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传感器信号放大器是将传感器输出信号进行精密放大，线路内部进行稳压、恒流供桥、电压电流转换，阻抗适配，线性补偿，温度补偿等，将力学量转换成标准电流、电压信号输出。
美国Transducer Techniques TMO-2A集成放大器和信号调理仪功能，用于信号源和读出设备之间的信号调理器件，如衰减器、前置放大器、电荷放大器以及对传感器或放大器进行非线性补偿的电平转换器件。
Transducer TMO-2A传感器模块是一款差分放大器/信号调节器，价格好，性价比高。并提供激励，结算和满刻度校准功能。
The TMO-2A Transducer Modules is a complete differential amplifier/signal conditioners with self contained power. The unit provide excitation, balance and span adjustment via precision 10 turn pots, and shunt calibration necessary to couple a user supplied bridge type transducer to an indicating instrument. Zero to full scale output is specified at 4-20 mA. The TMO-2A provides a floating shunt calibration circuit which applies calibration at the transducer, thereby eliminating errors due to line losses. The excitation supply incorporates a Wagner Ground to greatly improve Common Mode Rejection. The factory set bandwidth of the module is narrow to improve stability. The removal of a single capacitor will increase the frequency response DC to 60K Hz for dynamic data applications.
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SIGNAL CONDITIONER
Type: Full external bridge
Sensor Resistance: 120 to 1000 ohm
Balance Range (350 OHM): 3% of bridge resistance
Shunt Calibration: Single point momentary
Calibration Value: 1 mV/V resistor provided
BRIDGE AMPLIFIER
Type: Bipolar differential
Gain Range: 67 to 737
Input Sensitivity: 1 mV/V to 10 mV/V
Input Impedance: 10 Megohm minimum
Output Voltage: 0 to 10 Volts (2 mV/Vspecs)
Output Current: 0 to 10 mA
Output Impedance: 75 ohm
CMR: 110 db minimum, DC to 60 Hz
Noise and Ripple: Less than 3 mVP-P
Nonlinearity: .01% maximum
Type: Low pass, 6 db, octave
Frequency: 16 Hz standard (160 and
1600 Hz available)
EXCITATION SUPPLY
Type: Constant voltage
Output: 8 VDC ± .25V
Output Current: 0 to 120 mA
Current Limit: Factory set at 65 mA
Load Regulation: .1% maximum for 100% load
change
GENERAL
Balance Stability: .2% for 8 hours
Gain Stability: .01% for 8 hours
Tempco: .02% full scale/°C
Isolation: 1000 Megohm, output to AC
Operating Temp: 0 to 50°C
Size: 3 x 3.75 x 6.25 inches
Weight: Less than 2 lb approx.
Fuse: 250 mA internal
Power: 115 VAC 10% 60 Hz 3 Watts
订货型号
Order Code Model Capacity Range Calibration Description
TM0-2A N/A 120 VAC Conditioner Module 16 Hz Filter
TM0-2A-160 N/A 120 VAC Conditioner Module 160 Hz Filter
TM0-2A-1600 N/A 120 VAC Conditioner Module 1600 Hz Filter
