Precision at Your Fingertips: The Latest in Stopwatch Calibrators

https://www.suindigital.com/stopwatch-calibrator/sf2002-stopwatch-calibrator.html

In today’s fast-paced world, accuracy matters more than ever. Whether you’re conducting scientific experiments, timing athletic performances, or managing industrial processes, a fraction of a second can make all the difference. That’s why investing in a reliable stopwatch calibrator is essential—and we’ve got just the solution to meet your needs.

 

Why Stopwatch Calibration Matters

 

Stopwatches are indispensable tools in various industries. However, over time, even the most advanced models can lose accuracy due to wear and tear, environmental factors, or frequency drift. This is where a stopwatch calibrator becomes crucial. By ensuring precise time measurements, calibrators help:

 

Maintain accuracy in experiments and tests.

 

Boost credibility in competitive environments like sports.

 

Enhance productivity in industrial and manufacturing settings.

 

Introducing Our Advanced Stopwatch Calibrator

 

We are excited to unveil our state-of-the-art stopwatch calibrator, designed with cutting-edge technology to meet the most demanding requirements. Whether you need it for personal use or professional applications, our calibrator delivers:

 

High Precision: Calibrates stopwatches with an accuracy of up to 0.001 seconds.

 

User-Friendly Interface: A simple and intuitive design makes it easy for anyone to use.

 

Versatile Compatibility: Suitable for various stopwatch models across industries.

 

Durability: Built to withstand tough environmental conditions, ensuring longevity.

 

Features That Set Us Apart

 

Digital Display: The easy-to-read digital screen provides real-time updates during the calibration process.

 

Multi-Mode Functionality: Calibrate stopwatches in countdown, lap-time, or split-time modes.

 

Compact Design: Lightweight and portable, our calibrator is perfect for on-the-go professionals.

 

Eco-Friendly Power: Powered by a rechargeable battery, reducing your environmental footprint.

 

Who Benefits from a Stopwatch Calibrator?

 

Our stopwatch calibrator caters to a diverse range of users, including:

 

Scientists and Researchers: Ensure accurate timing in experiments and data collection.

 

Athletes and Coaches: Optimize training sessions with precise time measurements.

 

Industrial Workers: Improve efficiency in time-sensitive manufacturing processes.

 

Event Coordinators: Maintain fairness in competitions and timed activities.

 

Why Choose Us?

 

With years of experience in timekeeping technology, our company stands out as a leader in innovation and quality. We prioritize customer satisfaction and provide exceptional after-sales support, ensuring your investment delivers long-term value. Here’s what our customers have to say:

 

"The best stopwatch calibrator I’ve ever used! It’s accurate, easy to operate, and incredibly reliable. Highly recommended!"—John D., Research Scientist

 

"This calibrator has completely transformed the way I manage my training sessions. It’s a game-changer!"—Sarah K., Track Coach

 

How to Get Your Stopwatch Calibrator

 

Ready to take your timing accuracy to the next level? Visit our Stopwatch Calibrator Product Page now to learn more and place your order. Don’t miss out on the opportunity to own the most advanced calibrator on the market!

 

Conclusion

 

Precision and reliability are the cornerstones of success in today’s competitive world. With our stopwatch calibrator, you can achieve unparalleled accuracy in your timing tasks, no matter the industry or application. Experience the difference today—because when every second counts, you deserve the best.

How to Measure Adjacent Channel Power with a Spectrum Analyzer?

Adjacent channel power, as the name suggests, measures the power of the left and right channels (also known as upper and lower channels) adjacent to the transmitter's working channel. The smaller the power leakage of the carrier channel measured in the adjacent channel, the better the performance. Excessive energy leakage into adjacent channels will cause interference to adjacent operating systems and affect the normal communication of adjacent channels, so adjacent channel power is an important index to evaluate the performance of transmitters.

The adjacent channel power function of the spectrum analyzer is used to measure and analyze the power characteristics of the signal in a specified frequency range. The measurement of adjacent channel power can help us quickly locate the maximum and minimum value of signal strength, to carry out leakage detection, interference analysis, communication debugging, and other work. When we need to know the power distribution characteristics of the signal in a certain frequency range, we can use the adjacent channel power function to measure.

