Voltage Excitation Supply Sensor Transmitters
Last Updated: April 1, 2025
Description
Voltage Excitation Supply Sensor Transmitters are devices that convert an input signal from a sensor into a proportional output signal. They are designed to be compatible with various sensor types, such as accelerometers, thermistors, flow sensors, thermocouples, and strain gauges. These transmitters typically operate as signal converters, accepting a voltage input and transmitting a proportional signal, often in the form of a 4-20 mA current loop .
Working Principle
Voltage Excitation Supply Sensor Transmitters work by providing an excitation voltage or current to the sensor, which is necessary for active sensors to function. This excitation source powers the sensor, allowing it to control the flow of electrons and make a measurement. The transmitter then amplifies and converts the sensor's output signal into a standardized format, such as a 4-20 mA current loop, using a series of resistors, capacitors, operational amplifiers, and transistors .
Applications
These transmitters are used in various applications where precise and reliable signal conversion is required. For example, they are commonly used in industrial settings for monitoring and controlling processes involving temperature, pressure, and flow measurements. Specific examples include using a Wheatstone bridge configuration for strain gauge measurements or providing excitation for piezoresistive pressure sensors .
Advantages over other Sensor Transmitters
Voltage Excitation Supply Sensor Transmitters offer several advantages over other types of sensor transmitters. One significant advantage is their ability to provide a stable and precise excitation source, which is crucial for accurate measurements. Additionally, the use of a 4-20 mA current loop as an output signal is advantageous due to its low susceptibility to interference and ability to transmit signals over long distances without significant loss .
Limitations
One limitation of Voltage Excitation Supply Sensor Transmitters is their higher energy consumption compared to transducers with voltage outputs. This can be a concern in applications where power efficiency is critical. Additionally, the accuracy of the measurements can be affected by the resistance and length of the signal line, which may lead to measurement errors if not properly managed .
Considerations
When selecting and using Voltage Excitation Supply Sensor Transmitters, several considerations should be taken into account. Initial costs can vary depending on the complexity and specifications of the transmitter. Operating expenses may include energy consumption and maintenance costs. Durability and accuracy are crucial factors, especially in harsh industrial environments. Replacement and maintenance costs should also be considered, as these can impact the overall cost of ownership over the transmitter's lifespan .
from Transducer Techniques, LLC
MODEL SST-HV. The SST-HV is a Plug & Play Smart TEDS IEEE 1451.4 compliant Transmitter. Just plug in a TEDS compatible Load Cell or Torque Sensor and the SST-HV will automatically self-calibrate. When used with a non-TEDS Load Cell or Torque Sensor, the SST-LV Transmitter is easily programmed... [See More]
- Excitation & Features: Voltage; Current
- Form Factor: Stand-alone
- Outputs: Analog Current Output; Analog Voltage Output; Relay Output
- Analog Input: 20.000, 50.000, 100.00, 250.00, 500.00 mV
from Laurel Electronics LLC
Features. ±0.2, ±2, ±20, ±200, ±300V and ±600V voltage input ranges. ±2, ±20, ±200 mA and ±5A current input ranges. Accuracy ±0.01% of reading ± 2 counts. All input ranges are user selectable and factory calibrated. Up to 60 conversions per... [See More]
- Excitation & Features: Voltage
- Form Factor: DIN Rail
- Outputs: Analog Current Output; Analog Voltage Output
- Operating Temperature: -40 to 158
from Acromag, Inc.
4 to 20mA DC input. 4 to 20mA DC output. 12-50V DC power from output loop. Low cost isolator. These units receive 4-20mA process current inputs and provide isolated 4-20mA output signals. Each channel operates independently and is isolated from the others to prevent interaction between channels. For... [See More]
- Excitation & Features: Voltage
- Analog Channels: 2
- Outputs: Analog Current Output
- Differential Channels: Yes
from Interface, Inc. - AZ
Why the Interface series SGA AC/DC Powered Signal Conditioner is the best in class: User selectable analog output ±10V, ±5V, 0-10V, 0-5V, 0-20mA, 4-20mA. 110 VAC, 220 VAC OR 18-24 VDC power. Switch selectable filtering 1 Hz to 5 kHz. Single channel powers up to 4 transducers. [See More]
- Excitation & Features: Voltage; Current; Filter
- Form Factor: Stand-alone
- Outputs: Analog Current Output; Analog Voltage Output
- Inputs: mV/V
from OMEGA Engineering, Inc.
