Emitters (ultrasonic) are actively used in echo 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 use terminals that affect the overall level of resistance.
Device diagram
The standard device circuit contains two terminals and one capacitor. The rod is used with a diameter of 1.2 cm. A magnet for the operation of the system will require a neodymium type. At the bottom of any emitter is a stand. Capacitors can be mounted through an expander or terminals. The selenoid winding is used with a conductivity of 4 microns.
Ring modification
Ring submersible ultrasonic emitters are typically manufactured for echo sounders. Most models have dipole capacitors. The linings for 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. At the top 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 protection system. The discharge conductivity of them is at least 5 microns. In this case, the frequency can vary greatly. In this case, much depends on the sensitivity of the element.
Rope device
An ultrasonic emitter for a humidifier with a spring is considered very common. If we consider the standard model, then it has three capacitors. Typically, they are of a three-channel type. The overall resistance level for this type of emitter 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. The discharge conductivity is not more than 5.2 Mk.
Some modifications are used with the top location of the yar. As a rule, it is located above the stand. It should also be noted that there are emitters with single-pole adapters. Solenoids are suitable for them only with high conductivity. At the top of the device, several rings are used. Sensitivity at discharge is approximately 10 mV. If we consider modifications on resistor capacitors, then they have a total resistance level maximum reaches 55 Ohms.
Double wound model
Emitters (ultrasonic) with double winding have recently been manufactured with an amplifier. Such devices are actively used on converters. Some emitters are made with double capacitors. Windings are 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. First of all, the diameter of the rod is taken into account. It should also be noted that expanders are used with and without linings.
DIY reflector-based emitters
Do-it-yourself ultrasonic emitter can be made from reflectors. First of all, a neodymium magnet is procured. The stand is used with a width of about 4.5 cm. The stroke is allowed to be installed only after the rod. It should also be noted that the magnet is fixed on the lining and is closed by a ring.
The terminals for the device are selected conductor type. The discharge conductivity should be about 6 microns. The general resistance level for emitters of this type is not more than 55 Ohms. Capacitors are used in different types. Directly reflectors are selected small thickness. To install the elements you will have to use a blowtorch. The upper part of the rod is twisted on the film. In this case, it is important not to overlap the terminals.
Fishfinder Devices
Emitters (ultrasonic) for echo sounders have good conductivity. The diameter of the rod in the standard model is 2.4 cm. Rings are usually used tight-fitting type. Modern models are made with conical stands. They are light in weight and can work in conditions of high humidity. Solenoids are used in different diameters. At the bottom of the devices, an electrical tape is necessarily wound. If necessary, the emitter for the echo sounder can be made independently. Capacitors are used for this purpose two-channel type. If we consider the device with a 2.2 cm rod, then the overall resistance level will be 45 Ohms.
Modifications for fish finders
Emitters (ultrasonic) for fish finders are made with terminals of different conductivity. The most popular are modifications with adapters and sensitivity at the level of 12 mV. Some devices are equipped with compact single-channel capacitors. The conductivity at boot is 2 microns. Magnets on emitters are installed in different diameters.
Most models are made with low stands. It should also be noted that devices are distinguished by high frequency. The terminals have good conductivity, but in this case a lot depends on the thickness of the rod. Protective rings are installed in the upper part of the winding. To increase the conductivity of the emitter, terminals with a sensitivity of 15 mV are used.
Low impedance models
The ultrasonic emitter for a low- impedance humidifier is compact in size. Windings are used with a thickness of 0.2 cm or more. Magnets are mounted on supports or pads. The terminals are fixed at the top of the device. The standard version includes three capacitors.
The total resistance is not more than 30 ohms. Capacitors for some models are dual channel type. In this case, the conductivity is approximately 2 microns. There are also modifications with large diameter rods. They are used in fish finders. Most emitters are made specifically for converters. Clamping rings are made of rubber or plastic. On average, the diameter of the rod in the modification is 2.2 cm.
High impedance devices
Modifications of this type are made, as a rule, for receivers. Their total conductivity level is 4 microns. Most devices are powered by contact terminals. It should also be noted that there are devices with a sensitivity of 15 mV or more. Capacitors for modifications select a three-channel type. There are also resistor models. They have a common resistance level starting at 55 ohms. Magnets on a powerful ultrasonic emitter are installed only in the neodymium type. On average, the diameter of a part is 4.5 cm. Stands can be made with pads or protective insulating films.
Single Junction Capacitor Models
Devices of this type are capable of providing conductivity at the level of 5 microns. They have a fairly high sensitivity. The rods on the ultrasonic emitter are installed with a diameter of 2 cm or more. Windings are used only with rubber rings. At the bottom of the devices, dipole terminals are used. The overall level of resistance when loaded is 5 ohms. Capacitors may be installed on emitters through expanders. Adapters are used to extend low frequencies.
If necessary, you can make a modification to two capacitors. For this, terminals are installed with conductivity from 2.2 microns. The rod is selected with a small diameter. It should also be noted that a short stand of aluminum alloy is required. As insulation for the terminals, electrical tape is used. In the upper part of the emitter is attached 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.