Signal conditioning system structure The mechanical structure of the SC-1000 series signal conditioning system adopts the 3U template structure of the international industry standard. In the electrical structure, the signal conditioning system adopts a modular design. Each signal conditioning template is a functional module, making the system relatively independent. Sex, and can achieve standardization, modularization, so that the system can easily connect with a variety of data acquisition systems. The logic diagram of the signal conditioning system is shown in the figure below. The system has a simple structure, complete types of measurement function templates, easy to use, easy to install and maintain, easy to expand, the user can be configured into large, medium and small-sized signal conditioning systems based on different application needs. The signal conditioning system consists of a signal conditioning chassis, various signal conditioning function templates, and a system cabinet. The following sections describe the various components of the system in detail. Signal conditioning function template SC-1000 series signal conditioning products adopt a modular design. Each signal conditioning template is a functional module. The template structure adopts the international standard 3U structure. The SC-1000 series of signal conditioning products have: measurement function template types complete, simple structure, easy to use, easy to install and expand. Therefore, the user can flexibly configure according to different requirements and different tests. SC-1000 series signal conditioning templates include: • SC-1010 Strain Signal Conditioning Template 设计 Designed symmetrical high-precision bridge excitation voltage. The symmetric bridge voltage has no common mode voltage effect on the amplifier, improving the measurement accuracy, ensuring the measurement range, and improving the safety and reliability. • SC-1020 voltage, current, or displacement signal conditioning template ☉ Can be used to measure the amount of voltage, current (0 ~ 20mA or 4 ~ 20mA) or displacement. • SC-1025 LVDT Signal Conditioning Mask ☉ The sine wave excitation voltage has an amplitude of 3Vrms and can be configured as a voltage in the range of 2.1Vrms to 24Vrms as required. • SC-1031 ICP or AC voltage signal conditioning mask ☉ High-pass filter circuit provides 0.7Hz (-3dB) cutoff frequency. The high pass filter cutoff frequency can also be configured as required. • SC-1035 Charge Signal Conditioning Mask ☉ The maximum non-clipping input signal is 10000pC. The measured charge signal can be configured as required. • SC-1040 RTD signal conditioning template ☉ Supports Pt2000, Pt1000, Pt500, Pt100 type temperature sensors. You can also configure other RTD type temperature sensor signal conditioning templates as required. • SC-1050 Thermocouple Signal Conditioning Template å… Sixth-order Butterworth-type low-pass active filter. The filter cutoff frequency or function can also be configured as required. • SC-1051 Isolated Thermocouple Signal Conditioning Module 具有 Provides electrical isolation between the front and rear (between front-end input circuitry and back-end output circuitry), electrical isolation between left and right (between channels), and Power Supply (front-end circuitry for each channel The section provides isolation of separate isolated power and ground lines. Three-way full isolation is achieved. • SC-1060 High-Voltage Signal Conditioning Module ☉ Can measure 400V peak-to-peak (±200Vp-p) internal voltage, which will buffer the output by attenuating the measured input signal by 19 times. • SC-1062 voltage and current signal conditioning masks for high common-mode voltages ☉ Can measure AC voltage, DC voltage, AC current, or DC current in high common-mode voltage environments. Signal Conditioning Chassis The measured analog signal from the sensor and the signal conditioning module inside the signal conditioning module provide the excitation source for the sensor through the socket on the front panel of the signal conditioning module. After conditioning, the analog signal is sent to various data acquisition systems or measurement instruments through the cable behind the signal conditioning chassis. The signal conditioning chassis adopts the international industry standard 3U structure chassis. The spacing between the templates in the signal conditioning chassis is 30.48mm (1.2 inches). Chassis includes desktop chassis, bus backplane, linear power supply, power filter, power supply insurance, illuminated power switch, power cord. The chassis power supply directly uses 220V, 50Hz Ac Power Supply. According to different requirements, the structure of the signal conditioning chassis is designed into four types. Various types of SC-1000 series signal conditioning function templates are applicable to different specifications of the chassis: SC-1000 series signal conditioning products are based on the analysis of similar foreign products, drawing on the advantages of existing products, and based on the development of the latest technology and application requirements in harsh industrial environments to design and development. SC-1000 series signal conditioning products are widely used in aviation, aerospace, and aviation, with their high measurement accuracy, reliability and stability, strong anti-interference ability, high performance-to-price ratio, low maintenance cost, and convenient after-sales service. Ships, weapons, science and engineering colleges, architecture, power, communications, petrochemicals, railway transport or medical equipment industries. SC-1000 series signal conditioning products are at the international advanced level in terms of function and performance, and fully own all intellectual property rights. Our company receives customer commissions and develops various signal conditioning templates or modules as required. Beijing Jupuxian Computer Engineering Technology Co., Ltd. Tel: 010-62341751 Featuring Level VI energy efficiency and meet IEC/EN/UL 62368-1 safety standards, the external universal Power Adapter provides 8 safety protections and best after-sale service. The 25W to 39W series power adapters follows the PC flame retardant plastic case, accepts three standard AC inlet version IEC320-C6,IEC320-C8 and IEC320-C14 for I.T.E/AV equipment needed. EN61558 Ac adapter,Laptop Adapter,19V Ac Power Adapter,Universal Adapter Shenzhenshi Zhenhuan Electronic Co Ltd , https://www.szzhpower.com
桥 Bridge Road excitation voltage source error ±0.05%.
