METRIX振動(dòng)速度傳感器和振動(dòng)加速度計(jì)產(chǎn)品介紹
一、振動(dòng)速度傳感器 / Seismic Velocity Sensors
什么是速度傳感器？ / What Are Velocity Sensors?
速度傳感器是一種用于測(cè)量距離隨時(shí)間變化的設(shè)備。隨著振動(dòng)幅度增加，傳感器的輸出增加。速度傳感器也有各種形狀、尺寸、靈敏度級(jí)別和技術(shù)。它們通常用于測(cè)量移動(dòng)物體的速度，例如車輛或機(jī)械。
A velocity sensor is a device used to measure the change in distance over time. As the vibration amplitude increases, the output of the sensor increases. Velocity sensors are also available in a variety of shapes, sizes, sensitivity levels, and technologies. They are commonly used for measuring the speed of moving objects, such as vehicles or machinery.
速度傳感器如何工作？ / How Do Velocity Sensors Work?
有兩種不同類型的速度傳感器——固態(tài)和動(dòng)圈式。固態(tài)速度傳感器實(shí)際上使用加速度計(jì)以及集成電路和放大器，產(chǎn)生與傳感器看到的速度成比例的輸出。
動(dòng)圈速度傳感器由兩個(gè)主要部件組成 - 動(dòng)圈和永磁體，線圈在永磁體的磁場(chǎng)中移動(dòng)并產(chǎn)生自己的能量。任何給定的振動(dòng)輸入都會(huì)引起發(fā)電機(jī)動(dòng)作（電動(dòng)勢(shì)），產(chǎn)生電壓，該電壓與傳感器的輸入速度成正比。
There are two different types of velocity sensors – solid state and moving coil. The solid-state velocity sensor actually uses an accelerometer along with an integration circuit and an amplifier that produces an output proportional to the velocity seen by the sensor.
A moving coil velocity sensor is made up of two main components - a moving coil and a permanent magnet in whose magnetic field the coil is moving and generating its own power. Any given vibration input will induce generator action (electromotive force) producing a voltage, which is proportional to the input velocity of the sensor.
5485C 高溫速度傳感器 / 5485C High Temp. Velocity Sensor
這是一款動(dòng)圈速度傳感器，專為表面溫度高達(dá) 375°C 的機(jī)械應(yīng)用（如工業(yè)燃?xì)廨啓C(jī)）而設(shè)計(jì)。它可以自行生成信號(hào)，無(wú)需外部電源，并且由于其零摩擦線圈懸架而可以提供高精度的振動(dòng)測(cè)量。其不銹鋼外殼使其經(jīng)久耐用，因此無(wú)需擔(dān)心經(jīng)常更換。大多數(shù)標(biāo)準(zhǔn)燃?xì)廨啓C(jī)都提供該傳感器的安裝兼容性。
This is a moving-coil velocity sensor designed for machinery applications with surface temperatures up to 375 C like industrial gas turbines. It self-generates a signal, requiring no external power source, and can provide highly accurate vibration measurements because of its zero-friction coil suspension. Its stainless-steel case makes it long-lasting, so there is no worry about replacing it often. Most standard gas turbines provide mounting compatibility for this sensor.
SV6300 壓電速度傳感器 / SV6300 Piezo-Velocity Sensor
該傳感器與SA6200A類似，但具有內(nèi)部集成電路，可提供與速度而不是加速度成正比的輸出。它適用于大多數(shù)通用機(jī)械監(jiān)控應(yīng)用。該傳感器旨在取代動(dòng)圈裝置，動(dòng)圈裝置的運(yùn)動(dòng)部件不能始終安裝在任何軸上。傳感器由隔離的不銹鋼外殼保護(hù)。該器件與振動(dòng)監(jiān)測(cè)系統(tǒng)、電子開關(guān)和 4-20mA 信號(hào)調(diào)節(jié)器兼容。
This sensor is similar to SA6200A, but with an internal integration circuit that provides an output directly proportional to velocity instead of acceleration. It is appropriate for most general-purpose machinery monitoring applications. This sensor is designed to replace moving coil devices, which have moving parts that cannot always be mounted on any axis. The sensor is protected by an isolated stainless-steel casing. The device is compatible with vibration monitoring systems, electronic switches, and 4-20mA signal conditioners.
二、振動(dòng)加速度計(jì)傳感器 / Seismic Accelerometer Sensors
什么是振動(dòng)加速度計(jì)？ / What Are Seismic Accelerometer Sensors?
振動(dòng)加速度計(jì)的功能是測(cè)量作用在物體上的力引起的加速度變化，比如旋轉(zhuǎn)或往復(fù)式機(jī)器。它旨在測(cè)量機(jī)器或其他結(jié)構(gòu)的外殼振動(dòng)。
產(chǎn)生的電荷與施加在機(jī)器或結(jié)構(gòu)上的力產(chǎn)生的加速度成正比。在旋轉(zhuǎn)和往復(fù)式機(jī)器中，力是內(nèi)部的，用加速度計(jì)測(cè)量外殼運(yùn)動(dòng)。
加速度計(jì)可以測(cè)量動(dòng)態(tài)或靜態(tài)加速度。動(dòng)態(tài)加速度是在振動(dòng)的旋轉(zhuǎn)或往復(fù)機(jī)器上測(cè)量的。靜態(tài)加速度更可預(yù)測(cè)且恒定。重力是靜態(tài)加速度的一個(gè)例子。
The function of a seismic accelerometer is to measure the change in acceleration resulting from the forces that are working on an object, in our case rotating or reciprocating machines. It's designed to measure the casing vibration of a machine or other structures.