Below is the introduction to how to use spectrum analyzer SA9232 and RF signal generator TFG3836 to measure adjacent channel power.

Set the central frequency of the spectrum analyzer according to the generator output frequency.

To enter the adjacent channel power function, you need to press【MEAS】,select【ACP】

Set the adjacent channel frequency offset and bandwidth according to the requirements, up to 6 adjacent channels.

 

Fig 1. ACP Measurement

Stopwatch And Timer Calibration

Stopwatch and timer calibrations are perhaps the most common calibrations performed in the field of time and frequency metrology. Hundreds of laboratories and metrology institutes calibrate many thousands of timing devices annually to meet legal and organizational metrology requirements.

There are three generally accepted methods for calibrating a stopwatch or timer: the direct comparison method, the totalize method, and the time base method. The first two methods consist of time interval measurements that compare the time interval display of the DUT to a traceable time interval reference. In the case of the direct comparison method, the time interval reference is normally a signal broadcast, usually in the form of audio tones. In the case of the totalize method, the time interval reference is generated in the laboratory using a synthesized signal generator, a universal counter, and a traceable frequency standard. The third method, the time-based method, is a frequency measurement. It compares the frequency of the DUT's time-base oscillator to a traceable frequency standard.

Suin SF2002 stopwatch calibrator is an easy-operating and high-precision instrument that adapts the totalize method, which can calibrate electric stopwatches (405,407,408,415/417), mechanical stopwatches and digital quartz electronic stopwatches.

It can not only calibrate one stopwatch but also several ones with several fixtures, which meet different requirements, just like below pictures shown.

 

 

 

If you want to know more information about it, please contact us for its User's manual or operation video.

Basic Function Introduction - Frequency Measurement

Frequency measurement plays a very important role in the field of electronic engineering. Whether in communication systems, power systems or other fields, accurate measurement of the frequency of signals is essential. In communication systems, frequency measurements are used to ensure that the signals being sent and received are in the correct frequency range. For example, during modulation and demodulation, the frequency of a signal needs to be measured accurately to ensure that the information is transmitted correctly. In power systems, frequency measurements are critical to maintaining the stability of the power grid, where variations in frequency can lead to faults or instability in the power system.

The frequency range can be divided into three parts: low frequency: below 200Hz, medium frequency: 200Hz-6khz, and high frequency: above 6KHz. In the market, the most commonly used equipment for measuring frequency are oscilloscopes, spectrum analyzers, and frequency counters, of which oscilloscopes are relatively low in frequency measurement accuracy and have large errors. The spectrum analyzer can accurately measure the frequency and display the spectrum, but measurement speed is slow and cannot quickly track and capture the change of the measured signal frequency in real-time. The frequency meter can quickly and accurately capture the change in the frequency of the measured signal, and it has a wider range of applications.

Now, we take the Suin SS7300 frequency counter as an example to introduce its frequency measurement function:

SS7300 has three output channels, with 1 and 2 channels measuring up to 200MHz.

Set the frequency of the signal generator to 200MHz, select the frequency measurement function, and the measurement results are shown in Fig 1:

 

Fig 1. Frequency Measurement

 

Channel 3 can be equipped with channel options in a higher frequency range to meet customer needs, as shown in Fig 2, and can reach up to 40GHz.

 

Fig 2. Channel Options

If you have frequency measurement needs, welcome to consult.

What is an AC signal generator?

 AC signal generator

TFG1900A Series are economical function generator which has two channel outputs, 20ppm frequency accuracy, and can make 16 kinds waveform. Besides that, with multifunction, simple keyboard and digital displaying, it is broadly used in education, personal test and industrial field to meet your basic test requirement.

