Pinpointedly nowadays is called compact metal detectors. Class of accuracy, they are quite different. It should also be noted that devices of this type has its own sensitivity. The main element of pinpointer can be called a spool. It is most often orthogonal to the type. However, in this situation much depends on the accuracy class of the instrument. To assemble a simple pinpointer with your hands, you should familiarize yourself with known configurations.
To make this type of pinpointer your own hands, you must first prepare the housing for the device. For this reason, many experts recommend to use a conventional flashlight. The main problem at this stage is to find a good modulator. Typically, two wire capacitor select the non-linear analogue. Directly coil is obliged to be at the front of the device. Batteries should be installed with the modulator. Removing them from the flashlight. The minimum capacity of batteries is required to be 200 mAh. 25 minutes of continuous operation that is quite enough.
To Do with capacitors, three-wire pinpointer his hands is quite difficult. The modulator in this case is only suitable for linear type. In our time to find it in shops of electronics is not easy. Also note that the coil must be installed under the amplifier. Some additionally equip the device with a Zener diode. To increase the sensitivity of the model they fit perfect. The battery in this situation may be commonly used from the flashlight.
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To collect this type of pinpointer your own hands, you must first take the body of the flashlight. The minimum modulator frequency threshold required to sustain 200 Hz. All this will allow the sensitivity of the device to maintain at a high level. As a tester this device is used quite often. To activate interrupt in design, you need to install the controller.
Often it is used the push button type. In this case, it is necessary to pay attention to the features of the body, which belonged to the flashlight. The coil for this purpose it is better to choose a simple. However, the input voltage limit it is obliged to maintain at the level of 15 V. All of this will improve the accuracy of readings.
To Collect, pinpointer "Baby-FM2" his hands is quite simple. The specified device is characterized by the fact that the sensitivity is low. However, the cost model is extremely low, and for home use the specified device fits perfectly. The modulator used in this case is of nonlinear type. It is mounted directly at the controller.
Often in the market you can meet rotary counterparts. An inductor input threshold voltage max is able to maintain at the level of 10 V. it should Also be noted that this device higher conductivity current. This was achieved through the installation of the Zener diode. Further, to collect, pinpointer your hands "Baby FM", it is necessary to solder the capacitors. Only then the contacts are connected to the Zener diode. In the end, will only need to fix the battery in the case.
Make a low sensitivity pinpointer with their hands in the transistors is possible through such a device as beeper. It is mounted in the housing immediately behind the modulator. Amplifier this device is suitable only for pulse type. The capacitors for the device you can pick up different. However, the low input threshold voltage, they are required to maintain at the level of 5 V.
It should Also be noted that the Zener diodes in the device are set quite often. Limit the frequency of their welcome at the level of 200 Hz. It is important to note that the accuracy of the readings depends on the coil inductance. The width of the transmittance of this element most often does not exceed 3 microns. Batteries for the model are selected with a capacity of up to 600 mAh. Enough about that the device worked continuously for 30 minutes.
High sensitivity how to make pinpointer their hands? To understand this question, it should be understood that the coil will need to build quite powerful. Low threshold voltage it must withstand at 20 V. it should Also be noted that the modulators in this case are only suitable for linear type. Accuracy also depends on the type of condensate.
In this situation, many experts suggest to use models of open type. The average parameter capacity of these elements is around 5 pF. However, in this situation, a lot depends on the manufacturer of the capacitors. If we talk about the Zener, it is used with high resistance. It is necessary to increase the sensitivity of the device. Batteries for this model should be selected with a capacity of at least 900 mAh.
To assemble pinpointer their hands Minimax-PP, need to pick up a beeper series РР20. It should also be noted that in devices of this type are the mechanisms of vibration. The indicators used varied. If we talk about the coil, it is used in this case is of orthogonal type. Input threshold voltage, this component must withstand at least 15 V. the resistance in the circuit must not exceed 4 Ohms.
The Sensitivity of this device largely depends on the capacitors. In the standard scheme there are two. One of them have mandatory installs next to the coil. The second is mounted at the output of the modulator. The main problem of these devices can be considered a small bandwidth at 2 MK. Due to this, the amplifiers used in the devices of this type are quite rare.
Going for this type of pinpointer with your hands (diagram shown below) is quite simple. In the first place for the device it is necessary to choose a good housing. The controller integrated type doesn't. If desired, it can be purchased at any store with the radio, and it costs very little. A distinctive feature of this element can be called good conductivity. Capacitors in this case are set two-electrode type. Parameter resistance they average around 2 Ohms.
It should Also be noted that the coil must be installed in the first place. It will have to use a blowtorch. Further is attached directly to the modulator. While in the back must be the battery. The amplifier in this case use impractical. Due to the fact that the sensitivity of the device is significantly reduced as a result of increasing the maximum frequency of the device.
Going with a multi-layer capacitors, pinpointer with your hands (diagram shown below) with the orthogonal coils. The modulators in this case fit linear and nonlinear types. Also note that in devices of this type are often mounted vibrating mechanisms. The beeper can be seen quite often.
To enhance the sensitivity of the device is often used Zener diodes. While especially popular nowadays are cardiodynia counterparts. To install them you will have to use a blowtorch. In General, it should be noted that models with multi-layered capacitors are universal and for domestic use are ideal. With their help, people can quite quickly learn the exact location of the wiring in the wall.
To Collect this type of pinpointer his hands is quite simple. These devices differ not only high accuracy but also good sensitivity. For professionals, the model will fit well. To assemble the device, you must commit the modulator. In this case, many experts recommend the use of linear analogues.
However, non-linear modifications are also common. Beeper in this case can be fitted behind the coil. Parameter input threshold voltage of the device should not exceed 20 V. With this aim compulsory Zener. The regulators in this case soldered at will. Late work will only fix the batteries.
To fold the device with a resonant controller, it is necessary to prepare in advance a blowtorch. In the first place for the instrument selected high-quality modulator. Many professionals in this situation, it is recommended to use the linear analogues. Find them in a store is difficult, but they should cost a little. On average, the parameter of conductivity they have equals 3 microns. Due to this, the input threshold voltage it is possible to hope at 15 V. the Zener devices are suitable for a variety of. Resistance maximum they are obliged to keep at the level of 5 Ohms. It should also be noted that the beeper device regulators not needed.
Set the coil in this case, it is advisable in the least. While wiring insulation should be given special attention. Also remember that the device must be completely sealed. With this purpose, alternatively, you can use the rubber gasket. Directly the controller needs to pripiats to the modulator. The capacitors used in this situation is mainly the field type. The minimum battery capacity required to reach 800 mAh.
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