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A potmeter is a something that is used for measuring the rate of water uptake in a leafy shoot. The causes of water uptake are photosynthesis and transpiration.
Soz but this is all i got. i hopped there would be something on here but no. If any one has got more information about it ADD IT!!!
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What can you substitute a logarithmic potmeter with?
I would simply suggest taking a linear potmeter of approx a value 700% higher. Then connect a resistor of the original value +20% (approx) across linear pot middle and either side. This makes it working almost like the original logaritmic potmeter. If you want reverse log or dual log, then just connect the resistor to the other leg from middle, or halve the resistor value and connect both from the middle and to each side. If you are unsure how it works, then a spreadsheet provides you with abilities to simulate how it will work. Example of a "Linear Log Pot": A project I started on needed a reverse log taper of 10 K. This was nowhere to be found and I thought, lets cheat. I started with spreadsheet and put in a few formulas for parallell connection of resistors. I found that a 68K linear and a 12K resistor in parallell would give much the same performance curve as a logaritmic taper. It gives approx the same resistance and approx the same voltage (if used as a voltage divider) as a Log and reverse log taper.
What is the purpose of a potentiometer?
A potentiometer is a type of position sensor. They are used to measure displacement in any direction. Linear potentiometers linearly measure displacement and rotary potentiometers measure rotational displacement. Also known as a Potmeter or Pot, it consists of a resistive element called the track and a sliding contact called the wiper internally where end terminals are attached to the resistive element. They are used to accurately measure voltage and help achieve a variable voltage from a fixed-voltage source. Common Examples of Potentiometers are: Measuring Position on a gaming joystick Controlling audio equipment using volume controls
A potentiometer is used for?
A potentiometer is a type of position sensor. They are used to measure displacement in any direction. Linear potentiometers linearly measure displacement and rotary potentiometers measure rotational displacement. Also known as a Potmeter or Pot, it consists of a resistive element called the track and a sliding contact called the wiper internally where end terminals are attached to the resistive element. They are used to accurately measure voltage and help achieve a variable voltage from a fixed-voltage source. Common Examples of Potentiometers are: Measuring Position on a gaming joystick Controlling audio equipment using volume controls