æ¡¥ Bridge excitation source has overcurrent protection.
æ¡¥ The bridge excitation source circuit has a remote or near-end sampling selection function to ensure the accuracy of the far-end excitation voltage value in the case of a long strained wire in the measured strain bridge. The measurement accuracy is independent of the connection cable length between the strain gage under test and the SC-1010 signal conditioning module; it is not related to the change of the resistance value of the connection cable due to the change of the ambient temperature.
å…¨é¢ Full support for full-, half-, and quarter-bridge measurements, with quarter-bridges supporting 120Ω, 350Ω strain gages, and full or half-bridges supporting 120Ω to 1000Ω strain gages.
具有 With bridge calibration function, the bridge zero adjustment range is ±2V.
☉ Two-speed, fourth-order, low-pass active filtering. The default configuration is 100Hz Butterworth and 10kHz Bessel lowpass filters. The filter cutoff frequency or function can also be configured as required.
方便 Conveniently convert the amount of current or displacement into voltage and perform corresponding conditioning.
ä¿¡å· The signal amplifier circuit uses a low-drift, high-precision amplifier. Gain: 1, 2, 5, and 10 times the fourth gear optional. You can also configure the gain value as required.
☉ Two-speed, fourth-order, low-pass active filtering. The default configuration is 100Hz Butterworth and 10kHz Bessel lowpass filters. The filter cutoff frequency or function can also be configured as required.
☉ Provide a high-precision +10V excitation voltage source for moving sensors. The excitation voltage source error limit is ±0.5%. The excitation source can also be configured as a voltage in the range of +6V to +20V as required.
激励 The excitation source has overcurrent protection.
具有 With input signal overvoltage protection.
具有 With input signal filter circuit.
æ£å¼¦ The sinusoidal excitation voltage frequency is 2.5kHz, 5kHz or 10kHz. It can also be configured as frequency values ​​in the range of 20Hz to 20kHz as required.
éš Sinusoidal excitation voltage changes with temperature will not affect the overall performance of the circuit. Because the signal measurement circuit calculates the ratio of the output signal of the LVDT sensor to the input excitation voltage, it eliminates the drift effect of the sine wave excitation voltage with temperature changes, thereby improving the measurement accuracy.
æ£å¼¦ Sinusoidal excitation source temperature coefficient 100ppm/°C, frequency temperature coefficient 200ppm/°C.
æ£å¼¦ Sinusoidal excitation source short-circuit current 60mA, sine-wave excitation voltage minimum load impedance: 95Ω (3Vrms).
激励 The excitation source has a thermal protection function.
具有 With 6th-order Bessel low-pass active filtering. You can also configure the filter cutoff frequency as required; or configure it as a sixth-order Butterworth-type low-pass active filter.
☉ Provide an excitation constant current source of +24VDC, 4mA for ICP piezoelectric accelerometers. The excitation current error limit is ±0.2%. The excitation source can also be configured to have a current value in the range of 2 mA to 10 mA as required.
ç”µè· Charge sensitivity is 1mV to 50mV/pC (configurable on demand).
☉ High-pass filter circuit provides 0.7Hz (-3dB) cutoff frequency. The high pass filter cutoff frequency can also be configured as required.
