Ditulis Oleh : YK69 Elektro
Judul : Rangkaian Pendeteksi (Sensor) Kelembaban Udara
Rangkaian Pendeteksi (Sensor) Kelembaban Udara
Dew ad- versely affects the normal per- formance of sensitive electronic devices. A low-cost circuit described here can be used to switch off any gadget automatically in case of excessive humidity. At the heart of the circuit is an inexpensive (resistor type) dew sensor element. Although dew sensor elements are widely used in video cassette players and recorders, these may not be easily available in local market. However, the same can be procured from authorised service centres of reputed companies. The author used the dew sensor for FUNAI VCP model No. V.I.P. 3000A (Part No: 6808-08-04, reference no. 336) in his prototype. In practice, it is observed that all dew sensors available for video application possess the same electrical characteristics irrespective of their physical shape/size, and hence are interchangeable and can be used in this project.
Skema Rangkaian Pendeteksi (Sensor) Kelembaban Udara
The circuit is basically a switching type circuit made with the help of a popular dual op-amp IC LM358N which is configured here as a comparator. (Note that only one half of the IC is used here.) Under normal conditions, resistance of the dew sensor is low (1 kilo-ohm or so) and thus the voltage at its non-inverting terminal (pin 3) is low compared to that at its inverting input (pin 2) terminal. The corresponding output of the comparator (at pin 1) is accordingly low and thus nothing happens in the circuit. When humidity exceeds 80 per cent, the sensor resistance increases rapidly. As a result, the non-inverting pin becomes more positive than the inverting pin. This pushes up the output of IC1 to a high level. As a consequence, the LED inside the opto-coupler is energised. At the same time LED1 provides a visual indication. The opto-coupler can be suitably interfaced to any electronic device for switching purpose. Circuit comprising diode D2, resistors R5 and R6 and capacitor C1 forms a low-voltage, low-current power supply unit. This simple arrangement obviates the requirement for a bulky and expensive step-down transformer.
Demikianlah Artikel dari kami yang berjudul Rangkaian Pendeteksi (Sensor) Kelembaban Udara,apakah anda menyukainya ? mudah-mudahan artikel ini bisa memberi manfaat untuk anda semua.
Anda sedang membaca artikel Rangkaian Pendeteksi (Sensor) Kelembaban Udara dan artikel ini url permalinknya adalah http://yk69.blogspot.com/2009/08/rangkaian-pendeteksi-sensor-kelembaban.html Artikel yang anda cari Lainnya bokep, video bokep, streaming bokep, streaming , videos, porn, videos porn, kimcil, bugil, telanjang, abg, mesum, tetek, memek, toket, masturbasi, bmf, download, perkosa, kepergok, mesum, pemerkosaan, kepergok mesum, download video porn, download video bokep, bokep terbaru, streaming bokep terbaru, jilbab, semok, ngentot, indo, janda, asia, orgasme, meki, sex, video sex, spg, streaming mesum, ml, tante, streaming abg, cabe cabean, cantik, manis, bokep indo, bokep cinta, streaming mesum, hot bokep, bokep hot, abg bugil, anak smp, bocah smp, anak sma, bocah sma, indonesia, 3gp'
0 Response to "Rangkaian Pendeteksi (Sensor) Kelembaban Udara"
Post a Comment