A charge is generated that is proportional to the acceleration resulting from the force that is exerted upon the machine or the structure. In rotating and reciprocating machines, the forces are internal, and we measure the casing motion with accelerometers.
Accelerometers can measure either dynamic or static acceleration. Dynamic acceleration is what measure on a rotating or reciprocating machine that is vibrating. Static acceleration is more predictable and constant. Gravity is an example of a static acceleration.
三種不同類型的加速度計(jì)是壓電式、壓阻式和電容式：
? 壓電加速度計(jì)傳感器非常靈敏，并且在測(cè)量沖擊或振動(dòng)方面最有效。Metrix 使用這些類型的傳感器是因?yàn)樗峁┝藴?zhǔn)確且寬的頻率響應(yīng)。
? 壓阻式加速度計(jì)傳感器的靈敏度較低，并且會(huì)根據(jù)所經(jīng)歷的壓力而提高電阻。
? 電容式傳感器通過(guò)測(cè)量電容的變化來(lái)測(cè)量物體的加速度。
The three different types of accelerometers are piezoelectric, piezoresistive and capacitive:
? Piezoelectric accelerometer sensors are quite sensitive and most effective in measuring shock or vibration. Metrix uses these types of sensors because it provides an accurate and wide frequency response.
? Piezoresistive accelerometer sensors are less sensitive and raise their resistance in response to the pressure they experience.
? Capacitive sensors measure changes in electrical capacitance to measure the acceleration of an object.
SA6200A API 670 加速度計(jì) / SA6200A API 670 Accelerometer
滿足 API 670 要求的通用加速度計(jì)。設(shè)計(jì)用于各種機(jī)器類型，其頻率響應(yīng)范圍為 0.5 至 10 kHz (+/- 3dB)，重量范圍為 50g，安裝諧振為 13 kHz。
General purpose accelerometer that meets API 670 requirements. Designed for use on a wide variety of machine types with its broad frequency response of 0.5 to 10 kHz (+/- 3dB), 50g range, and mounted resonance of 13 kHz.
SA6200UW水下加速度計(jì) / SA6200UW Underwater Accelerometer
Metrix SA6200UW 水下加速度計(jì)專為持續(xù)或頻繁暴露于高水平冷凝濕度的應(yīng)用而設(shè)計(jì)，例如冷卻塔結(jié)構(gòu)。它具有模制一體式電纜和 IP68 防護(hù)等級(jí)，適合連續(xù)浸沒(méi)。
A built-in amplifier provides a 100mV/g low-impedance, constant-current output that is compatible with vibration monitoring systems, electronic switches, and 4-20mA signal conditioners.
SA6350 高溫加速度計(jì) / SA6350 High-Temperature Accelerometers
Metrix SA6350高溫加速度計(jì)適合在高達(dá) 325℃的溫度下使用。它專為燃?xì)廨啓C(jī)和其他需要加速度信號(hào)的表面溫度較高的機(jī)械而設(shè)計(jì)。
The Metrix SA6350 High-Temperature Accelerometer is suitable for use in temperatures up to 325C. It is designed for gas turbines and other machinery with high surface temperatures where an acceleration signal is desired.
SA6210薄型加速度計(jì) / SA6210 Low-Profile Accelerometer
Metrix SA6210 薄型加速度計(jì)采用側(cè)面引出電纜連接，使其可以在不適合頂部引出電纜設(shè)計(jì)的物理受限位置使用。
The Metrix SA6210 Low-Profile Accelerometer uses a side-exit cable connection that allows it to be used in physically constrained locations where a top-exit cable design will not fit.
SA6250 高頻加速度計(jì) / SA6250 High-Frequency Accelerometers
SA6250使用內(nèi)置放大器提供100mV/g低阻抗恒流輸出，與振動(dòng)監(jiān)測(cè)系統(tǒng)、電子開關(guān)和4-20mA信號(hào)調(diào)節(jié)器兼容。
The SA6250 uses a built-in amplifier to provides a 100mV/g low-impedance, constant-current output that is compatible with vibration monitoring systems, electronic switches, and 4-20mA signal conditioners.
SA6200加速度計(jì) / SA6200 Accelerometer
Metrix SA6200 加速度計(jì)能夠感應(yīng)各種振動(dòng)頻率，這使其非常適合在各種機(jī)器上使用。
內(nèi)置放大器提供 100mV/g 低阻抗恒流輸出，與振動(dòng)監(jiān)測(cè)系統(tǒng)、電子開關(guān)和 4-20mA 信號(hào)調(diào)節(jié)器兼容。
The Metrix SA6200 Accelerometer is capable of sensing a wide range of vibration frequencies, which makes it ideal for use on a variety of machines.
A built-in amplifier provides a 100mV/g low-impedance, constant-current output that is compatible with vibration monitoring systems, electronic switches, and 4-20mA signal conditioners.
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