Capacitance Transducer?
969454
You can make such a graph yourself if you know the capacitance at one displacement.\n\nFor parallel plate capacitance transducers, capacitance is inversely proportional to the distance between the transducer plate and a nearby conductive "ground" plane. This is an hyperbolic function of separation that goes to infinity as the separation approaches zero. So, if you reduce the separation to   one-half what it was initially, the capacitance will double. Reduce the separation to half of that new distance and the capacitance doubles again. And so on, until the plates are too close together to hold off whatever voltage is applied across the plates to measure the capacitance.\n\nStrictly speaking, this formula only applies to plates with infinite surface area. Real plates will have a "fringe effect" at their edges that will prevent them from obeying the inverse distance separation rule perfectly, but this becomes less of a factor for small displacements about a nominal initial "zero" position. Even though the actual capacitance versus separation relationship is hyperbolic, a small enough segment of any curve is approximately linear.\n\nSee the site for a fairly clear practical discussion of capacitors.
1106411
There are a lot of options... I'm assuming you are looking for a low power ADC, here's one (8-pin DIP):\n\nhttp://rocky.digikey.com/scripts/ProductInfo.dll?Site=US&V=296&M=TLC4541ID\n\nI don't know what number of bits or features you need, but you can use this search to find what you need:\n\nhttp://www.digikey.com/scripts/DkSearch/dksus.dll?Criteria?Ref=102166&Site=US&Cat=34013738
100168
Are you looking for something like this?  It analyzes the mic input to your PC's sound card.  You can use it as a spectrum analyzer or oscilliscope.\n\nhttp://downloads-zdnet.com.com/Wavetools/3000-2169_2-10412688.html?tag=lst-0-6
58713
Measure its capacitance.  Many multimeters have this capability.  If the body is not a two-terminal device (e.g., a capacitor), measure the capacitance from the body to a ground plane.  Then measure its voltage with a very high-impedance voltmeter.  The act of measuring will drain off some charge, so you have to take a reading quickly.  The charge in Coulombs is V*C, where V is voltage in volts, C is capacitance in Farads.
1079206
easy!!!all you need to do is put the transducer in a heavy duty plastic bag fill this with fresh water,secure the bag in a below waterline position inside the boat so the transducer is pointing downwards,make sure the bag is not leaking!switch on !!!he presto it will all work.....no problems!!!i have used this system for years,and sailed from the UK to s.Ireland the Baltic to the med.belive me its inexpensive and works.enjoy your sailing.regards "spud"
567372
You need a decibel meter
278175
PicoFarads. It is a measurement of capacitance.
366891
Probably just connecting it through an input transformer with a 150 ohm input (mike) to at least 10K ohms ('puter) output would suffice.
797986
This is a very simple circuit.\nhttp://www.rason.org/Projects/fmkeyer/fmkeyer.htm
475454
he discovered the capacitor and defined capacitance.\nhe gave the formula.\nCHARGE(Q)=C(capactiance)* voltage(v)\nthe unit for measuring capacitance of a capacitor is FARAD.\ncapacitor is a linear component that stores charge.\nit consist of two metal plates separated by a dielectric material eg->glass,mica,fibre..etc,\n\ncapacitance of a capacitor is 1 farad if it can store a charge of  1 coloumb when i volt of current flows through it.
898015
Nominal= 36ohms\nTolerance=5% \nMultiply nominal by .05 , then add that figure to nominal for Max,.subtract it from nominal for Min.,,and study your ohm's LAW!! ;-)=
1097336
solenoid connected to a timing capacitor, cutting of the connection until another quarter is entered. \n\nsupport hallitubes: http://www.hallisystem.bravehost.com
319402
A transducer is a device, usually electrical or electronic, that converts one type of energy to another. Most transducers are either sensors or actuators.\n\nTypes are:\nElectrochemical - Battery\nElectromechanical - Circuit Breaker\nElectroacoustic - Gramaphone\nPhotoelectric - Laser Diode\nElectromagnetic- fluorescent lamp\nElectrostatic - LCD\nThermoelectric - Thermo Couple\nElectronic - Diode\nElectrical - Transformer\nMechanical - Gears
712591
Here's an idea. Make one that will shock people(low voltage) when they ring your bell. ;-)
1134878
They're essentially the same.  \n\nIf there is a small difference it is that the sensor is the device that converts a physical quantity to another (usually electric, like a microphone convert sound to voltage).  The transducer might be a device that contains a sensor and further converts the electricity to a more useful and interpretable value (e.g. a microphone might produce a tiny voltage and there may be an amplifier to make it a larger signal, making it less sensitive to noise and so forth).\n\nANyway, I hear the two used interchangeably all the time.
631375
Hi\nhave a look at the following link:\n\nhttp://en.wikipedia.org/wiki/Digital_to_analog_converter\n\nThanks
867378
A way to make sure the capacitance doesn't change with temperature.  This can be done by selecting a suitable dialectric material to make the capacitor, as with "NP0" capacitors (NP0 means "negative-positive zero," meaning no - or + temp. coefficient).  One could also design a circuit to compensate for capacitance changes due to temp, such as, using a thermistor and transistor to provide a voltage that varies with temperature, and applying it to a vari-cap placed in parallel with the capacitor.