The DRC-4710 and DRC-4720 DIN rail mount signal conditioners are self-contained DC powered modules designed for bridge input (load cell, strain gage) or voltage input (not connected to a bridge, excitation supply not used). These signal conditioners contain a precision instrumentation amplifier,... [See More]
- Excitation & Features: Voltage
- Form Factor: DIN Rail
- Outputs: Analog Current Output; Analog Voltage Output
- Inputs: Bridge Input
from Macro Sensors
The DMC-A2 Series Dual Channel AC LVDT Controller is an accurate, high performance, programmable dual channel controller that delivers precise measurement and control for applications using AC LVDT (Linear Variable Differential Transformer) inputs. The 6-digit alphanumeric LED display provides easy... [See More]
- Excitation & Features: Voltage
- Analog Channels: 2
- Outputs: Ethernet; Analog Current Output; Analog Voltage Output
- Form Factor: Panel / Chassis Mount
from FMS USA, Inc.
No programming required. Standardised analogue outputs. Galvanically isolated. DIN rail mount. Gain and offset setting by 20-turn trimmers [See More]
- Excitation & Features: Voltage; Amplifier
- Form Factor: DIN Rail
- Outputs: Analog Current Output; Analog Voltage Output
- Inputs: Bridge Input
from Define Instruments
This versatile 2-wire transmitter accepts a range of standard input types, and outputs a 4-20mA loop. USB programming is hassle free, and takes less than a minute using Define ToolBox. 2-wire universal transmitter (DIN-mount, isolated). Current, voltage, thermocouple, RTD and potentiometer input. [See More]
- Excitation & Features: Voltage
- Inputs: Thermocouple Input; Thermistor Input; RTD Input
- Form Factor: DIN Rail
- Analog Input: 100mV to ±10V; 1µA–24mA
from Spectron Glass and Electronics Inc.
The SA40072 is a single channel signal conditioner, which provides a 4 to 20mA output. With the ability to interface directly with the complete line of Spectron single axis electrolytic tilt sensors (not included), the SA40072 is the perfect solution for narrow or wide angle measurements. The open... [See More]
- Excitation & Features: Voltage; Programmable; Amplifier
- Analog Channels: 1
- Outputs: Analog Voltage Output
- Form Factor: PC Board
from Interface, Inc. - AZ
Why the Interface series DMA DIN Rail Mount Signal Conditioner is the best in class: User selectable analog output 10 V, 5 V, 4-20 mA. 10-28 VDC power. Selectable full scale input range 5 to 50 mV/V. DIN Rail Mountable. More Information. Din rail mountable with user selectable outputs of +/-10V,... [See More]
- Excitation & Features: Voltage; Current
- Form Factor: DIN Rail
- Outputs: Analog Current Output; Analog Voltage Output
- Analog Input: 5 to 50 mV
from Macro Sensors
The DMC-D2 Series DC LVDT Controller is an accurate, high performance, programmable dual channel controller that delivers precise measurement and control for applications using DC LVDT (Linear Variable Differential Transformer) inputs. The 6-digit alphanumeric LED display provides easy to follow... [See More]
- Excitation & Features: Voltage
- Analog Channels: 2
- Outputs: Ethernet; Analog Current Output; Analog Voltage Output
- Form Factor: Panel / Chassis Mount
from FMS USA, Inc.
Digital, microprocessor controlled. Top performance at highest speed. 3 programming keys and 2-line LCD. Easy to set up and operate. 3 housing versions. Available as wall, rail and panel mount. Galvanic isolated. Protected against electrical noise. Additional features. Auto-Calibration and -Tare... [See More]
- Excitation & Features: Voltage; Filter; Amplifier
- Analog Channels: 2
- Outputs: Ethernet; Analog Current Output; Analog Voltage Output
- Form Factor: Panel / Chassis Mount; DIN Rail
from Define Instruments
What it does: The TM-4DPI accepts one of several input signal types and generates one of four commonly required outputs: 4-20mA, 0-20mA, 0-10V, &plusm;10V. The TM-4DPI is designed for applications that have an auxiliary supply to power the transmitter. It can be powered directly from a 24V DC... [See More]
- Excitation & Features: Voltage
- Form Factor: DIN Rail
- Outputs: Analog Current Output; Analog Voltage Output
- Inputs: Thermocouple Input; Thermistor Input; RTD Input
from Interface, Inc. - AZ
Din rail mountable with user selectable outputs of +/-10V, +/-5V or 4-20 mA. 10-28VDC powered suitable for battery or automotive use. Features 1000 Hz bandwidth and push-button shunt calibration. New & Improved Wiring Layout!. User Selectable Analog Output ±10V, ±5V, 4-20 mA. [See More]
- Excitation & Features: Voltage; Current
- Form Factor: DIN Rail
- Outputs: Analog Current Output; Analog Voltage Output
- Analog Input: 5 to 50 mV
from Macro Sensors
The DMI-D1 Series DC LVDT Indicator is an accurate, high performance, programmable single channel DC LVDT indicator that delivers precise measurement for applications using DC LVDT (Linear Variable Differential Transformer) inputs. The 5-digit alphanumeric LED display provides easy to follow setup... [See More]
- Excitation & Features: Voltage
- Analog Channels: 1
- Outputs: Ethernet; Analog Current Output; Analog Voltage Output
- Form Factor: Panel / Chassis Mount
from FMS USA, Inc.