Features

* Dual channel outputs

* Frequency accuracy 20ppm and 1μHz resolution

* Abundant modulation function AM, FM, PM,

  PWM and FSK

* Provide sweep and burst

* 100MHz Built-in counter

* Standard interface: USB Host & Device

Specifications

		TFG1905A	TFG1910A	TFG1920A
Frequency
Range	Sine	1μHz ~ 5MHz	1μHz ~ 10MHz	1μHz ~ 20MHz
	Square, Pulse	1μHz ~ 5MHz
	Others	1μHz ~ 1MHz
Resolution		1μHz, 6 digits
Accuracy		±20ppm
Waveform
Type		11 build-in waveform(Sine, Square, Ramp, Pulse, etc.) +5 user-defined arbitrary waveforms
Length		4096 points
Sampling Rate		100 MSa/s
Vertical Resolution		10 bits
Amplitude
Range	Frequency≤8MHz	0 ~ 10Vpp(50Ω),  0 ~ 20Vpp(Open circuit)
	Frequency>8MHz	0 ~ 9  Vpp(50Ω),  0 ~ 18Vpp(Open circuit)
Resolution		2mVpp(Amplitude>2Vpp)
		0.2mVpp(Amplitude≤2Vpp)
Offset (Ampl. 0Vpp)
Range		±5Vdc (50Ω), ±10Vdc (Open circuit)
Resolution		2mVdc
Modulation (CHA)
FM,AM,PM,PWM	Carrier Waveform	16 waveforms, Sine, Square, Ramp, etc. (only Pulse for PWM)
	Modulating Waveform	16 waveforms, Sine, Square, Ramp, etc.
	Modulating Frequency	2mHz ~ 20kHz
FSK	Carrier Waveform	16 waveforms, Sine, Square, Ramp, etc.
	Hope Frequency	1μHz ~ 5MHz	1μHz ~ 10MHz	1μHz ~ 20MHz
	Rate	1mHz ~ 100kHz
Sweep (CHA)
Carrier   Waveform		16 waveforms, Sine, Square, Ramp, etc.
Type		Linear or Logarithmic
Sweep Time		50ms ~ 500s
Burst (CHA)
Carrier  Waveform		16 waveforms, Sine, Square, Ramp, etc.
Burst Count		1 ~ 1000000
Internal Period		1μs ~ 500s
Start/Stop Phase		0° ~ 360°
SYNC Output
Waveform Characteristic		Square, rise/fall time ≤ 20ns
Output Level		TTL compatible
Counter
Frequency Range		1Hz ~ 100MHz
Input Amplitude		100mVrms ~ 7Vrms
Period		50ms ~ 5s
General   Characteristics
Power		AC 100 ~ 240V, 45 ~ 65Hz, < 30VA
Display		VFD display
Dimension & Weight		322×256×102mm, Approx.1.5 kg

Serial and Parallel Connection of DC Power Supply

In the electricity experiment, sometimes we need more current or voltage power supply, in this condition, several power supplies can be parallel or serial connected to realize this function. It can be applied in many conditions, such as high power load is required in the electricity circuit, and redundant power supplies are required to strengthen the system's stability. The parallel or serial connection of power supplies can increase the current or voltage output in the electricity circuit.

Along with the technology development, smaller size, and multichannel power supply can meet nowadays engineers and teaching requirements. Suin SK3323/3325/3503 three channels programmable DC power supply is just one example.

Please see the below pictures of the parallel and serial connection of SK3323 and pay attention to some points during the experiment.

1. Connection way. Parallel and serial connection are two normal connection ways.

During serial, the positive terminal of channel 1 should be connected to the negative terminal of channel 2, the current of the serial connection is the same as that in independent channel output, while the voltage is the sum of two channels, which solves the high voltage requirement.

 

Serial connection on SK3323

 

In parallel, you just need to connect as the independent channel output, and press 【PARA】 to enter the parallel connection way. The voltage in parallel remains the same as that in independent channel output, but the current is the sum of two channels, which solves the high current requirement.

 

Parallel connection on SK3323

 

2. Over voltage and over current protection. Parallel or serial connection power supply should have proper control and protection to the current and voltage to make sure the power supply running normally without making any injury to the operator or the instruments. Suin SK3323/3325/3503 power supply has such a function too.

 

If you are interested in it or have any questions, please do not hesitate to contact Suin.