To: High Voltage listing Subject: Re: Switch-mode provide for bug zapper (fwd) You want the factors for the steel you intend to make use of. Differing kinds have completely different losses. You get hold of this from the mfgr. Digi-Key has some cheap IR kind emitters & detectors. Have the fly crawl a distance, like 4-6 inches inside the tube, after which, he triggers the IR beam which controls the zapper. A small single ended NST works great for this application. The current will burn them proper up. The fly hits the IR beam at the 1/2 mid-approach point which energizes a small grid in every route. The midpoint has a section 2 inches lengthy with no grid. They develop into trapped and cannot exit either path with out getting zapped. You possibly can also use a 600 Ohm to 10K audio xmfr. They make good HV sparks working in a pulsed mode. If the time duration is short, like 1-2 sec, they may additionally charge a cap rectified with a 1/2 wave diode in a short while interval. Then the charged cap waits for the fly. The charging cycle happens every 5 minutes and is controlled by a 555 IC chip --- a small relay controls the power section. You set sugar crystals within the tube and at the end of the tube use a small glass take a look at tube so you can see your accumulated flies to regulate the time periods. The flies will accumulate and then try to go out the charged grid part. The one now we have uses a traditional laminated iron, 50Hz transformer. I'd like, so I'm taking a look at making a switchmode version. 2) Ditto for sizing the components for the snubber. HV rectification and that I'd want a string of excessive-speed diodes.
Dynatrap makes insect traps that work on the identical precept as others. They entice flying bugs with warmth and carbon dioxide, then catch them and stop them from escaping. For warmth, they use a fluorescent ultra-violet bulb, which also emits bug-attracting gentle. The principle difference is that they don’t use propane to create carbon dioxide (CO2). Instead, they use a particular course of. More on that under. Since they don’t use propane, which means no need to buy and Defender by Zap Zone change cylinders, and better of all, no upkeep issues with clogged traces or failure of the propane to light-issues that hassle many other traps. You continue to must plug them in, so you’ll want an out of doors outlet and an extension cord if you'd like grasp the entice more than 7-10 ft from the outlet. The DT2000XL mannequin is costlier than the DT1000 mannequin, however it’s bigger, with a stronger fan and Zap Zone Defender vibrant gentle, and Zap Zone Defender can appeal to bugs from farther away, with coverage as much as an acre for the DT2000XL and a half-acre for the DT1000, based on the producer.
If you’ve undoubtedly determined not to buy a propane mosquito lure, this is the following best thing. I’ll list the pros and cons of the 2 fashions collectively, as a result of they’re related. Its initial cost is cheaper than propane traps. It doesn’t require the trouble and expense of replacing propane tanks. It catches other bugs besides mosquitoes, though that’s not at all times good if they’re helpful ones. You can use it indoors or outdoors. The only sound is the quiet humming of the fan and there’s no odor. It’s protected for pets, chemical-free bug control children and the atmosphere, Zap Zone Defender because it uses no insecticides. The large one: it doesn’t necessarily kill mosquitoes specifically, so you may get extra moths or different issues as a substitute. You’ll have to mount it about 5 to 6 feet off the ground. One mannequin, the DT1200, comes with its own hanger, however otherwise, it needs a tree branch, submit, wall, fence, and many others. to grasp or Defender by Zap Zone sit on.
If you employ it outdoors, it might have some rain shelter to prevent water from moving into the collecting space. It wants an outlet 7-10 feet away or an extension cord. It’s difficult to empty without letting some bugs escape. The claim that it emits an effective quantity of CO2 has been questioned. Like all traps, it needs positioned in a superb location, shady and sheltered, where mosquitoes can discover it, however not where you’ll be bothered by them. The lights in the highest of the entice emit warmth and ultraviolet rays, which appeal to mosquitoes as well as different insects, significantly moths at evening. There are openings under the lights the place bugs can fly in. Once inside, they’re sucked down by the fan’s air currents into the retaining cage under, Zap Zone Defender the place they’re unable to flee and die within a day. Unfortunately, mild and warmth are simply two of the issues that appeal to mosquitoes, since what they’re mainly in search of are people to bite.
Carbon dioxide is what they actually seek, since we and other animals emit it after we exhale. Mosquitoes know that in the event that they follow that vapor path, there will be a tasty animal on the other finish, ready to be bitten. To produce carbon dioxide, the Dynatrap uses a broad sort of funnel above the fan, coated with titanium dioxide (TiO2). The producer claims that when the ultraviolet light reacts with the TiO2, "a photocatalytic reaction takes place that produces carbon dioxide." That is the process it uses, as an alternative of burning propane like other traps. However, when the University of Wisconsin tried to measure the amount of carbon dioxide emitted, they reported that they detected none in any respect. One reviewer pointed out that the TiO2 floor would wish coated with a source of carbon, Zap Zone Defender like mud or dead bugs, to ensure that the method to make carbon dioxide. See the review right here (scroll right down to Dr. Marsteller’s comment).