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Piezo Vibration Sensor MEAS 壓電式振動感測器 LDT0-028K

NT$143 NT$114 未稅

Piezo Vibration Sensor  MEAS 壓電式振動感測器 LDT0-028K

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貨號: SEN-09196(B3-7) 分類: 標籤: , , , ,
  • 商品說明

商品說明

Piezo Vibration Sensor  MEAS 壓電式振動感測器 LDT0-028K

購買下載 Arduino 範例碼

LDT0-028K 是一種柔性元件,包括28微米厚的壓電PVDF聚合物薄膜,帶有絲網印刷的Ag墨水電極,層壓到0.125毫米聚酯基板上,並配有兩個壓接觸點。
當壓電薄膜從機械中性軸偏移時,彎曲在壓電聚合物內產生非常高的應變,因此產生高電壓。當組件通過直接接觸偏轉時,該器件充當靈活的“開關”,並且所產生的輸出足以直接觸發MOSFET或CMOS級。如果組件由其觸點支撐並且留在“自由空間”中振動(夾緊/自由樑的慣性產生彎曲應力),則該裝置將表現為加速度計或振動傳感器。通過夾緊增加質量或改變元件的自由長度可以改變傳感器的諧振頻率和靈敏度以適應特定應用。通過將質量偏離中心來實現多軸響應。 LDTM-028K是一種振動傳感器,其中傳感元件包括由附加質量加載的懸臂梁,以在低頻下提供高靈敏度。

Piezo Vibration Sensor MEAS 壓電式振動感測器 LDT0-028K
特徵
焊接標籤連接
兩者都沒有質量和質量版本
可承受高衝擊力
工作溫度:0°C至85°C
儲存溫度:-40°C至85°C
更高溫度版本可達125°C
可在自定義基礎上使用

應用
洗衣機中的振動傳感
低功耗喚醒開關
低成本的振動傳感
汽車報警器
身體運動
安全系統

The LDT0-028K is a flexible component comprising a 28 μm thick piezoelectric PVDF polymer film with screen-printed Ag-ink electrodes, laminated to a 0.125 mm polyester substrate, and fitted with two crimped contacts.

As the piezo film is displaced from the mechanical neutral axis, bending creates very high strain within the piezopolymer and therefore high voltages are generated. When the assembly is deflected by direct contact, the device acts as a flexible “switch”, and the generated output is sufficient to trigger MOSFET or CMOS stages directly. If the assembly is supported by its contacts and left to vibrate “in free space” (with the inertia of the clamped/free beam creating bending stress), the device will behave as an accelerometer or vibration sensor. Adding mass, or altering the free length of the element by clamping, can change the resonant frequency and sensitivity of the sensor to suit specific applications. Multi-axis response can be achieved by positioning the mass off center. The LDTM-028K is a vibration sensor where the sensing element comprises a cantilever beam loaded by an additional mass to offer high sensitivity at low frequencies.

Features
  • Solder tab connection
  • Both no mass & with mass version
  • Withstands high impact
  • Operating temperature: 0°C to 85°C
  • Storage temperature: -40°C to 85°C
  • Higher temperature version up to 125°C
  • available on a Custom Basis
Applications
  • Vibration sensing in washing machine
  • Low power wakeup switch
  • Low cost vibration sensing
  • Car alarms
  • Body movement
  • Security systems

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