最近搜索

    Capacitive, Magnetic and Piezo Switches

    Capacitive, Magnetic, and Piezo Switches are types of electronic switches that operate based on different principles. Let's explore each of them:

    1. Capacitive Switches: Capacitive switches use the principle of capacitance to detect touch or proximity. They typically have a touch-sensitive surface that acts as one plate of a capacitor, while the other plate is usually a ground plane or a separate electrode. When a conductive object, such as a finger, comes close to or touches the touch-sensitive surface, it changes the capacitance, which is then detected by the switch's electronics. Capacitive switches are commonly used in touchscreens, touch-sensitive buttons, and proximity sensors.
    2. Magnetic Switches: Magnetic switches, also known as magnetic reed switches, use the presence or absence of a magnetic field to control the switch's operation. They consist of two metal reeds that are hermetically sealed within a glass tube. Each reed contains magnetically sensitive material. When a magnetic field is applied near the switch, the reeds are attracted to each other, and the switch closes, allowing current to flow. When the magnetic field is removed, the reeds separate, and the switch opens. Magnetic switches are often used in applications such as security systems, door and window sensors, and proximity sensors.
    3. Piezo Switches: Piezo switches utilize the piezoelectric effect to convert mechanical stress or pressure into an electrical signal. They consist of a piezoelectric material, such as certain crystals or ceramics, that generates an electric charge when subjected to mechanical deformation. When pressure or force is applied to the switch, it causes the piezoelectric material to deform, generating an electrical signal. This signal can be used to trigger a switching action. Piezo switches are commonly found in applications where a robust and reliable switch is required, such as industrial control panels, medical equipment, and automotive applications.

    Each type of switch has its own advantages and limitations. Capacitive switches offer touch-sensitive and non-mechanical operation but may be affected by moisture or dirt. Magnetic switches are highly reliable and can operate in harsh environments but require the presence of a magnetic field. Piezo switches are durable and can withstand high forces, but they require mechanical pressure to operate and are typically more expensive.

    1043 產品顯示為 Capacitive, Magnetic and Piezo Switches

    1 53
    • RS庫存編號 905-8916
    • 製造零件編號 MDSR-10-15-20
    个 (以毎袋:5)
    HK$9.86
    • RS庫存編號 909-2689
    • 製造零件編號 RI-90
    个 (以毎袋:10)
    HK$21.97
    • RS庫存編號 188-0495
    • 製造零件編號 OHD5R-100B
    个(每套 100)
    HK$41.23
    • RS庫存編號 188-0459
    • 製造零件編號 OHD3-80M
    个(每套 100)
    HK$39.197
    • RS庫存編號 118-7120
    • 製造零件編號 VDA200H/5-15
    HK$114.60
    • RS庫存編號 265-2235
    毎盒:500 个
    HK$8,122.40
    • RS庫存編號 909-2705
    • 製造零件編號 GC2522 (10-20AT)
    个 (以毎袋:10)
    HK$11.91
    • RS庫存編號 362-2518
    • 製造零件編號 RI-03A
    HK$6.80
    • RS庫存編號 244-2285
    • 製造零件編號 TLE49646MXTSA1
    个(每托盘 5 )
    HK$4.14
    • RS庫存編號 188-0818
    • 製造零件編號 OHD3-40M
    HK$58.60
    • RS庫存編號 905-8875
    • 製造零件編號 Flex-14-15-20
    个 (以毎袋:5)
    HK$7.86
    • RS庫存編號 362-2530
    • 製造零件編號 2502-2722-020
    HK$14.60
    • RS庫存編號 765-9343
    • 製造零件編號 AS201901
    HK$30.70
    • RS庫存編號 161-5760
    • 製造零件編號 CG211525
    个(每托盘 5 )
    HK$48.60
    • RS庫存編號 691-9575
    • 製造零件編號 PBARZAF0000C3A
    HK$605.40
    • RS庫存編號 765-1185
    • 製造零件編號 IHSR36F6
    HK$595.21
    • RS庫存編號 737-3774
    • 製造零件編號 HTWM-1B12A22
    HK$1,023.10
    • RS庫存編號 691-9534
    • 製造零件編號 PBAR2AF3000L0G
    HK$566.80
    • RS庫存編號 613-8202
    • 製造零件編號 MMPSM
    HK$25.00
    • RS庫存編號 205-8739
    • 製造零件編號 CPB1210000KGSC
    HK$502.60
    每頁顯示的結果