This article discusses about Potentiometers, construction, working, its applications and also different types which include rotary and linear Potentiometer. Free Ebooks dc crompton potentiometer theory for download in PDF, MOBI, EPUB, HTML for Amazon Kindle and other Ebooks Readers. Potentiometers. Introduction. A Basic dc Potentiometer. Crompton’s dc Potentiometers. Applications of dc Potentiometers. AC Potentiometers.
| Author: | Mikadal Daidal |
| Country: | Botswana |
| Language: | English (Spanish) |
| Genre: | Video |
| Published (Last): | 5 February 2006 |
| Pages: | 169 |
| PDF File Size: | 6.26 Mb |
| ePub File Size: | 15.18 Mb |
| ISBN: | 491-5-97314-546-2 |
| Downloads: | 81054 |
| Price: | Free* [*Free Regsitration Required] |
| Uploader: | Akikree |
This potentiometer is supplied with a self standardization circuit built in, which renders This potentiometer uses the Kelvin Varley arrangement shown below. This does not mean, unfortunately, that small voltages can be read with assurance to 0. The following steps are used when making potenttiometer with the above potentiometer: Laboratory-type or DC Crompton’s Potentiometer: In order to operate the galvanometer at its maximum sensitivity provision is made to short the protective resistance when near the balance conditions.
As the balance or null point is approached, the protective resistance is shorted so as to increase the sensitivity of the galvanometer. Reasonably rapid changes in galvanometer the indication can be followed with ease which is impossible to take with conventional potentiometers.
The frompton circuit includes a set of compensating resistors R 1R 2. The single-range potentiometer shown above is frequently constructed to cover a range of 1.
These EMFs can be minimised only by special construction i. The figure below shows a separate standard cell dial incorporated in a single range potentiometer. This unit has been specially designed for hospitals and physiotherapy centers where the machine is required to run constantly for many hours to survive with the rush of patients. The selector switch S is put potetniometer the calibrate position and the rheostat is adjusted so that there is no current flowing through the galvanometer.
Call Send a quick message.
Crompton DC Potentiometer Calibration of PMMC Ammeter
The standardisation should be again checked after the completion of the measurement. The combination of dial resistors and the slide wire is set to the standard cell voltage. Amarnath Reddy I am a graduate in electrical engineering and potentiiometer by passion. The resistor has the uniform electrical resistance per unit length throughout its length.
Number of Employees 11 to 25 People. With the protective resistance in the circuit, poteniometer potentiometer is balanced by means of the main dial and the slide wire.
Potentiometer Working Principle of Potentiometer
After completion of standardisation, the switch ‘S’ is thrown to operate position thereby connecting the unknown emf into the potentiometer circuit. This condition is satisfied only when the pofentiometer battery current has the same value for each measuring range.
All modern potentiometers incorporate a separate standard cell dial circuit calibrating circuit.
The value of unknown emf is read off directly from the settings of the dial adjust slide wire. This completes the standardisation process for the potentiometer. The moving arm of middle dial carries two arms spaced two studs apart. View Contact Call Seller Now. Thus, potentiimeter products are widely used in diverse sectors such as laboratories, health care sector and medical institutions.
DC Crompton’s Potentiometer or Laboratory Type Potentiometer
Construction and Working of basic slide wire dc Potentiometers. The first dial measures upto 1. Find more suppliers in Faridabad Carbon Potentiometer in Faridabad. The output of the thermocouple is poyentiometer to the unknown emf terminals. Grab it now for very less price.
By adjusting this sliding end, a point like B is found where there is no current through the galvanometer, hence no deflection in the galvanometer. The operation of the duo range potentiometer may be more potentiomrter understood and analysed by redrawing in its simplified form by crompron the galvanometer and calibration standardising circuit.
Crompton Potentiometer Get Latest Price. Thus the galvanometer scale can be calibrated to read the out of balance emf directly. Chand ” is the best in industry. Single range potentiometer using independent calibrating circuit.
Crompton Potentiometer | R & Company | Manufacturer in Sadar Bazar, Ambala | ID:
The wide range of products offered by us is able to sustain the intense demand and competition of the markets due to potentiomster latest attributes and cost effectiveness. Call Send a quick message.
Get Best Price Request a quote. The vernier potentiometer reads to the increment of 0. Our company is devotedly engaged in supplying a wide assortment of Crompton Potentiometer that is designed using the latest technology. You can download cronpton article as pdf, ppt.
This potentiometer is provided with a double throw switch which allows the connection of either the standard cell or the unknown emf to be applied to the working circuit. This potentiometer is provided with an independent standardising circuit AD which can be set on any range potentipmeter standard cell emf from 1.
Get best deals for coconut. I agree to the terms and privacy policy. The switch S is thrown to the calibrate position and the galvanometer key is tapped while the rheostat is adjusted for zero deflection on the galvanometer. The two ranges are obtained by using two resistors R 1 and R 2 and a range selecting switch S. These difficulties to get accurate results mainly arise because of lack of uniformity of slide wire and the difficulties in maintaining the contacts in good shape.
Year of Establishment The slide-wire type of potentiometer described in the previous potebtiometer is not a practical form of construction. We take into account the latest trends and standards set by our domain and offer suitable range of products. The value of the unknown emf is obtained by adding the galvanometer reading to the main dial setting.