Electronic design is complete, I have heard. Mechanical design may be done as well.
Field testing of pre-production prototypes comes next, then if it goes well - production and sale.
Meanwhile I am following things as well as I can - a couple of Facebook groups on beach detecting are onto it.
I know I have posted links to this video (in French) lots of times, but here it is again. the difference now is that (with a lot of help from Google translate) I have prepared a timeline translation/summary for the whole thing. First a couple of definitions, then the timeline.
https://m.youtube.com/watch?v=G8sdp4RG73g&feature=youtu.be#
My work
__________________________________
Bague OR - gold ring
Tous Metaux - all metal
Discri - discrimination
Discri Coupure du fer - Iron discrim. By silencing
Discri multitons - iron discrim by multitone
0:07 - First test “in the air” Gold Ring - 18K - 2.7 grams - size 11
0:12 - Mode “All Metal”
0:21 - Mode “Discrimination iron cut” - 2 nails (6 cm) crossed
0:29 - Mode “Discrimination multitone” - 2 nails (6 cm) crossed
0:40 - Swing speed test
0:52 - Second test “in the air” - Iron discrim. By silencing
1:00 - The gold is detected beneath the iron - no discussion of recovery speed (it’s zero)
1:10 - The high tone of gold is heard along with the low sound of iron
1:45 - a bag of black volcanic basalt sand from Fuertavantura in the Canary Islands is shown - this has a high Magnetite content as shown next
Until 2:12 - All Metal - demonstrate that all targets - including the volcanic sand react
2:14 - Iron Cut - the ring under the nails responds with normal good tone - the nails and sand are ID’d as ferrous.
2:32 - the sand bag is over the ring and the ring is still a good strong signal - the nails next to it are ID’s as ferrous
2:54 - the same process in multitone ID
3:01 - a Minelab Soverign is introduced and the set up shown
To 3:45 - the Sovereign shows reject of nails and sand bag, acceptance of ring
3:53 - two nails crossed over the ring - no signal
4:17 - the nails removed, the black sand bag put over the ring - weak iron signal
4:32 - CTX. Introduced and set up shown
To 5:30 - CTX gives iron signal over nails, silent over sand bag and gives good signal on ring
5:33 - two nails crossed over ring - CTX gives iron signal, then nails removed and black sand placed over ring - no signal
6:20 - bag removed - CTX gives good signal over ring
6:23 - again only iron signal when nails crossed over ring
6:45 - second (larger) bag of volcanic basalt black sand from Reunion Island introduced
To 6:54 - the ring is placed ON TOP OF the bag - the CTX gives a weak signal side to side - and iron signal front to back - compare this signal to the ring alone (at 5:26 and 6:20)
6:56 - 7:07- the smaller bag is put on top of the ring still resting on the larger bag - CTX gives no signal
7:08 - the Manta - in iron cut mode - sounds on the ring, weak reaction to small bag on top of large bag of black sand, then hits ring strongly after it is placed on top of the large bag and covered by the small bag
7:52 - 8:15 - the Manta still in iron cut discrimination mode - hits ring strongly under both bags - then “cuts” nails to demonstrate discrim is still on
8.36 - Manta demos recovery speed - ring right next to both bags piled up - perfect signal
9:08 - Manta = still in iron cut - hits ring under both bags of sand and covered by crossed nails
To 9:53 further demo of iron cut discrim of the sand bags and nails
9:55 - two shallow holes - two nails in one, the ring under 2 nails in the other
10:58 - Manta in all metal sounds off over both covered holes - the nails give a characteristic “double” signal
11:24 - iron cut - nails silent - good signal from ring under nails
11:57 - first small bag of sand over ring - good signal - then large bag - then both bags - same result.
13:56 Gold coin 2 Escudos (about 22 MM - 7 grams) it is buried about 12” deep and is easily detected in iron cut discrimination after demonstrating that there is no other signal in the sand (coin inserted at 15:26)
17:50 - a large gold signet ring 5.7 grams is buried 40 cm (about 16”) it is easily detected in all metal
To 23:10 (end of video) Manta easily hits the ring in both iron cut discrim and multitone discrim.
