Product Description
Notch filter module High Q filter out 50hz signal power frequency signal Two levels of notch depth adjustable filter
Notch filter module High Q filter out 50hz signal power frequency signal Two levels of notch depth adjustable filterHighlights：
This module is a fixed 50Hz notch filter, with two-stage notch, better notch depth and higher Q value. PCB board design also adds two-stage sliding as notch depth adjustment. It is specifically applied to the 50Hz notch frequency of power system. The KHz notch above signal acquisition uses a large number of filter capacitors and has good filtering characteristics.
50Hz Notch Module Delivery ListModule + PDF schematic + after-sale technical support + electrostatic bag packaging + shockproof foamTips:(1) The module interface of our shop is clear and the performance is stable. Please perform functional verification under the corresponding experimental conditions in conjunction with the schematic diagram provided by our shop.(2) The basic parameters of this module are in the details page, providing PDF information of the module information; engineering documents are not provided, please be clear to the buyer, if you have operational problems, you can consult customer service.(3) Buyers, before using the module, please read the details page of this module to understand the power supply and use restrictions, to avoid damage to the module due to improper operation.(4) Our modules are guaranteed to provide real module parameters, functions and pictures, and all modules will be shipped after detection.
Please contact customer service after purchase, we will send the information to your mailbox
Module parametersModule model: 50Hz trapModule type: analog filterSupply voltage: ±5V-±15VModule current: 29mA (Max)Module control mode: potentiometerFilter type: notch filterNotch center frequency range: 50Hz (±3Hz); due to capacitance resistance toleranceInput signal form: single-endedInput signal voltage range: less than positive and negative power supplyInput frequency range: DC-1MHzModule gain: noneNotch depth: 40dB (MAX); the greater the notch depth, the greater the impact on both side frequencies.Input and output signal characteristics: DC input and output; output with DC component, please add a DC block to the radio frequency equipment, or use an oscilloscope to measure directly.Module input and output interface: SMA; 24-hour salt spray anti-oxidationModule protection: none; no reverse connection protection, unlimited current protectionCustomized parameters: yesModule features: notch for 50 Hz signalModule application: power system, sensor signal processing, transmitter and receiver, cardiac computer electrical signal acquisitionModule specifications: 50*50*15mm; length*width*height-PCB sizeModule weight: 15.9gModule working temperature: 0-75℃; civil grade
Module description
The notch filter is also called a band-rejection filter (narrow-band-rejection filter), which can effectively suppress certain frequency information in the input signal while ensuring that signals of other frequencies are not lost. So when the circuit needs to filter out the interference signal of a certain frequency, a trap is often used. In our country, the AC frequency of 50hz is used, so when the signal needs to be collected, processed and analyzed, there is often 50hz power frequency interference, which causes great interference to our signal processing. Therefore, the 50Hz wave trap is produced daily It is widely used in life and its technology is basically mature. The power frequency notch filter is not only widely used in the field of communication, but also widely used in the fields of automatic control, radar, sonar, artificial satellites, instrumentation measurement and computer technology.
[Name]: 50Hz high Q-value two-stage notch filter
Main Applications：*50Hz notch in industrial signal detection.*Fifty Hz power frequency interference is filtered out in the instrument.*Power-frequency noise notch before ADC in data acquisition system.*50Hz power frequency notch in the measurement system.*The field of ECG signal acquisition.*It is necessary to suppress 50Hz power frequency interference in various analog circuits.Special attention: Due to the tolerance of capacitance and resistance, the 50 Hz center frequency may be offset, and the measured value is within ±3 hz.
Precautions for using the module(1) The power supply of the module is a positive and negative dual power supply, and the voltage cannot exceed 18V.(2) Since the module is a high-precision device, in order to avoid unnecessary interference, it is recommended to use a linear power supply.(3) It is recommended to use SMA to BNC line input and output signals for output signals. Use an oscilloscope to observe the effect. Poor contact or poor quality wires may cause signal attenuation or excessive noise.(4) The filter measurement generally adopts the oscilloscope point frequency method. If possible, you can use a frequency sweeper or a vector network analyzer to test. Please add a DC blocker.
Frequently asked questionsQ: Are the two potentiometer effects on the module superimposed?A: The two potentiometers are two-level notch depth adjustment, the two stages are connected in series, and the effect is superimposed for the notch.Q: There is no signal input, but there is a fixed frequency signal output. What is the situation?A: In this case, the filter should be self-excited; it may be that the potentiometer is over-adjusted, and you only need to adjust the potentiometer to the normal range.
About Elecdemo:
Elecdemonded in 2015 , Elecdemo is a well-established technology company that integrates supply , R & D , prodund sales , supporting agents , franchises , customization and bulk purchases . We are committed to provid our customers with the best electronic functional module products at the lowest price . We have a professional design and production team to providecustomer service to help our customers greatly improve the efficiency of development，learn and research.
About Transpiration:
1. Global shipping, (except for some countriesand APO/ FPO)
2. Import duties: Taxes are not included in theprice or shipping costs. Customs fees are the responsibility of the buyer.
3. If the package is not delivered within 30 days. please contact us. We will help you solve the problem.
About Delivery:
1. We will process the order in time after the payment is confirmed. Due to the difference in inventory status and time, we will choose to ship from our first warehouse for fast delivery.
2. We only send to the confirmed order address. Your order address must match your shipping address.
3.Service transit time is provided by the carrier, excluding weekends and holidays. Delivery time may vary, especially on holidays.
About guarantee:
1. manufacturers limited warrantyon defective items(excluding items damagedand/or misused after receipt). The accessory is backed by a 3 month warranty
2. The displayed image is taken in real time, but due to different production batches, thecolor may be different. The picture is for reference only, and the actual object is subjectto the final one
3. The defective item must be reported and reurned within the warranty period(if possible,in the original packaging
4. If the product features do not match the advertisement, we will bear all shipping costs.
About feedback:
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2. For any product or shipping problems, please contact us before opening a dispute orleaving any feedback/negative feedback, we will try our best to solve the problem untilyou are satisfied.
Returns and refunds:
1. You have 7 days to contact us and you will not be able to return from the receipt date after30 days. If the item has been owned by you for more than 7 days, it will be considered usedand we will not refund or replace it. with no exceptions! Return shipping costs are theresponsibility of the buver.
2. All returned items must be in original packaging, you must provide us with a shippingtracking number.
3. If there is a return, please contact us in advance, we will help you solve it. If it cannot besolved online, we will accept your return and refund it to you.
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Shipping policy
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Returns
Your satisfaction is important to us. Hexlight offers a 14-day Free return policy: if you are not fully satisfied with your purchase, you may request either a full refund or an exchange. All return shipping costs are fully covered by us.
Condition
Brand New
Shipping
This item is shipped directly from our supplier in China with tracking.