Views: 222 Author: Kim Publish Time: 2019-07-15 Origin: Site
Activa buzzer piezoelectricus sonor integralis electronic est quae DC intentione pollet ac late in electronicis productis adhibita est ut computatores, impressores, exscriptores, terrores, nugas electronicas, electronicas automotives, telephonicas, timers, etc. Instrumenta sonantia. Maxime buzzer in duo genera dividitur: buzzer piezoelectricus et buzzer magneticus .The buzzer piezoelectricus principaliter componitur ex multivibratore, a buzzer piezoelectricus , impedimento congruens fabrica, resonantia arca, armamentum externum et similia. Aliquae etiam buzzer piezoelectricus inhabitationes instructae sunt emisso diôde levi.
| Sonus pressura Level | 90 dB Min/10cm |
| Ratum Voltage VDC | 12V |
| Resonant Frequency | 3.5±0.5 kHz |
| Current at rated intentione | 15.0 mA Max. |
| Operans intentione | 3-20 Vdc |
| Operatio Temperature | -20°C - +70°C |
| Repono Temperature | -30°C - +80°C |
| Tonus Natura | Unius |
| Pondus | 4 |
| Domus materia | MPPO |
PRETIUM APPLICANDIS PRETIUM VOLTAGE (3200 Hz 1/2 OFFICIUM QUADRATURA)
PRETIUM APPLICANDIS (3200 Hz SINE FLUCTU MENSURA USUS 60μA)
(UNIT:MM) Tolerantia: ±0.2 mm
3.TESTING RATIONE
Vexillum Mensurae conditionibus
Temperature: 25±2℃ Umor: 45-65%
Characteres acustici:
In frequentia oscillationis, consummatio currentis et pressio soni metiuntur instrumentis mensuris infra demonstratis
In mensuratione test, buzzer sic ponitur:
4.FREQUECY CURVIUM
5.RELIABILITY test
| NO. | ITEM | Test conditio et necessitas |
| 1 | High Temperature Test (Repono) | Postea in conclavi collocari cum 70 2ºC 96 horis et deinde in conditione ordinaria per 2 horas collocari. Variatio licita SPL post test: +/-10 dB . |
| 2 | Low Temperature Test (Repono) | Ponatur in conclavi cum -30 2ºC per 96 horas, ac deinde in conditione ordinaria per 2 horas collocata. Variatio licita SPL post test: +/-10 dB . |
| 3 | Umor Test | Postquam positus in conclavi cum 90-95% RH ad 40 2ºC pro 96 horis, et tunc positus est in conditione normali per 2 horas. Variatio licita SPL post test: +/-10 dB . |
| 4 | Temperatus Cycle Test |  |
| 5 | Iacta Test | Iacta in ligno duro tabula 4cm crassa, directiones quaevis, 3 vicibus, in altitudine 75cm. Variatio licita SPL post test: +/-10 dB . |
| 6 | Vibratio Test | Post applicatam vibrationem amplitudinis 1.5 mm cum 10 ad 55 Hz globum vibrationis frequentiam ad singulas 3 directiones perpendiculares pro 2 horis. Variatio licita SPL post test: +/-10 dB . |
| 7 | Test solidabilitatem | Terminales plumbi sunt i mm in resina pro 5 secundis ersi et tunc i mm in thermis solidorum +300 5ºC pro 3 1 secundis .90% min. plumbi terminales solido madebunt (praeter marginem terminales). |
| 8 | Terminatio Fortitudo trahens Test | Vis 9.8N (1.0kg) singulis terminalibus applicata in directum axialem pro 10 secundis. Nulla visibile damnum et abscissio. |
CONDICIONE TEST.
CONDICIONE TEST.
Standard Test Condition: a) Temperature : +5 ~ +35℃ b) Umor : 45-85% c) Pressura : 860-1060mbar
Iudicium Test Condition: a) Temperature: +25± 2℃ b) Umor: 60-70% c) Pressura: 860-1060mbar
6.PACKING VEXILLUM