具有 With 6th-order Bessel low-pass active filtering. You can also configure the filter cutoff frequency as required; or configure it as a sixth-order Butterworth-type low-pass active filter.
输出 The output noise level is less than 1mV (rms) when the input capacitance is 1000pF. The output noise level is less than 10mV (rms) in the highest gain range. Harmonic distortion is 1%.
ç”µè· When measuring high-frequency signals, the charge amplifier may block. The RESET circuit is used to eliminate the blocking of the charge amplifier.
实现 When the temperature is zero, the output is zero voltage. In the positive temperature signal, the output is a positive voltage value, and in the negative temperature signal, the output is a negative voltage value.
æ¨¡æ¿ The template gain value can be configured based on the range of the measured temperature signal. Greatly improve the quality of measurement.
å… Sixth-order Butterworth low-pass active filter. The filter cutoff frequency or function can also be configured as required.
实现 Measurement accuracy is achieved irrespective of the connection cable length between the temperature sensor and the SC-1040 series RTD signal conditioning module; it is independent of the change in the resistance value of the connection cable due to changes in the ambient temperature.
具有 With input signal overvoltage protection.
具有 Has input signal filtering function.
冷 The cold junction compensation circuit is not configured on the template. Instead, an external cold junction compensation function is used. In this way, the measurement accuracy is improved, and the cost is reduced in the case of a large number of measurement channels.
具有 Thermocouple sensor open circuit detection function.
具有 With input signal overvoltage protection.
具有 Has input signal filtering function.
The analog signal tri-lateral isolation technology cuts off the ground current loop, improves the common-mode rejection ratio, eliminates cross-talk between channels, significantly reduces noise, reduces measurement errors, and protects the safety of measurement instruments and operators. This improves the reliability, stability and safety of the entire measurement system.
Analog signal isolation technology prevents the switching of high-current contactors, phasing of thyristors, electric arc pulses, electromagnetic waves, etc., from affecting the measuring device, thereby ensuring the safety, reliability, and stability of the entire system. Analog signal isolation technology is the best way to solve low-level small-signal measurement under strong electromagnetic interference environment.
å… Sixth-order Butterworth low-pass active filter. The filter cutoff frequency or function can also be configured as required.
冷 The cold junction compensation circuit is not configured on the template. Instead, an external cold junction compensation function is used. In this way, the measurement accuracy is improved, and the cost is reduced in the case of a large number of measurement channels.
具有 Thermocouple sensor open circuit detection function.
具有 With input signal overvoltage protection.
具有 Has input signal filtering function.
☉ Suitable for high AC voltage or high DC voltage measurement.
具有 Has a fourth-order Butterworth type low-pass active filter. You can also configure the filter cutoff frequency as required; or configure it as a Bessel lowpass active filter.
具有 Has a fourth-order Butterworth type low-pass active filter. You can also configure the filter cutoff frequency as required; or configure it as a Bessel lowpass active filter. 
• SC-1000-4 Small Desktop Signal Conditioning Chassis 3U Structure Chassis Supports 4 Formwork Slots • SC-1000-8 Full-Length Desktop Signal Conditioning Chassis 3U Structure Chassis Supports 8 Template Slots • SC-1000- 16-Type Full-Range Desktop Signal Conditioning Chassis 6U Structure Chassis Supports 16 Formwork Slots • SC-1000-16 Rack-mount Signal Conditioning Chassis 6U Structure Chassis Supports 16 Template Slots (Since Rackmount Signal Conditioning Chassis Installation In the cabinet, there is no need to separately configure the power filter and the upper and lower tanks).
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Full range of high precision and customizable SC-1000 series signal conditioning system
The signal conditioning system is the interface between the sensor and the data acquisition system. Can carry out signal receiving, signal physical quantity conversion, signal amplification, signal linearization, signal cold junction compensation, signal zero calibration, signal filtering, signal calibration, and bridge configuration for various analog signals output by various measured sensors. , and provide the required excitation for various sensors (various types of AC voltage excitation, DC voltage excitation, AC current excitation or DC current excitation), making it a data acquisition system (eg PXI data acquisition system, VXI data Acquisition systems and PC data acquisition cards, etc. or other measuring instruments can accept a "clean" measurable voltage level within the trimmed voltage level range for data acquisition and processing.