傳感器信號(hào)放大器是將傳感器輸出信號(hào)進(jìn)行精密放大，線路內(nèi)部進(jìn)行穩(wěn)壓、恒流供橋、電壓電流轉(zhuǎn)換，阻抗適配，線性補(bǔ)償，溫度補(bǔ)償?shù)?，將力學(xué)量轉(zhuǎn)換成標(biāo)準(zhǔn)電流、電壓信號(hào)輸出。
美國(guó)Transducer Techniques LCA-9PC集成放大器和信號(hào)調(diào)理儀功能，用于信號(hào)源和讀出設(shè)備之間的信號(hào)調(diào)理器件，兩級(jí)如衰減器、前置放大器、電荷放大器以及對(duì)傳感器或放大器進(jìn)行非線性補(bǔ)償?shù)碾娖睫D(zhuǎn)換器件。
Transducer LCA-9PC成本低，專用于單電橋式稱重傳感器或者扭矩傳感器的信號(hào)調(diào)節(jié)。靈敏度范圍：0.5 mV/V to 10 mV/V, 頻寬100 Hz to 30kHz，放大輸出信號(hào)有：0 to ±5V, 0 to ±10V, 0-16 mA, 0-20 mA or 4-20 mA.
The LCA-9PC Module provides low-cost, dedicated signal conditioning for a single bridge type load cell or torque sensor. Model LCA-9PC comes with DB9 male and female connectors, which require soldering to user-furnished mating female or male wire connectors. On- board jumper selections include sensitivities from 0.5 mV/V to 10 mV/V, bandwidths from 100 Hz to 30kHz, and amplified outputs of 0 to ±5V, 0 to ±10V, 0-16 mA, 0-20 mA or 4-20 mA. Zero and span adjustments are via precision 25-turn low-tempco metal film potentiometers. The units can be operated next to the sensor with 4-wire hookup or at distances up to 1 km (3300 feet) with 6-wire hookup. An onboard 87.325 kΩ resistor allows easy shunt calibration at the push of a button.
Provision is also made for a user-furnished calibration resistor. Power requirements are 11.8 to 26V DC with load currents from 10 to 60 mA, the latter applying when the unit provides 10VDC excitation to a 350 ohm load cell and delivers a 20 mA analog output
Power Requirement 12 to 26V DC
Bridge Excitation 5 to 10V DC
Bridge Sensitivity 0.5 mV/V to 10 mV/V
Push Button Shunt Calibration Network
Two-Pole Low Pass Selectable Filter 100 HZ to 30 kHZ
Analog Outputs 0 to ±5V, 0 to ±10V, 0-16 mA, 0-20 mA or 4-20 mA
Voltage Range ±2.5 mV min to 100 mV max
Voltage Sensitivity 0 to 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0 or 10 mV/V
(jumper selectable)
Polarity Reversal Jumper selectable
Offset Voltage ±10 μV typ, ±30 μV max
Offset Voltage Tempco ±0.04 μV/°C typ, ±1.2 μV/°C max
Power Supply Rejection ±0.1 μV/V typ, ±0.3 μV/V max
Offset Voltage Aging ±2 μV/1000h typ, ±6 μV/1000h max
Bias Current ±0.3 nA typ, ±2.8 nA max
Voltage Noise 350 nVpp or 56 nVrms typ (0.1 to 10 Hz)
Voltage Noise Density 12.4 nV/vHz typ at 1kHz
Differential Resistance 1 GΩ min
Common Mode Resistance 100 GΩ typ
Common Mode Voltage -5.5V to +5.5V DC
Amplifier Type Differential, bipolar
Voltage Ranges 0 to ±5V, 0 to ±10V (jumper selectable)
Voltage Load 5 kΩ min
Gain Range 50 to 4000
Noise and Ripple See chart on page 12.
Current Source 0-16 mA, 0-20 mA or 4-20 mA (jumper selectable)
Current Load 0-500Ω (10V compliance)
Nonlinearity ±0.005% of FS max
Zero Adjust ±10% of FS min
Zero Tempco ±0.003%/°C of FS max
Span Adjust ±24% of FS min
Span Tempco ±0.003%/°C of FS max
Filter Configuration Two-pole low pass (jumper selectable)
Filter Frequency Response DC to 0.1, 0.3, 1.0k, 3.0, 10 kHz (-6 dB points)
訂貨型號(hào)
LCA-9PC Load Cell Amplifier Signal Conditioner
配件
APD-12VDC N/A AC Power Adapter 12 VDC
ATB-1 N/A Replacement Terminal Block Kit
ATP-T N/A Trim Pot Tool
ADR-KIT N/A ADR-KIT - DIN Rail Clip with Fasteners
相關(guān)型號(hào)
LCA-RTC
DPM-2
TMO-2
TMO-2A
