posted July 27, 2010 Member 'hilldweller' made a post commenting that the sensor's could be for measuring/monitoring water hight, his post went for a walk, along with a few more. The sensor's do monitor water levels, and they do so for a very specific reason. What's the reason and where abouts are they? Link to comment Share on other sites More sharing options...
vox Posted July 27, 2010 Share Posted July 27, 2010 Member 'hilldweller' made a post commenting that the sensor's could be for measuring/monitoring water hight, his post went for a walk, along with a few more. The sensor's do monitor water levels, and they do so for a very specific reason. What's the reason and where abouts are they? Must be on the canal. The only reason I can think of for monitoring "specific" water levels. IE three specific levels as opposed to the general level, would be at a (probably automated) lock gate on the canal. Just thought of another reason to have them on a canal. Warnings of: Middle and top sensor ---- Upper and lower limits of optimum water level Bottom sensor ---- critical level below which the system won't function. Anywhere close ? Link to comment Share on other sites More sharing options...
SteveHB Posted July 27, 2010 Share Posted July 27, 2010 Must be on the canal. The only reason I can think of for monitoring "specific" water levels. IE three specific levels as opposed to the general level, would be at a (probably automated) lock gate on the canal. Just thought of another reason to have them on a canal. Warnings of: Middle and top sensor ---- Upper and lower limits of optimum water level Bottom sensor ---- critical level below which the system won't function. Anywhere close ? All the locks on the Tinsley flight are manually operated, the nearest electrically operated lock on the S&S.Y.N. is at Eastwood, Rotherham. The photo was taken very near to our Town center. It was a good guess though vox. Link to comment Share on other sites More sharing options...
vox Posted July 27, 2010 Share Posted July 27, 2010 All the locks on the Tinsley flight are manually operated, the nearest electrically operated lock on the S&S.Y.N. is at Eastwood, Rotherham. The photo was taken very near to our Town center. It was a good guess though vox. That's me all guessed out now then. Link to comment Share on other sites More sharing options...
hilldweller Posted July 27, 2010 Share Posted July 27, 2010 Member 'hilldweller' made a post commenting that the sensor's could be for measuring/monitoring water hight, his post went for a walk, along with a few more. The sensor's do monitor water levels, and they do so for a very specific reason. What's the reason and where abouts are they? Could they be something to do with the automated sieve "thingies" that are fastened where rivers/culverts start to go undergrand. I seem to remember something similar where the River Porter goes into a culvert to join the Sheaf in the "Megatron" under the Midland Station. I think the highest sensor would completely withdraw the motorised grating if the level was high enough and the grating blocked with debris. Hilldweller Link to comment Share on other sites More sharing options...
SteveHB Posted July 27, 2010 Share Posted July 27, 2010 Could they be something to do with the automated sieve "thingies" that are fastened where rivers/culverts start to go undergrand. I seem to remember something similar where the River Porter goes into a culvert to join the Sheaf in the "Megatron" under the Midland Station. I think the highest sensor would completely withdraw the motorised grating if the level was high enough and the grating blocked with debris. Hilldweller Good enough for me HD, I think there are only two automated 'trash screens' the one you mention on the River Porter next to Midland Station, my photo was taken on the River Sheaf along side of Queens Rd, just upstream of where the river disappears underground on it's journey towards Midland Station. <iframe width="562" height="314" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="http://maps.google.co.uk/maps?hl=en&ie=UTF8&t=h&layer=c&cbll=53.373938,-1.462899&panoid=HJOvdzyA1jK1ZypR2IPauw&cbp=13,303.65,,0,-0.97&ll=53.375239,-1.462716&spn=0,0.003015&z=18&source=embed&output=svembed"></iframe><br /><small><a href="http://maps.google.co.uk/maps?hl=en&ie=UTF8&t=h&layer=c&cbll=53.373938,-1.462899&panoid=HJOvdzyA1jK1ZypR2IPauw&cbp=13,303.65,,0,-0.97&ll=53.375239,-1.462716&spn=0,0.003015&z=18&source=embed" style="color:#0000FF;text-align:left">View Larger Map</a></small> Link to comment Share on other sites More sharing options...
hilldweller Posted July 27, 2010 Share Posted July 27, 2010 Good enough for me HD, I think there are only two automated 'trash screens' the one you mention on the River Porter next to Midland Station, my photo was taken on the River Sheaf along side of Queens Rd, just upstream of where the river disappears underground on it's journey towards Midland Station. When I last looked at the set-up by the Midland Station the water level switches seemed to be conventional electronic level gauge rods mounted inside inverted bells to shield them from moving debris. This was many moons ago when my mobility was such that I could wander about noticeing such things. At that time the machinery was newly installed. Perhaps the wall mounted gauges are a replacement or as a "belt and braces" addition. What a sad thing that I can remember technical details from about 20 years ago. Hilldweller. Link to comment Share on other sites More sharing options...
SteveHB Posted July 27, 2010 Share Posted July 27, 2010 When I last looked at the set-up by the Midland Station the water level switches seemed to be conventional electronic level gauge rods mounted inside inverted bells to shield them from moving debris. This was many moons ago when my mobility was such that I could wander about noticeing such things. At that time the machinery was newly installed. Perhaps the wall mounted gauges are a replacement or as a "belt and braces" addition. What a sad thing that I can remember technical details from about 20 years ago. Hilldweller. There may be more water level sensors near to or on the bridge at Queens Road, the view is very restricted by trees and walls. the ones in my photo are about 100 yards upstream of the bridge/culvert, set at a higher level as they are just top side of a sill (if that's the right term) on the river, so perhaps they contribute to the four minute warning. Link to comment Share on other sites More sharing options...
Stuart0742 Posted July 29, 2010 Share Posted July 29, 2010 Back in January 2009 Steve posted a mystery hole full of water Now I have just seen another mystery hole full of water Where's this Link to comment Share on other sites More sharing options...
DaveH Posted July 29, 2010 Author Share Posted July 29, 2010 Back in January 2009 Steve posted a mystery hole full of water Now I have just seen another mystery hole full of water Where's this Given the state of Sheffield's roads after the damage caused by the recent very long, cold, icy winter and the lack of the ability of the Council to repair them then a local "Mystery hole full of water" could be just about anywhere! lol Link to comment Share on other sites More sharing options...
SteveHB Posted July 30, 2010 Share Posted July 30, 2010 Where's this I worked across the road from the building in background (L/H side) that was back in 1974, we manufactured aluminium kilns for curing wood. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now