Audio Technica AT880b User manual

User Manual
Contact Microphone AT880b
■Features
■Notes on use
■Specifications
Piezo Electric
Surface contact
20 - 5,000 Hz
72mV/G (-22.9dBV/G) at 500Hz
37g (Microphone)
25m long white (permanently attached to microphone)
•1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL
*Typical, A-weighted, using Audio Precision System One.
■Polarpattern ■Frequency response
Audio-Technica Corporation
2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan
©2017 Audio-Technica Corporation
Global Support Contact: www.at-globalsupport.com
16-MAR--2022 Form No.ATGC-L0409-22
Scale is 5 decibels per division
LEGEND
Thank you for purchasing this product. Before using the product, read through the user manual to
ensure that you will use the product correctly. Please keep this manual for future reference.
The AT880b is a waterproof Contact Microphone. It is suitable for sound pickup underwater or
collecting the sound of objects vibrating from a flat surface.
There is a high-sensitivity piezoelectric sensor inside, which is installed in a sturdy aluminum case
with good corrosion resistance and waterproof performance. The aluminum case of the AT880b is
thin in design, with a thickness of 10mm. It can be placed in small and narrow spaces for operation
and can be fixed and installed with screws.
The microphone is equipped with a 25m long cable, which is convenient for long-distance
installation. AT880b has a built-in preamplifier, which can deliver clear signals over long distances,
even when using equipment with low-impedance inputs.
The AT880b microphone requires 48V DC phantom power for operation.
Exposure of the microphone too high temperatures may result in a gradual and permanent reduction
in output level. Avoid leaving the microphone in the open sun or in areas where temperatures
exceed 43°C for extended periods.
For product improvement, the product is sublect to
modification without notice.
• Surface contact piezo microphone
• Can be used for multi-purpose such as underwater and flat vibration. The piezoelectric sensing
device is housed in a waterproof metal case
• Phantom powered with internal preamp for clear sound even with low impedance inputs and
long cable connections
• Permanent 25m cable and built-in dedicated power module for microphone
• Aluminum cutting case with corrosion and water resistance, the housing provides sensitive
vibration conductivity
• Low profile design, can be installed in small and confined spaces for concealment
• Equipped with mounting holes can be fixed with screws for security
Element
Polar pattern
Frequency response
Open circuit sensitivity
Weight
Cable
3-pin XLRM type (cable)Output connector
10mm x 53.4mm x 33mm (H x W x D)Dimensions
■Connection procedure
This product requires 48 V
DC phantom power.
Output terminals
PIN1 (ground)
PIN3
(cold)
PIN2 (hot)
Connect the output terminals of AT880b to a device that has a microphone input (balanced input)
compatible with a phantom power supply. The output connector is an XLRM-type with polarity as
shown in the figure below.
■Safety precaution
■Cautions for the product
Although this product was designed to be used safely, failing to use it correctly may result in an
accident. To ensure safety, observe all warnings and cautions while using the product.
• Do not subject the product to strong impact to avoid malfunction.
• Do not disassemble, modify or attempt to repair the product.
• Do not handle the product with wet hands to avoid electric shock or injury.
• Do not store the product under direct sunlight, near heating devices or in a hot place.
LEGEND
0°, 50cm
Response in dB
Frequency in Hertz
108 ohms
48V DC, 3.5 mA
Impedance
Phantom Power Requirements
PouchIncluded accessories
Dimensions
33
53.4
10
26
(Unit : mm)
2-Ø4.2
Ø19
Ø3.2
67
180°
150°
120°
30°
0°
330°
300°
270°
240°
210°
60°
90° 10 dB
200 1k 5k10020 500 2k50
10
0
-10
-20
-30
20
200Hz
1kHz

接触压电式话筒 AT880b
■ 规格
•
1 帕＝ 10 达因/平方厘米＝ 10 微巴＝ 94 dB SPL
*
典型，A 计权，使用 Audio Precision System One
因产品改进，本产品会随时改装，恕不另行通知。
■指向性 ■频率响应
Audio-Technica Corporation
2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan
©2017 Audio-Technica Corporation
全球支持联系：www.at-globalsupport.com
比例是每分隔线 5 分贝
用戶手冊
感谢您购买本产品。在使用产品之前，请全文浏览本用户手册以确保您将正确地
使用本产品。请妥善保存本手册，以供将来参考。
■产品特点
• 表面接触压电式话筒
• 能用于水中、平面震动等多用途话筒。在防水的金属盒内装有压电感测元件
• 使用幻象供电，内部设有前置放大器，即使输入端为低阻抗，而使用长电缆连接
也能传送清晰的信号
• 固定的25米长连接线规格，话筒内置专用的供电模组
• 铝质切割外壳，具有良好的抗腐蚀和防水性能，并能有灵敏的振动传导性
• 薄型设计，可放置在细小狭窄空间收音，以实现不显眼隐藏性
• 话筒设有安装孔，可以使用螺丝固定安装，以提高安全性
■使用注意事项
AT880b 是一款具防水性的接触式话筒，适用于水下收音或紧贴在平面上，接收物
件震动时产生的声音。
内部设有高灵敏度的压电感应器，装置在坚固的铝金属外壳机身中，具有良好的
抗腐蚀和防水性能。AT880b的金属外壳以薄型设计，厚度仅有10mm，能放置在
细小狭窄空间操作，并可以使用螺丝固定安装。
话筒配有长25米的连接线，方便于远距离的安装。话筒内部并设有前置放大器，
即使应用低阻抗输入端的器材，在长距离连接时也能传送清晰的信号。
AT880b话筒需使用48V幻象供电。
把话筒暴露于高温中可能导致输出电平逐渐及永久性减弱，应避免将话筒留在日
晒的地方或长时间置于温度超过43°C的地方。
16-MAR-2022 Form No.ATGC-L0409-22
180°
150°
120°
30°
0°
330°
300°
270°
240°
210°
60°
90°
响应单位是 dB
频率单位是赫兹
图例
0°，50 厘米
10 dB
200 1k 5k10020 500 2k50
10
0
-10
-20
-30
20
本产品使用直流 48V 幻象电源。
输出端子
针脚1（接地）
针脚3
（负）
针脚2（正）
■连接步骤
AT880b 內置供电模组，输出端子需连接到具有兼容幻象电源的话筒输入（平衡输
入）的设备。输出接口是 XLRM 型接口，其极性如下图所示。
■安全预防措施
■本产品注意事项
虽然本产品采用安全设计，但使用不当仍可能发生事故。为了确保安全，使用本
产品时请注意全部警告和提醒。
•切勿让本产品遭受强烈冲击，以避免发生故障。
•切勿拆开、改装或尝试维修本产品。
•切勿用湿手握持本产品，以免触电或受伤。
•切勿将本产品存放在阳光直射的地方、加热装置附近或者炎热的地方。
元件 压电感应式
指向性 表面接触
频率响应 20 - 5,000Hz
开路灵敏度 72mV/G (-22.9dBV/G) 于 500Hz
阻抗 108欧姆 (典型)
幻象供电 直流48V，3.5mA
重量 37克 (话筒)
尺寸 10mm × 53.4mm × 33mm (高×宽×深)
连接线
25米长白色连接线
输出接口 3 针 XLR-M 型 (连接线)
附带配件
收纳袋
尺寸
33
53.4
10
26
（单位：毫米）
2-Ø4.2
Ø19
Ø3.2
67
图例
200Hz
1kHz