This done shunt the potentiometer around the A battery and run a wire from the movable contact of it (the potentiometer) over to the 18 volt tap, (see B, Fig.
Don't connect a potentiometeracross the B battery or it will speedily run down.
With a vacuum tube detector, and especially with one having a gas-content, a potentiometer is very necessary as it is only by means of it that the potential of the plate of the detector can be accurately regulated.
The potentiometer must never be shunted around the B battery or the latter will soon run down.
By means of a potentiometer the galvanometer spot may be brought back to the original position.
The torsional vibration was accomplished in a quarter of a second, and the contact with the potentiometer circuit was also made for the same length of time.
As the responses are on variation of current of injury, and as the current of injury may be strong, and throw the spot of light beyond the recording surface, a potentiometer balancing arrangement may be used (fig.
The battery contact in the main potentiometer circuit was made for a quarter of a second as just mentioned and a record taken of the effect of a short-lived E.
This was balanced by a potentiometer arrangement, so that the galvanometer spot came to zero.
It is well for the user to open up the potentiometer and make himself familiar with its interior construction, in order to fully understand the operation of the rheostat and other parts.
These resistances are so chosen that in order to determine the current passing through the shunt, after having obtained a potentiometer balance it is only necessary to multiply the potentiometer reading by a simple factor.
When used with any cadmium cell, the potentiometer is direct reading.
The circuit arrangement is a method of sub-dividing the main potentiometer wire, MNOPQ, so as to provide for very accurate reading.
When both plugs are in, the rheostat slide wires are in series with the potentiometer circuit.
To measure high voltages it is necessary to connect the voltage across high resistance and to measure on the potentiometer a definite fraction of the total drop.
This allows the potentiometer to be used for pressure measurements up to 16 volts without the use of a volt box.
The rheostat is mounted in the end of the potentiometer as shown in fig.
When the potentiometer is not in use, the hood should be screwed all the way down, and the lid put in place to exclude dust.
There are no contact resistances in the potentiometer circuit proper.
The potentiometeris connected to the shunt through the posts marked P.
In order to determine if the current flow through the potentiometer be exactly .
The potentiometer reading is taken as above and multiplied by a factor depending upon the position of the switch M, which factor is indicated upon the box.
Rough adjustment of the potentiometer current is made by means of the variable resistance R.
The principle of each is described in the succeeding paragraphs, in which the assumption is made that the reader already understands the potentiometer principle as described above.
The polarity of this is in opposition to the polarity of the thermo-couple which connects into the potentiometer at D and at G.
The variable known weights are units separate from the scales, but the potentiometer provides its own variable known electromotive force.
In other words, the slider D is moved along its scale until it corresponds to the known temperature of the cold end and then the potentiometer is balanced by moving the slider G.
The potentiometer may have either of two very simple devices for this purpose.
It is connected at two points C and D to the potentiometer circuit whenever the potentiometer current is to be standardized.
The potentiometer is the electrical equivalent of the chemical balance, or balance arm scales.
Figure 107 shows the wiring of the potentiometer in its simplest form.
It is connected with the main circuit of the potentiometerat the fixed point D and the point G.
Seaton advanced the potentiometer still farther, and the brain picture waxed and waned, strengthened and faded.
It faded out as the unknown exerted himself to withstand that poignant inquisition, only to come back in, clearer than before, as Seaton advanced the potentiometerstill farther.
The homodromous current was gradually reduced to zero by the appropriate movement of the potentiometer slide.
A necessary precaution is to increase the current gradually by means of a suitable potentiometer slide, to its full value.
In order to avoid the excitatory effect of sudden application, the applied current should be increased gradually; this was secured by means of a potentiometer slide.
A, 1900; Thomson-Varley Potentiometerand Binary Scale Box: Callendar and Barnes, Phil.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "potentiometer" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: indicator; instrument; meter; parts; radar
