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- Model 3500 16-Channel Extracellular Differential Amplifier微电极放大器
- CHINA
- 2026年01月05日
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- 详细信息
- 文献和实验
- 技术资料
- 库存：
100
- 国食药监械注册号：
无
- 保修期：
12个月
- 现货状态：
15天
- 供应商：
玉研仪器公司
微电极放大器，是高增益AC/DC微分放大器，可用于低噪声的可兴奋组织的细胞外记录、EEG、EKG等记录。
Model 1800型 微电极放大器
2道交流放大器，相当于2台放大器
探头适用于高阻抗玻璃或金属电极的细胞外记录和刺激
低噪声：1.0μV（peak-peak）
输入阻抗：1011Ω
增益：100、1,000、10,000
具有低通、高通滤波以及50/60Hz带阻滤波
电压输出范围：±8V
根据需求，还有其他多个型号可供选择：
Model 3000 微电极放大器
单道交流放大器
选择Stimulus模式，外部刺激器可输入刺激信号
Recording模式和Stimulus模式都可通过计算机控制
输入阻抗：1015Ω
增益：50-10,000
电容补偿：4-50pF
具有低通、高通滤波和带阻滤波
直流失调电位补偿：±250mV
体积小，可放置于屏蔽网内
噪声：1.8µV, p-p（10Hz-10kHz); 0.1fA/Hz
Model 1700型 微电极放大器
4道微分交流放大器，相当于4台放大器
低噪声：1.0μV（peak-peak）
输入阻抗：1011Ω
增益：100、1,000、10,000
具有低通、高通滤波以及50/60Hz带阻滤波
电压输出范围：±8V
Model 3500型 微电极放大器
13 gain settings from x2 to x20,000
8 high-pass filter settings from 0.3 Hz to 500 Hz
8 low-pass filter settings from 100 Hz to 20.0 kHz
TTL Control of instrument mode
Twin stimulation busses to pass current
Channel Monitors
Built-In Calibration signal
Common Reference Bus
Blanking
PC control capability
MATLAB® and LabVIEW SDK and drivers available
3U rackmount enclosure accommodates all 16 channels
Model 3500 Control Software
The Model 3500 is supplied with optional Windows control software. This software controls all features of the amplifier via a USB port (cable included).
The program also enables the storage of an unlimited number of 16-Channel parameter files, as well as provides a real-time notepad that logs changes in parameter settings or experimenter-added notations.
电刺激器
电刺激是生理药理常用的实验方法之一。刺激仪功能的强弱、方波设定范围的宽窄、波形的好坏、使用方便与否是实验成败的关键。
9A型刺激仪为多用途方波刺激仪，输出的电压范围宽，可达 200V，具有限流保护功能，限制电流可调，最大输出电流为 4mA，刺激输出与控制电路完全隔离，可通过参数设定，定制多种类型的输出方波，输出可通过开关触发，也可通过外接输入信号触发，在外接输入信号触发时可设为延时输出，延时时间可调，输出的方波包括：正脉冲、正脉冲+延时+负脉冲、正脉冲+负脉冲三种波形，输出的脉冲数可调，输出过程电压可随意调整，能适合生理、药理等各类实验的需要。
仪器采用液晶面板，中文显示当前输出参数，非常直观，可存储 8 个设定的波形参数，方便了实验人员的操作。
型号：9A 型
主要特点：
1．双向脉冲：双向脉冲解决了长时间用一种极向刺激使电极周围产生极电解反应的问题，从而保护了与电极接触的神经、肌肉、血管等组织，减轻了组织极化效应。
2．高电压：高电压可用于对动物的强刺激，如惊厥、激怒、刺痛和对大动物的刺激，如猪、狗、猴、兔等，解决了一些生物信号采集处理系统刺激电压较低的问题。
3．限电流：其一保护刺激对象不受大电流伤害，二保护仪器不过流损坏，当输出电流超过限流值时仪器自动降低脉冲幅度，使电流不超过设定值。
4．梯度增压：当设定为连续波变化输出模式时，输出将按设定的基础值和递增间隔时间以及增量电压自动增压输出，用于刺痛和激怒实验非常方便。
5．外触发输出：外触发输出是在给外部输入一个脉冲信号或一组脉冲信号时在输出端输出一个或一组同极性的信号，因其输出电压和电流是可调的，从而起到了信号放大和波形整形的作用。
主要技术指标：
· 方波输出形式：正脉冲
· 正脉冲+延时+负脉冲
· 正脉冲+负脉冲
· 方波输出类型：
单波输出
单波断续输出
连续波输出
连续波断续输出
连续波变压输出
外方波输入、变压变流输出
· 方波参数：电压：2～200V，增量为 1V
· 电流：0．01～2．00mA 可调限流
· 增量为 0．01mA
· 波宽：50μs～4．99999s 误差<±2μs
· 间隙：50μs～4．99999s 误差<±2μs
· 触发延时：0 或 20μs～4．9999s 误差<±2μs
· 触发信号电压：±2～12V
· 间断：1ms～999．999s
· 有 8 个存储设定，可设定成最常用的 8 种方波输出形式。带同步输出接口。
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-2, because of its importance in tumour metastasis and a large database of MMP substrates with which to benchmark this new approach. However, the concepts can be applied to any extracellular or cell membrane protease. Generating differential metabolically labelled proteomes
Protein Microarrays for Identification of Novel Extracellular Protein‐Protein Interactions
microbead complexes. (A ) Schematic model of a protein A‐microbead complex with extracellular domain (ECD)‐Fc fusion protein. Protein A is shown attached to the microbead and binding the Fc (blue) domain of the captured bait protein. (B ) Schematic model
It is widely acknowledged that the presence of extracellular matrix components as substrates can drastically modulate the phenotype and gene expression of cultured cells, including tumor cells. A number of published reports indicated
