華測數字電荷儀 Huace111型
一、華測數字電荷產品簡介
靜電的實質是存在剩余電荷。電荷是所有的有關靜電現象本質方面的物理量。電位，電場，電流等有關的量都是由于電荷的存在或電荷的移動而產生的物理量。在科研院所、高等院校、檢測站和工礦企業等部門經常需要測量物體的電荷或電荷密度。
本儀器是為測量物體的電荷量而設計的3 1/2位數字顯示電荷量儀，直接讀出電荷量值。由于采用了大規模集成電路、高輸入阻抗運放和靜電電容器等元件，使得本儀器具有精度高、性能穩定、體積小、操作簡單、使用方便等優點?？梢耘浜先魏涡螤钊魏未笮〉姆ɡ谕驳葍烖c。
二、華測數字電荷主要用途
1、測量防靜電工作服和紡織品的帶電電量以及帶電電荷密度（符合GB12014的和GB12704的要求）。
2、測量各種粉體、液體、固體的帶電電荷量。
3、測量靜電火花放電電量。
4、研究摩擦帶電系列。
5、測量靜電導體的電容量。
6、測量物體表面電位及電荷面密度。
三、華測數字電荷產品特點
1、不需計算,以數字直接顯示電荷量值。
2、測量范圍寬，適應不同被測對象的需要。
3、精度高，分辨率高，線性好。
4、讀數穩定。
5、設有清零開關，清零操作方便。
四、華測數字電荷主要技術指標
1、測量范圍：±10pC ～±20μC (±1×10-11～±2×10-5 )。
2、顯示：3 1/2 位發光數碼管顯示，可以顯示電荷的正負極性。負極性顯示“－”號。
3、準確度：±(0.5% 讀數 + 2 數位)。
4、電源：220V, 50HZ 交流電, 耗電約 3W。
5、使用環境：-10℃～45℃ ,80% RH。
6、尺寸：220 mm x 230 mm x 70 mm。
7、質量：約2kg。
五、華測數字電荷典型應用
1、檢測防靜電工作服和紡織品的帶電電量
按照國家標準GB12014-89《防靜電工作服》將工作服放入滾筒擦機摩擦內使其帶電，把帶靜電后的工作服投入法拉第筒內，從Huace111型數字電荷儀上讀出電荷量值。復零后可進行下一次測量。若是測量紡織品的帶電電荷量，可按照國家標準GB/T 12703-91《紡織品靜電性能測試方法》進行。
2、測量各種粉體、液體、固體的帶電電荷量
測量粉體的帶電電荷量時,可根據被測粉體的多少制作不同形狀和不同規格的法拉第筒。粉體帶電的方式可以是摩擦帶電或在電場中荷電。如測量粉塵在電場中的荷電。也可以讓粉體從滑槽中滑下帶電。
3、測量火花放電電荷轉移量
當帶有靜電的靜電非導體與接地金屬體接近時會發生火花放電。用Huace111 型數字電荷儀能精確地測量出放電電量。
4、測量金屬體的自電容和互電容量
讓金屬體帶上靜電(電壓為V)后用法拉第筒和電荷量儀測出金屬球的帶電電荷量Ｑ，由公式Ｃ＝Ｑ/Ｖ 計算出電容量。
單位名稱：北京華測試驗儀器有限公司
Huace111 type digital charge meter
A, product introduction
The electrostatic nature of the residual charge. The charge is the essence of the electrostatic phenomena of all physical quantities. Electric potential, electric field, current and relevant measures are physical quantities due to moving charge or charge. In scientific research institutes, institutions of higher learning, testing station and industrial and mining enterprises and other departments often need to charge or charge density measurement of objects.
The instrument for measuring objects charge and the design of the 3 1/2 digital display instrument directly read out the charge, the charge amount value. Because of the large scale integrated circuit, a high input impedance amplifier and electrostatic capacitors and other components, so that the instrument has the advantages of high precision, stable performance, small size, simple operation, convenient use etc.. The advantages with Faraday tube of any shape of any size.
Two, the main uses
1, measurement of anti static work clothing and textiles charged battery and charge density (with GB12014 and GB12704 requirements).
Quantity of electric charge 2, measurement of various powder, liquid and solid.
3, the measurement of electrostatic discharge energy.
4, study of triboelectric series.
5, the capacitance measurement of electrostatic.
6, the measurement of the surface potential and the surface charge density.
Three, the product features
1, do not need to calculate, with digital display the charge amount value.
2, wide measuring range, to meet the different needs of the measured object.
3, high precision, high resolution, good linearity.
4, stable readings.
5, reset switch reset, convenient operation.
Four, the main technical indicators
1, measuring range: 10pC ~ + 20 C (+ 1 * 10-11 to 2 * 10-5).
2, display: 3 1/2 LED digital tube display, can display the charged polarity. A negative number indicates "-".
3, accuracy: + (0.5% of reading + 2 digital).
4, power: 220V, 50HZ alternating current, power consumption is about 3W.
5, the use of the environment: -10 to 45 DEG C, 80% RH.
6, size: 220 mm x 230 mm x 70 mm.
7, weight: about 2kg.
Five, the typical application
Charged battery 1, detection of anti static work clothing and textiles
According to the national standard GB12014-89 "anti-static overalls" will work clothes in the drum machine friction within the charged, the static electricity after work clothes into the Faraday tube and read out the charge amount value from theHuace111 type digital charge meter. Set it to zero can be carried out after the next measurement. If the quantity of electric charge measurement of textile, can be carried out in accordance with the national standard GB/T 12703-91 "textile antistatic performance test methods".
Quantity of electric charge 2, measurement of various powder, liquid and solid
Measuring powder quantity of electrostatic charge, according to the measured powder how to make different shapes and different specifications of the Faraday tube. The powder can be charged the friction charged or charged. Such as the measurement of dust in the field of electric charge. Can make the powder from the chute sliding charged.
3, measurement of spark discharge amount of charge transfer
When a static static conductor and grounding metal body close to will happen when the spark discharge. UsingHuace111 digital charge meter can accuray measure the discharge of electricity.
4, measurement of metal body self capacitance and mutual capacitance
Let the metal body with static electricity (voltage V) electric charge Q with Faraday cylinder and the charge meter measuring metal ball, by the formula C = Q/V to calculate the electric capacity.
Company name: Beijing Hua Test Instrument Co. Ltd.
