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E-mail
18668589762@126.com
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Phone
18668589762
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Address
No. 1188 Weihai Road, Zhaobaoshan Street, Zhenhai District, Ningbo City, Zhejiang Province
Product Categories
Ningbo Ningyi Information Technology Co., Ltd
Mini lock-in amplifier
NegotiableUpdate on 02/10
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Overview
The mini lock-in amplifier is designed with an FPGA+ARM architecture. FPGA is responsible for completing all digital sampling, mixing, filtering, DDS signal generation, and demodulation result output. ARM completes human-computer interface interaction and instruction reception and issuance. In order to improve cost-effectiveness and fully utilize resources, the system is designed with independent dual input/output channels, which can be used for both independent demodulation and synthesis.
Product Details
The mini lock-in amplifier is designed with an FPGA+ARM architecture. FPGA is responsible for completing all digital sampling, mixing, filtering, DDS signal generation, and demodulation result output. ARM completes human-computer interface interaction and instruction reception and issuance. In order to improve cost-effectiveness and fully utilize resources, the system is designed with independent dual input/output channels, which can be used for both independent demodulation and synthesis.phase-lockedThe demodulation can be directly output from the (AUX) analog signal. DDS can achieve sine waves.
Component List
Lock-in amplifier
Lock in controller upper computer software
USB cable is used to connect to a computer
USB power supply and cable
MINI dual channel lock-in amplifier
Technical Specifications
| General Parameters | |
| size | 120* 76*35 mm |
| weight | <240 g |
| Power adapter | USB 5V/1A |
| interface parameters | |
| power interface | USB 5V/1A |
| communication interface | USB（RS232） |
| synchronous trigger | 4-wire dual trigger |
| signal interface | SMA (6 in total for dual channels) |
| Technical Specifications | |
| input frequency | 0--400kHz |
| input impedance | 50Ω |
| Input noise | Theoretical value less than 6nV/Hz1/2 (>10 kHz) |
| Input signal voltage | ±1V |
| Demodulate output impedance | 50Ω |
| Demodulate output voltage | ±5V |
| Demodulation filtering bandwidth (Hz) | 1000, 100 (can be set according to user needs) |
| Sine modulation frequency | 0--200kHz |
| Sawtooth scanning frequency | 0.01Hz–100Hz |
| Sine modulation output voltage | 2 channels, ±0.5V |
| Sawtooth scanning voltage | ±2V |
| Synthetic output noise | 14-28nV/Hz1/2 (>10 kHz) |
| Synchronous signal output voltage | 3.3V (pulse width>1ms) |
| Number of demodulates | 2 channels (internal reference) |
| Demodulate harmonics | 1F, 2F, 3F, 4F |
| Reference phase resolution | 1.0 ° |