Features. Advantages. Digital microprocessor controlled. High performance & speed capability. Up to 4 independent channels. Saves machine space and money. 4 key programming. Easy to setup and operate. BUS interfacing capability. Remote connectability and integration simplicity. Special features... [See More]
- Excitation & Features: Voltage; Filter; Amplifier
- Analog Channels: 1
- Outputs: Analog Current Output; Analog Voltage Output
- Form Factor: Wall Mount
from Define Instruments
What it does: The Javelin accepts one of several popular input signal types and outputs a 4-20mA signal. Input types: RTD, mA, V, Pot, TC. The Javelin is a loop powered, isolated transmitter. One of its key features is its easy software setup using Define ToolBox. ToolBox enables simple and flexible... [See More]
- Excitation & Features: Voltage
- Analog Channels: 1
- Outputs: Analog Current Output; Analog Voltage Output; Relay Output
- Form Factor: DIN Rail
from Interface, Inc. - AZ
Why the Interface series 500 In-Line Signal Conditioner is the best in class: DC powered. ±5 VDC or 4-20 mA. Small size. Ultra-stable electronics. More Information. Small, DC powered in-line signal conditioner with 9-pin connectors, +/-5V and 4-20mA outputs and 1000Hz bandwidth. [See More]
- Excitation & Features: Voltage; Current; Amplifier
- Form Factor: Stand-alone
- Outputs: Analog Current Output; Analog Voltage Output
- Analog Input: +/- 10 mV
from Macro Sensors
The DMI-A1 Series AC LVDT Indicator is an accurate, high performance, programmable single channel AC LVDT indicator that delivers precise measurement for applications using AC LVDT (Linear Variable Differential Transformer) inputs. The 5-digit alphanumeric LED display provides easy-to-follow setup... [See More]
- Excitation & Features: Voltage
- Analog Channels: 1
- Outputs: Ethernet; Analog Current Output; Analog Voltage Output
- Form Factor: Panel / Chassis Mount
from FMS USA, Inc.
Features. Advantages. IP67 aluminium housing. Can be used in harsh enviroments. No programming required. Easy to setup. Standardised analogue outputs. Multiconnectable with PLC, display etc. Galvanically isolated. Protected against electrical noise [See More]
- Excitation & Features: Voltage; Amplifier
- Analog Channels: 1
- Outputs: Analog Current Output; Analog Voltage Output
- Form Factor: Connectorized
from Define Instruments
The Sentry Trip Amplifier can be used for a myriad of control and alarm applications, and will also be at home in the signal conditioning arena. It accepts analog inputs from a range of industrial sensors, including: process, temperature, flow, frequency, and voltage from 200mV to 300V. It features... [See More]
- Excitation & Features: Voltage
- Analog Channels: 1
- Outputs: Analog Current Output; Analog Voltage Output; Relay Output
- Form Factor: DIN Rail
from Interface, Inc. - AZ
Why the Interface series DCA Vehicle Compatible Signal Conditioner is the best in class: 10-28 VDC Power. User Selectable analog output + 10V, +5V or 4-2 0mA. Small size. NEMA 4X enclosure. DE to 100Hz. Ideal for battery powered applications. More Information. 10-28V supply and user selectable... [See More]
- Excitation & Features: Voltage; Current
- Form Factor: Stand-alone
- Outputs: Analog Current Output; Analog Voltage Output
- Analog Input: 5 to 50 mV
from Macro Sensors
The Macro Sensors LVC-2500 is a single channel signal conditioner that operates on 10-30 Volts DC power to support standard LVDT, RVDT, and VRT half-bridge sensors. Designed expressly for use in 24 Volt systems with PLCs and mini-PLCs, or in 12 Volt mobile and vehicular testing systems, it offers... [See More]
- Excitation & Features: Voltage
- Analog Channels: 1
- Outputs: Analog Current Output; Analog Voltage Output
- Form Factor: DIN Rail
from FMS USA, Inc.
The EMGZ321, a left/right strain gauge amplifier, measures the material tension on both sides of the roller independently. Thus it is possible to monitor the load distribution over the measuring roller with great accuracy. This high-grade product comes as a plug & play unit and is easy to setup. [See More]
- Excitation & Features: Voltage; Filter; Amplifier
- Analog Channels: 2
- Outputs: Ethernet; Analog Current Output; Analog Voltage Output
- Form Factor: Panel / Chassis Mount; DIN Rail