Why transistors are used in water level indicator?
When the water touches the metal contact in which base of each transistor is connected, a small current flows and turns on the transistor. When a transistor turns on, LED connected to it glows. Thus LEDs will be turned on depending up on the level of water. By using a relay we can also control the level of water.
Why BC547 transistor is used in water level indicator?
This indicates that the container is full. BC 547 is known as cheap and easy to use transistor which can be used to design a low-cost water level indicator. You can use this device in day to day life to detect the various levels in water in a container.
How does a water level indicator circuit work?
Water level indicators work by using sensor probes to indicate water levels in a storage tank. These probes send information back to the control panel to trigger an alarm or indicator. As mentioned above, the control panel can be programmed to automatically turn on your pump to refill the water again.
What are the components of water level indicator?
Required Components for Water Level Indicator
- 555 timer IC.
- Resistors (22K Ohm – 1, 570 Ohm – 1, 1K Ohm – 2)
- Capacitors (1 uF – 1)
- Connecting wires.
- Battery with Battery Snap Connector.
What is the use transistor?
transistor, semiconductor device for amplifying, controlling, and generating electrical signals. Transistors are the active components of integrated circuits, or “microchips,” which often contain billions of these minuscule devices etched into their shiny surfaces.
Which type of signal is used when the transistor is used as a switch?
With a positive signal applied to the Base of the transistor it turns “ON” acting like a closed switch and maximum circuit current flows through the device.
What is the meaning of BC547 in transistor?
BC547 is a Bipolar Junction Transistor, abbreviated as BJT. It is an NPN transistor. It has three terminals named as: Emitter. Collector.
What is the function of transistor BC548?
BC548 transistor is used for amplifying and switching purposes in electrical circuits. Like every other NPN transistor, it consists of three pins: the collector, base, and emitter.
How do you make a water level indicator step by step?
Connect the 9-volt battery to the water level indicator. Press the hexagon terminal of the battery connector onto the circular terminal of the battery and vice versa. Make sure that the battery connector is securely attached to the battery. Now that the battery is connected, your water level indicator is able to work!
What sensor is used in water level indicator?
Hydrostatic pressure level sensors are submersible sensors used for measuring the level of liquids (including corrosive liquids) in deep tanks or water in reservoirs. Pressure water level loggers provide accuracy and reliability across a wide range of applications.
How do you make a water level indicator?
Get all of the supplies that you need first such as LEDs, a buzzer, and sensing wires. Then build the circuit and attach the battery. Watch the LEDs light up as the water level rises and listen for the buzzer when the level gets too high!
What are the two main functions of a transistor?
Transistor Function So the two functions provided by transistors are switching of electronic signals and amplifying electronic signals.
What are the two main applications of transistor?
The core use of transistors include switching applications or both as amplification and switching.
What is the difference between BC107 and BC547?
It looks like the BC547 is a modern replacement for the BC107. They are packaged differently but otherwise look very similar in terms of electrical characteristics. They seem to have the same breakdown voltage; the BC547 seems to have slightly better cutoff frequency. The current gain has a very similar range.