TDJ-814聲級(jí)計(jì)是一款經(jīng)濟(jì)實(shí)用且功能豐富的聲學(xué)測(cè)量?jī)x器，廣泛應(yīng)用于多種場(chǎng)景，包括噪音工程、品質(zhì)控制、健康防治以及各種環(huán)境噪音監(jiān)測(cè)。例如，在學(xué)校、醫(yī)院、商場(chǎng)、影劇院、辦公室、道路交通、家庭和音響等場(chǎng)所，TDJ-814都能提供精準(zhǔn)的音量測(cè)量。

該聲級(jí)計(jì)采用高精度設(shè)計(jì)，測(cè)量范圍寬達(dá)30至130分貝，能夠滿足從安靜環(huán)境到高噪音場(chǎng)景的測(cè)量需求。其測(cè)量精度為±1.5分貝，確保了數(shù)據(jù)的可靠性。TDJ-814配備了LCD顯示屏，尺寸為30×50毫米，顯示清晰，便于用戶讀取數(shù)據(jù)。

此外，TDJ-814還具備多種實(shí)用功能。它支持快速和慢速反應(yīng)速率選擇，能夠根據(jù)測(cè)量需求靈活調(diào)整。其最大值鎖定功能可以記錄測(cè)量過(guò)程中的最高聲級(jí)，方便用戶分析數(shù)據(jù)。TDJ-814還配備了AC類(lèi)比信號(hào)輸出接口，可以連接至頻率分析儀或X-Y軸記錄器，進(jìn)行更深入的數(shù)據(jù)統(tǒng)計(jì)分析。

在硬件方面，TDJ-814采用了1/2英寸電容式麥克風(fēng)，頻率響應(yīng)范圍為31.5赫茲至8.5千赫，能夠捕捉寬頻段的聲波信號(hào)。設(shè)備內(nèi)置4位數(shù)顯示，解析度為0.1分貝，取樣率為每秒2次，確保了測(cè)量數(shù)據(jù)的實(shí)時(shí)性和準(zhǔn)確性。

TDJ-814的設(shè)計(jì)注重用戶體驗(yàn)。其一體式后支架方便用戶在不同場(chǎng)景下使用，無(wú)論是手持還是固定測(cè)量都能輕松應(yīng)對(duì)。設(shè)備采用6F22 9伏堿性電池或直流電源適配器供電，重量約為350克，尺寸為235×70×30毫米，便于攜帶和操作。工作環(huán)境溫度范圍為0至40攝氏度，相對(duì)濕度為10%至70%，適合在多種氣候條件下使用。

TDJ-814聲級(jí)計(jì)以其高性價(jià)比、精準(zhǔn)測(cè)量和便捷操作，成為環(huán)境噪聲監(jiān)測(cè)和聲學(xué)研究的理想選擇。

The TDJ-814 Sound Level Meter is an economical and feature-rich acoustic measurement instrument, widely used in various scenarios, including noise engineering, quality control, health prevention, and environmental noise monitoring. For instance, it can be applied in schools, hospitals, shopping malls, theaters, offices, road traffic, homes, and audio settings to provide precise sound level measurements.

This sound level meter is designed with high precision, offering a wide measurement range from 30 to 130 decibels, which meets the needs of both quiet and high-noise environments. Its measurement accuracy is ±1.5 decibels, ensuring reliable data. The TDJ-814 is equipped with an LCD display, measuring 30×50 millimeters, providing clear and easy-to-read data for users.

In addition, the TDJ-814 features multiple practical functions. It supports both fast and slow response rate options, allowing users to adjust according to their measurement needs. The maximum value lock function can record the highest sound level during the measurement process, facilitating data analysis. The TDJ-814 also comes with an AC analog signal output interface, which can be connected to a frequency analyzer or X-Y axis recorder for more in-depth data statistical analysis.

On the hardware side, the TDJ-814 uses a 1/2-inch condenser microphone, with a frequency response range of 31.5 hertz to 8.5 kilohertz, capable of capturing wide-bandwidth sound wave signals. The device is equipped with a 4-digit display, with a resolution of 0.1 decibels and a sampling rate of 2 times per second, ensuring real-time and accurate measurement data.

The TDJ-814 is designed with user experience in mind. Its integrated rear bracket makes it convenient for users to use in different scenarios, whether for handheld or fixed measurement. The device is powered by a 6F22 9-volt alkaline battery or a DC power adapter, weighing approximately 350 grams, with dimensions of 235×70×30 millimeters, making it portable and easy to operate. The working environment temperature range is 0 to 40 degrees Celsius, with relative humidity of 10% to 70%, suitable for use in various climatic conditions.

With its high cost-effectiveness, precise measurements, and convenient operation, the TDJ-814 Sound Level Meter is an ideal choice for environmental noise monitoring and acoustic research.