Emitters (ultrasound) are actively used inecho sounders. Additionally, devices are used in receivers. Modern modifications are distinguished by high frequency and have good conductivity. The sensitivity of the emitter depends on many factors. It is also worth noting that the models have terminals that affect the overall resistance level.
Device Diagram
The standard circuit contains two terminals.and one capacitor. The rod is used with a diameter of 1.2 cm. A magnet is required for the system to work. At the bottom of any radiator is a stand. Capacitors can be mounted through the expander or terminals. Selenoid winding is used with a conductivity of 4 microns.
Ring modification
Ring Submersible Ultrasonic Emitters,usually produced for echo sounders. Most models have dipole capacitors. Lining under them are selected from rubber. The total resistance level in devices of this type is 50 Ohms. Terminals are used with and without an adapter. In the upper part of the selenoid is a protective ring. The rod is used with a diameter of at least 2.2 cm. In some cases, capacitors are used channel type with a system of protection. Their discharge conductivity is at least 5 microns. In this case, the frequency can vary greatly. In this case, much depends on the sensitivity of the element.
Device with a yarn
Ultrasonic radiator for a humidifier with a springconsidered very common. If we consider the standard model, then it has three capacitors. As a rule, they are used three-channel type. The total resistance level of this type of radiator is 55 Ohms. They are often placed on echo sounders and low frequency receivers. Also models are suitable for converters. Magnets are used with a diameter of 4.5 cm. Stands are made of brass or steel. Discharge conductivity is not more than 5.2 Mk.
Some modifications are used with the upperlocation yara. As a rule, it is located above the stand. It should also be noted that there are radiators with unipolar adapters. Solenoids are suitable for them only with high conductivity. Several rings are used at the top of the device. Discharge sensitivity is approximately 10 mV. If we consider the modifications on resistor capacitors, then their total resistance level reaches a maximum of 55 Ohms.
Dual winding model
Emitters (ultrasonic) with double winding inRecently produced with an amplifier. Such devices are actively used on converters. Some radiators are made with double capacitors. Winding is used with a wide ribbon. The rods are suitable with a diameter of 1.3 cm. The terminals must have a conductivity of at least 5 microns. The frequency of devices depends on many factors. The first is taken into account the diameter of the rod. It should also be noted that extenders are used with and without linings.
Emitters on the base of the reflector do it yourself
From the reflectors can be done ultrasonicemitter with your own hands. In the first place neodymium magnet is harvested. The stand is applied with a width of about 4.5 cm. Stroke is allowed to be installed only after the rod. It should also be noted that the magnet is fixed on the lining and closes the ring.
Terminals for the device are selected conductortype Discharge conductivity should be about 6 microns. The total resistance level of emitters of this type is equal to no more than 55 Ohms. Capacitors are used in different types. Directly reflectors are selected small thickness. To install items have to use a blowtorch. The upper part of the rod twists on the film. In this case, it is important not to overlap the terminals.
Devices for echo sounders
Emitters (ultrasonic) for echo sounders havegood conductivity. The diameter of the rod in the standard model is equal to 2.4 cm. Rings, as a rule, are used of the covering type. Modern models are made with conical supports. They have a low weight and they can work in conditions of high humidity. Solenoids are used in different diameters. At the bottom of the device must wrap electrical tape. If necessary, the emitter for sonar can be done independently. Capacitors for this purpose are of the dual channel type. If we consider a device with a 2.2 cm rod, then its total resistance level will be 45 ohms.
Modifications for Fishermen
Emitters (ultrasonic) for fish findersare made with terminals of different conductivity. The most popular are modifications with adapters and a sensitivity of 12 mV. Some devices are equipped with compact single-channel capacitors. Conductivity when loading them is 2 microns. Magnets on the emitters are installed in different diameters.
Most models are made with lowcoasters. It should also be noted that the devices are distinguished by high frequency. The terminals have good conductivity, but in this case, much depends on the thickness of the rod. Protective rings are installed at the top of the winding. To increase the conductivity of the radiator terminals are used with a sensitivity of 15 mV.
Low-impedance models
Ultrasonic Emitter for Air Humidifierlow wave resistance is distinguished by compact dimensions. The windings are used with a thickness of 0.2 cm. Magnets are mounted on stands or pads. Terminals are fixed at the top of the device. Standard modification includes three capacitors.
The total resistance is notmore than 30 ohms. Capacitors for some models are used two-channel type. In this case, the conductivity is about 2 microns. There are also modifications with large diameter rods. They are used in echo sounders. Most emitters are made specifically for converters. Rings for clamping are used from rubber or plastic. On average, the diameter of the rod in the modification is 2.2 cm.
Devices of high wave resistance
Modifications of this type are made, as a rule,for receivers. Their total level of conductivity is 4 microns. Most devices operate on contact terminals. It should also be noted that there are devices with a sensitivity of 15 mV. Capacitors for modification pick up a three-channel type. There are also resistor models. They have a common resistance level starting at 55 ohms. Magnets on a powerful ultrasonic transducer are installed only neodymium type. On average, the diameter of the part is 4.5 cm. Stands can be made with linings or protective insulating films.
Models with unijunction capacitors
Devices of this type are capable of providingconductivity of 5 microns. They have a rather high sensitivity. The rods on the ultrasonic transducer are installed with a diameter of 2 cm. The windings are used only with rubber rings. Dipole terminals are used at the bottom of the devices. The total resistance level at a busy is 5 ohms. Capacitors are allowed to install on emitters through expanders. Adapters are used to extend the low frequencies.
If necessary, you can make a modification ontwo capacitors. For this purpose, the terminals are installed with a conductivity of 2.2 microns. The rod is selected small diameter. Also it should be noted that you need a short stand made of aluminum alloy. As insulation for the terminals used electrical tape. At the top of the emitter is mounted two rings. Directly capacitors are mounted through a dipole expander. The total resistance level should not exceed 35 ohms. Sensitivity depends on the conductivity of the terminals.
