We specialize in alarms for industry like: alarm horns, strobes, explosion proof strobes, LED andon lights, stack lights, light towers, speakers, horn strobes, amber beacons,explosion proof speakers, sirens, evacuation sirens, portable blasting horns, bells, process alarms, beacon lights, intercoms, rotating lights, led lights, flashing lights, beacons, hazardous area alarms, level alarms,status lights, buzzers, fire alarm strobes, fire alarm horns, hazard lights, and a great number of items not displayed in our web store. Please contact us for more information.
Physics Project Reports, Physics Projects CBSE, MBA Projects, Sample MBA Project Reports, Free Download MBA/BBA Projects, Final Training Report, MBA Project/Synopsis, Management Research MBA BBA Projects in HR-Marketing-Finance and Mphil. Thesis/Dissertations My Whats App: +646 Physics Project Report on Rain Alarm Project Report on Rain Alarm Rain Alarm: Introduction Rain Alarm is a device which is used to give the information is the rain is occurring as it gives sound when rain falls between the two aluminium rods. As the rain drop comes between the two rods the circuit gets completed and a sound is produced from the speaker indicating the falling of rain. It can be used in factories, open godowns where the goods need to be protected from rain.
It can also be used as a water level indicator by fixing the two rods at desired level when water will reach that level it will automatically produce sound. Working of Rain Alarm: The aluminium tubes (rain sensors) are fixed on plastic plate with a small distance between them. The plastic plate is immersed in water taken in a beaker. Presence of water between the aluminium tubes effects circuit adjustment. When switch P is closed current flows through the speaker and an audible note is produced. The alarm is on.
When water is removed from the beaker or the tubes are taken out of water, alarm becomes dead. When a rain alarm is set up according to circuit diagram and is connected to input A-C source then its working starts.
Since when there is no water droplet complete and speaker doesn’t produce sound. But as soon as rain starts water drop comes between the two rods the circuit gets completed and speaker starts giving sound. Construction of Rain Alarm: It consists of various components named below: (i) n-p-n transistor (BC 147) (ii) p-n-p transistor (2N 6107) (iii) Resistors (1.5 k W, 330 k W)—0.25 W (iv) Capacitor ceramic (0.01 mF) (v) Two rain sensors (aluminium tube of diameter 5 mm anbd length 6 to 7 cm) (vi) Speaker (5 to 8 W) (vii) Battery (6 V) (viii) Switch. Value of Resistances and their percentage accuracy are indicated on carbon resistance by a colour code printed on them. Colour Number Multiplier Colour Tolerance Black 0 100 Gold 8% Brown 1 101 Silver 10% Red 2 102 No Colour 20% Orange 3 103 Yellow 4 104 Green 5 105 Blue 6 106 Violet 7 107 Grey 8 108 White 9 109 In Series R = R 1 + R 2 + R 3.
Dec 15, 2011 Manual prosedur kerja sekolah menengah. Pelajaran Negeri* Persidangan Kebangsaan Pengetua Sekolah Menengah Malaysia. Contoh manual prosedur kerja sekolah menengah kebangsaan. Berikut adalah Manual Prosedur Kerja Sekolah Menengah Malaysia. NS Tempat ke 5 Peringkat Kebangsaan Pertandingan Mural. Contoh-Contoh Kertas Kerja. Terbitnya buku “Manual Prosedur Kerja dan Fail Meja” (Bagi Pembantu Makmal). OBJEKTIF SEKOLAH: Sekolah Menengah Kebangsaan Datuk Menteri.
In Parallel: 1/R = 1/R 1 + 1/R 2 + 1/R 3.
Rain Alarm System
Another brick in the wall song meaning. We specialize in alarms for industry like: alarm horns, strobes, explosion proof strobes, LED andon lights, stack lights, light towers, speakers, horn strobes, amber beacons,explosion proof speakers, sirens, evacuation sirens, portable blasting horns, bells, process alarms, beacon lights, intercoms, rotating lights, led lights, flashing lights, beacons, hazardous area alarms, level alarms,status lights, buzzers, fire alarm strobes, fire alarm horns, hazard lights, and a great number of items not displayed in our web store. Please contact us for more information.
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