Field testing of pre-production prototypes comes next, then if it goes well - production and sale.
Meanwhile I am following things as well as I can - a couple of Facebook groups on beach detecting are onto it.
I know I have posted links to this video (in French) lots of times, but here it is again. the difference now is that (with a lot of help from Google translate) I have prepared a timeline translation/summary for the whole thing. First a couple of definitions, then the timeline.
https://m.youtube.com/watch?v=G8sdp4RG73g&feature=youtu.be#
My work
__________________________________
Bague OR - gold ring
Tous Metaux - all metal
Discri - discrimination
Discri Coupure du fer - Iron discrim. By silencing
Discri multitons - iron discrim by multitone
0:07 - First test “in the air” Gold Ring - 18K - 2.7 grams - size 11
0:12 - Mode “All Metal”
0:21 - Mode “Discrimination iron cut” - 2 nails (6 cm) crossed
0:29 - Mode “Discrimination multitone” - 2 nails (6 cm) crossed
0:40 - Swing speed test
0:52 - Second test “in the air” - Iron discrim. By silencing
1:00 - The gold is detected beneath the iron - no discussion of recovery speed (it’s zero)
1:10 - The high tone of gold is heard along with the low sound of iron
1:45 - a bag of black volcanic basalt sand from Fuertavantura in the Canary Islands is shown - this has a high Magnetite content as shown next
Until 2:12 - All Metal - demonstrate that all targets - including the volcanic sand react
2:14 - Iron Cut - the ring under the nails responds with normal good tone - the nails and sand are ID’d as ferrous.
2:32 - the sand bag is over the ring and the ring is still a good strong signal - the nails next to it are ID’s as ferrous
2:54 - the same process in multitone ID
3:01 - a Minelab Soverign is introduced and the set up shown
To 3:45 - the Sovereign shows reject of nails and sand bag, acceptance of ring
3:53 - two nails crossed over the ring - no signal
4:17 - the nails removed, the black sand bag put over the ring - weak iron signal
4:32 - CTX. Introduced and set up shown
To 5:30 - CTX gives iron signal over nails, silent over sand bag and gives good signal on ring
5:33 - two nails crossed over ring - CTX gives iron signal, then nails removed and black sand placed over ring - no signal
6:20 - bag removed - CTX gives good signal over ring
6:23 - again only iron signal when nails crossed over ring
6:45 - second (larger) bag of volcanic basalt black sand from Reunion Island introduced
To 6:54 - the ring is placed ON TOP OF the bag - the CTX gives a weak signal side to side - and iron signal front to back - compare this signal to the ring alone (at 5:26 and 6:20)
6:56 - 7:07- the smaller bag is put on top of the ring still resting on the larger bag - CTX gives no signal
7:08 - the Manta - in iron cut mode - sounds on the ring, weak reaction to small bag on top of large bag of black sand, then hits ring strongly after it is placed on top of the large bag and covered by the small bag
7:52 - 8:15 - the Manta still in iron cut discrimination mode - hits ring strongly under both bags - then “cuts” nails to demonstrate discrim is still on
8.36 - Manta demos recovery speed - ring right next to both bags piled up - perfect signal
9:08 - Manta = still in iron cut - hits ring under both bags of sand and covered by crossed nails
To 9:53 further demo of iron cut discrim of the sand bags and nails
9:55 - two shallow holes - two nails in one, the ring under 2 nails in the other
10:58 - Manta in all metal sounds off over both covered holes - the nails give a characteristic “double” signal
11:24 - iron cut - nails silent - good signal from ring under nails
11:57 - first small bag of sand over ring - good signal - then large bag - then both bags - same result.
13:56 Gold coin 2 Escudos (about 22 MM - 7 grams) it is buried about 12” deep and is easily detected in iron cut discrimination after demonstrating that there is no other signal in the sand (coin inserted at 15:26)
17:50 - a large gold signet ring 5.7 grams is buried 40 cm (about 16”) it is easily detected in all metal
To 23:10 (end of video) Manta easily hits the ring in both iron cut discrim and multitone discrim.
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